ANNUAL REPORT - iwmbd. · PDF fileMd. Tarikul Islam, Tarun Kanti Magumdar, Md. Yousuf Mamun,...
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ANNUALREPORT
2013
Published by Institute of Water Modelling
House # 496, Road # 32, New DOHS
Mohakhali, Dhaka, Bangladesh
Copyright @ 2013 IWM All rights reserved
Editorial Board
Chief Editor : Prof. Dr. M. Monowar Hossain
Editors : Abu Saleh Khan, PEng.
Dr. A.F.M. Afzal Hossain, PEng.
Co-Editor
Saad Siddiqui, PEng.
Md. Ashraf Ali Khan
Compilation
M H AnupamMahmud
Printed by Finearch, Dhaka
This publication is available in electronic form at
www.iwmbd.org/publicaions/annual report 2013
Credits:
S M Mahbubur Rahman, Zahirul Haque Khan, S M
Shah-Newaz, Mir Mostafa Kamal, Md. Sohel Masud,
Md. Amirul Islam, Rubayat Alam, Md. Mobassarul
Hasan, Goutam Chandra Mridha, Md. Rezaul Hasan,
Md. Tarikul Islam, Tarun Kanti Magumdar, Md. Yousuf
Mamun, Asif Mohammed Zaman, Pankaj Kumar
Maitra, Farhana Akhter Kamal, Md. Tohidul Islam.
This publication may be reproduced in whole or in
part in any form for educational and non-profit
purposes without written permission from the
copyright holder, provided acknowledgment of the
source is made. IWM would appreciate receiving a
copy of any publication that uses this publication as a
source. No use of this publication may be reproduced
for resale or any commercial purpose whatsoever
without prior written permission from the competent
authority of IWM.
Institute of Water Modelling (IWM) is a Trustestablished by the Government of Bangladeshin December 1996 to function as a Centre ofExcellence and Learning in the field ofComputational Hydraulics, Water Modellingand allied Sciences. IWM owes its genesis tothe three phases UNDP-DANIDA aided SurfaceWater Simulation Modelling Programme(SWSMP) carried out during 1986-1996. Sincethen IWM has developed numerical models ofrivers, estuaries and bays covering entireBangladesh and applied in national importantprojects.
IWM offers a wide range of specialist services inthe fields of water resources planning andmanagement as well as Hydrometricmeasurements, hydrographic and topographicsurveys and monitoring.
Integrated water resource managementClimate change modellingWetland and lakes managementIrrigation managementGroundwater managementUrban water managementClimate change modellingWater quality and ecologyFluvial hydraulics and riverRiver engineeringFlood managementIntegrated coastal zone managementCoastal hydraulics and morphologyPort and coastal structure managementEstuary and marine system managementOffshore structure and pipelinesWater quality investigationSoftware management and IT solutionsHydrogeological investigationsTopographic and hydrographic survey,sediment transport, water quality and hydrological,metereological field measurements, necessarylaboratory analysis and data management andmapping;Any other field of area which may be convenientlyand beneficially done through the facilities of IWM.
Areas of IWM ServicesAbout IWM
Regional TrainingHRD and R&D
Institutionalisation - self sustainingnon-profit organisationunder Trust Act
DANIDA Aided
DANIDA Aided
UNDP Aided
1D River ModelDeveloped For TwoRegions: SERM, GM
1D Morphological and
Salinity Modelling
Four More Regional ModelsDeveloped: NWRM, NCRM,NERM, SWRM
Morph., WQ, GW, UDand 2-D Modelling2-D Hydrodynamic
CommercialApplication
GIS Integration
Command Area DevelopmentCoastal Zone Management, IntegratedWater Resources Management
Ouasi 2D Morphology, Waves2-D CurvilinearInformation Technology
HydroinformaticsAdvanced hydrometry
WS Network ModellingRiver Erosion ForecastingLand Water &Infrastrcuture Management
Urban Water ResourcesAssessment
Total Quality Management
2002 To Date1997 20011994 19961990 19931986 1989 III I I I II I
IWM TRUSTSWMC TRUSTSWSMP - IIISWSMP - IISWSMP - I
Historical Development of IWM
IWM Board of Trustees
Dr. Zafar Ahmed Khan Chairperson
Secretary, Ministry of Water Resources, Bangladesh Secretariat, Dhaka
Mr. Md. Shahidur Rahman Member
Director General, BWDB, Dhaka
Mr. Mofizul Islam Raj Khan Member
Chief Engineer, Roads & Highways Department, Dhaka
Mr. Md. Wahidur Rahman Member
Chief Engineer, LGED,LGED Bhaban, Dhaka
Mr. Md. Salim Bhuiyan Member
Director General, WARPO, Dhaka
Engr. Md. Nuruzzaman Member
Chief Engineer, DPHE, DPHE Bhaban, Dhaka
Ms. Quamrun Naher Ahmed Member
Additional Secretary (Banking Policy), Ministry of Finance, Dhaka
Ms. O. N. Siddika Khanam Member
Additional Secretary, Planning Division, Planning Commission, Dhaka
Mr. Antoine Labrosse Member
Cheif Executive Officer, DHI, Agern Allé 5, DK-2970, Hørsholm, Denmark
Prof. Dr. M. Shamim Z Bosunia, PEng. Member
President, The Institution of Engineers, Dhaka
Prof. Dr. Md. Sabbir Mostafa Khan Member & Treasurer
Head, Deptt. of WRE, BUET, Dhaka
Dr. Gholam Mostofa Member
Chief Adviser, Prime Engineering Limited, Dhaka
Ms. Lailun Nahar Ekram Member
President-Asian Development, Technology Centre & MD – ECBL, Dhaka
Prof. Dr. M. Monowar Hossain Member-Secretary
Executive Director, IWM, Dhaka
Organogram of IWM
DeputyExecutive Director
(Opn)
RiverEngineering
Survey &Data
Management
Administration
Coast, Port& Estuary
Management
IrrigationManagement
ExecutiveDirector
Board of Trustees(BOT)
DeputyExecutive Director
(P&D)
StrategicPlanning
HumanResource
Development
QualityManagement
Research &Development
Accounts &Finance
InformationTechnology
BusinessDevelopment
Contents04
05
06
10
14
18
23
27
30
32
34
37
From the desk of the
Executive Director
Message from the Chairperson
River Engineering
Irrigation Management
Flood Management
Research & Development
Human Resource Development
Water Resource Planning
Coast, Port and Estuary
Management
Survey & Data Management
Information and Communication
Technology
Important Events
Message from the ChairpersonIt is a pleasure to convey my best wishes to Institute of Water Modelling (IWM) on thepublication of its Annual Report 2013. I am happy to observe that IWM has come along way to establish itself as a prime and leading institute in the country as well as inthe region, dealing with the complex technology of mathematical modelling,computational hydraulics and allied sciences and addressing numerous water-relatedproblems of the country.
Today's success of IWM was possible through the dedication of its skilled humanresources that has been made possible to achieve the result-oriented solutions ofcomplex hydrological, hydraulic and morphological problems of the river systems ofthe country. I have been informed that the year 2013 has been a year of continuedsuccess.
Geographical location of Bangladesh is quite unique. Due to this factor it has to endurefrequent and recurrent water related challenges. The country is extremely vulnerableto flood, drought, cyclone, river erosion, and other natural disasters. IWM developedmodels through use of state-of-the-art technologies and significant development hasbeen achieved in addressing number of these challenges. As a result government andnon-government agencies of the country as well as donors continue to consider IWMas one of the reliable institutions in devising sustainable solutions to thesecomplicated water-caused hazards.
As the Chairperson of IWM Board of Trustees, I am happy to know that new agenciesand departments are considering IWM in using mathematical modelling services fortheir projects. The Institute has already earned credibility and reputation to beconsidered as a reliable consultant to devise sustainable solutions to water relatedproblems.
I am happy to know that the Institute continues to organize seminars and workshopsto share its knowledge and experience with national and international community onthe matter of common interests. I firmly believe that the Institute will play animportant role in knowledge sharing for delta management in a changing climate.
It is encouraging to note that IWM has been continuously pursuing HRD to improve itsstaff resources with the latest update. I anticipate that the development partnerswould provide support to implement its planned HRD programmes in the comingyears. I am happy to learn that in the year 2013 IWM continued its on-going researchprojects and explored for new research opportunities with foreign Institutes andUniversities. I am pleased to note that IWM's linkages with other educational andresearch institutions within Bangladesh and abroad is continuing and growing byopening up new frontiers of collaboration.
I would like to extend my thanks to the members of the Board of Trustees of IWM fortheir generous contributions and continuous support over the years. I also extend mybest wishes to the committed staff of IWM for their efforts in enhancing the image ofthe institution and country. I wish IWM a bright future.
Dr. Zafar Ahmed KhanSecretaryMinistry of Water Resources&ChairpersonIWM Board of Trustees
From the desk of the Executive DirectorIt is a pleasure to reflect the achievements and the performance of IWM during theyear 2013. IWM passed another year of continued success in 2013 with morecredibility from its valued clients and users. International consultants anddevelopment partners as well as local users continued to entrust IWM for services inthe area of integrated water resources management and allied areas with theapplication of cutting edge technology in mathematical modeling, computationalhydraulics and allied sciences. We also continued to provide more emphasis on newareas of knowledge through research and studies in the water and environmentaldomain.
In 2013 IWM conducted a good number of mathematical modelling studies inconnection with water resources management and development. In riverine areasmodeling exercise on flood and erosion was the thrust areas. Important studiesinclude: improvement and upgrading of flood forecasting and warning system in thebasin scale as well as national scale, river restoration and improvement projects andmajor and minor river management studies. In coastal zones, important studiesincluded salinity intrusion due to climate change, study of marine drive road inCox'sbazar, study for the development of sea port at Rabnabad channel, study forupdating NWMP, scheme information and management system, feasibility study forSaidabad water treatment plant Phase III project, water availability, demand andadaptation option assessment of the Brahmaputra River basin under climate change,flood risk management in the Philippines, some water development studies inMalaysia and India.
IWM conducted BCCRF funded study regarding salinity Intrusion in Groundwater in thecoastal area due to climate change, groundwater resources study and IIS developmentof Pabna, Sirajgonj, Bogra, Gaibandha, Rangpur, Kurigram, Nilphamari and LalmonirhatDistricts, feasibility study of Titas river (Upper) re-excavation, Morphological Modellingof the Kalni-Kushiyara River system, pilot capital dredging of the Jamuna river,modeling support to Ganges Barrage study, morphological study of the upper Meghnariver in connection with Haria intake for Saidabad WTP Phase-III, railway bridge on theRupsha river and 5 large road bridges in the south west region of Bangladesh, surveyand preparation of inundation maps of fish rings under different water level,bathymetry survey and ADCP measurements of five rivers for conducting hydrotechnical investigations to derive hydraulic design parameters in Buriganga River.
To cope with the new development and capacity building, HRD unit organized 32training programmes for the staff of IWM and of clients at home and abroad in 2013.These programmes brought together about 260 participants from various disciplinesand divisions.
IWM continued its commitment on applied research including some fundamentalresearch in collaboration with universities and research institutes. The findings ofthese researches were disseminated through a number of important seminars andworkshops. IWM professionals continued to participate in international arena todevelop new bondage, networking and business development.
In the end, I would like to express my gratitude to all the valued clients, associates andpartners for their continued support and trust. I like to express sincere thanks andgratitude to the members of the Board of Trustees of IWM for their support andguidance. Finally, I thank and congratulate all IWM staffs who have taken the challengeof keeping IWM commitments towards maintaining high standards and bringinginnovative technical knowhow and means in facing the current and new challenges ofvarious uncertainties in the water development environment.
Prof. Dr. M. Monowar HossainExecutive Director
River Engineering (REN) Division operates in the fieldof river engineering and management, and uses state-of-the-art mathematical modelling technology in thefollowing disciplines:
Fluvial hydraulics and river morphologyErosion management (river training and bankprotection works)River dredging managementOfftake managementSediment management for hydraulic structures(dam, barrage, regulator, etc.)Road/bridge infrastructure managementHot water dispersion and cooling water intake inrivers for Power Plants.
The division inherits its strength from its involvement,for more than 15 years, in the field of morphologicalmodelling of more than 1,500kms of large, meanderingand braided rivers of Bangladesh including 3 majorrivers - the Ganges-Padma, the Brahmaputra-Jamunaand the Meghna.
In 2013, REN was involved in a number of projects inmorphological modelling of river systems, feasibilitystudy, capital dredging, river restoration study and anumber of road and railway bridge projects.
Major outputs of the bridge projects were todetermine suitable bridge location and alignment,impact on hydro-morphological condition of the riversdue to implementation of the bridges andrecommendation for mitigative measures like bankprotection/river training works, if any adversecondition were apprehended to take place.
River Engineering
06
Bangabandhu Multipurpose Bridge
Mathematical morphological modelling
for the Ganges Barrage Project
In order to utilize the Ganges water under India-Bangladesh
treaty, for benefit of the people living in Ganges Dependent Area
and to offset the negative impacts of the withdrawal of water
upstream of Farakka on agriculture, fisheries, and ecology of the
south-western region of Bangladesh, it is rather imperative to
construct a barrage across the Ganges within Bangladesh.
Engaged as sub-consultant, Institute of Water Modelling carried
out mathematical modelling for the feasibility study and detailed
engineering design.
With a view to assess the changes due to construction of the
large structure, comprehensive morphological modelling has
been carried out to develop two-dimensional (2D) morphological
models with different extents using the State-of-the-Art
modelling tool MIKE21C.
Feasibility study for re-excavation of
Titas River (Upper) under
Brahmanbaria district
BWDB engaged IWM to assess the
feasibility of the envisaged re-excavation of
the Titas River (upper) from technical,
socio-economic and environmental points
of view, and explore feasible options for
navigation, flood control and drainage
improvement as well as water resources
development and management in the
study area.
The approach of the study was to develop
fully dynamic hydro-morphological models
(one- and two-dimensional) for the river
systems encompassing mainly the Titas
(Upper)-Pagla River system, and
application of the models for several
options to make the Titas (Upper)-Pagla
River system as a perennial one.
A view of Titas River
07
Bed Level m(PWD)
Undefined Value
455000450000445000440000415000
Above 1612-169 - 127 -93 - 71 - 30 - 1-2 - 0
Below -2
Proposed Groyne
Proposed BankProtection Work
Proposed BankProtection Work
Divide Wall
Undersluice
Guide Bundh
Fishpass
Navigation Lock
In July 2013, IWM signed a contract
with Bangladesh Bridge Authority
(BBA) for monitoring of hydraulic &
morphological conditions of the
Jamuna River for the safety of the
River Training Works of Bangabandhu
Bridge for the period 2013 to 2017.
630000
631000
632000
633000
634000
635000
636000
637000
638000
639000
640000
641000
642000
643000
644000
645000
646000
647000
648000
649000
650000
Final layout of the Ganges Barrage and its ancillary structures
Sustainable river management plan for main rivers,
distributaries and tributaries in Bangladesh
BWDB engaged IWM to carry out mathematical morphological
modelling and investigation in connection with the sustainable
river management plan for main rivers, distributaries and
tributaries in Bangladesh.
IWM study mainly aimed to formulate solutions to the problems
through river modelling, enabling "intelligent" implementation of
dredging, realignment of navigation routes, protection of
vulnerable erosion/flood prone areas and mitigation measures to
keep off-takes open, etc.
The approach of the study was to develop
and apply fully dynamic hydro-morphological
models for the selected major river system.
One of the major tasks of the study was to
test the technical feasibility, i.e. hydro-
morphological aspects of "channelized"
options for the Jamuna, Ganges and Padma
rivers. This was done with a view to reclaim
land, which have been engulfed by the rivers
through the havoc of river bank erosion for
quite a long time.
8 major rivers were selected for the study:
the Brahmaputra-Jamuna, Ganges-Padma,
Meghna, Old Brahmaputra, Atrai, Pussur,
Baleswar and Karnaphuli rivers.
Simulated speed contour with vector of a reach of theOld Brahmaputra River near Islampur during peak ofmonsoon of a high flood event.
Rivers to be studied (Sustainable river management)
08
Islampur
Current speed (m/s)
Above 1.00
1.60 - 1.80
1.45 - 1 .60
1.20 - 1. 45
0.75 - 1.20
0.10 - 0.75
Below 0.10
High velocity
exceeding
the bermHigh velocity
exceeding
the berm
B A N G L A D E S HR I Y E R S Y S T E M
776500
776400
776300
776200
776100
776000
775900
775800
775700
775600
775500
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775300
775100
481500 482000 482500
775200
District HQ
Upazila HQ
International Boundary
Major River
Minor River
Major Bridge
Sundarban Reserved Forest
DHAKABay of Bengal
Water quality sampling
09
Water Resource Planning (WRP) Division is involvedbroadly in the following 4 areas:
Water resources assessment, planningand management at macro level,
Urban water management including water supply,sewerage and storm-water drainage
Wetlands and lake management and
Water quality and ecology including conservationof bio-diversity and sustainability of watereco- system.
WRP division uses a wide range of state-of-the-artmodelling tools for its work. These include: (i) MIKEBasin - for river basin planning, (ii) MIKE Urban - forwater distribution system modelling, sewer systemmodelling, (iii) MOUSE - for stormwater drainagesystem modelling and analyses, (iv) MIKE 11 - forhydrodynamic and water quality modelling in surfacewater systems, (v) MODFLOW - for groundwatermodelling.
Presently 73 professionals are working in WRP division.These experts include: urban water managementspecialists, water quality and environmental specialists,water resources specialists, modelling specialists andgroundwater experts. These experts have advancedtraining and work experience in water resourcesplanning and management studies including fieldinvestigations. Working with multi-sectoral teams hasfacilitated the experts to develop a holistic view onwater resource management in both urban and ruralareas.
During the year 2013, WRP carried out a number ofimportant projects. Notable ones among these includeFeasibility study for Saidabad Water Treatment PlantPhase III, assessment of state of water resources forupdating NWMP, mathematical modelling foridentification of water supply sources in 148 pourashavasof Bangladesh, establishment of groundwater monitoringsystem in Dhaka and adjoining areas.
Water ResourcePlanning
10
Testing aquifer through pumping
Assessment of state of water resources for
updating NWMP
IWM is supporting WARPO for assessment of state of
water resources. This 18-month study has been
formulated to carry out a comprehensive surface
water and groundwater assessment using
mathematical modelling tools, updated database and
recent information on water utilization and
withdrawal.
The study would cover the entire Bangladesh keeping
in view the Ganges-Brahmaputra-Meghna River
basins. Climate change and sea level rise projections
for the future are also considered.
Modelling systems and expected outputs for WARPO
resource assessment study.
Feasibility study for Saidabad water treatment
plant phase III project
The total water demand of the Dhaka City has been
calculated approximately at around 2,300 MLD in 2013,
which is predicted to increase to around about 5,500
MLD in 2035.
DWASA meets 78% of the water demand through
extraction from groundwater sources. Continuous
abstraction of groundwater will result in environmental
degradation as a natural consequence. Therefore,
immediate measures are required to shift from
groundwater sources to surface water sources for water
supply to Dhaka city. One significant measure would be
to implement the Saidabad phase III project which will
allow additional 900 MLD water supply to Dhaka.
Feasibility study for Saidabad water treatment plant
phase III project, carried out by Egis, France in
association with IWM, was launched in 2013. Capacity
of this plant will be 900 MLD. The major objective of the
study is to carryout detailed feasibility study of the
project which includes i) option study for intake
selection & WTP ii) assess dependable flows in Meghna
River iii) selection of water treatment process iv) outline
design of project components v) estimating cost of the
project.
Extensive use of 2-dimensional morphological model
has been done to investigate sedimentation at the
intake, river bank stability and options for bank
protection works. Network models have been used to
design the transmission lines. One dimensional model
has been used to generate long-term river discharge
data at the intake site for dependable flow calculations.
11
Models
Rainfall-runoff ModelLumped conceptual rainfall
runoff model NAM
Simulation of rainfall-runoff from differnt sub-basins under
different hydrologic conditions
Simulation of flow at various locations in the basin area
including at the boundaries of the HD model under various
scenarios
Simulation of flow and water level at various locations in the
basin area under various scenarios
Simulation and flow distribution of different branches of the
Ganges-Padma-Meghna-Jamuna-Old Brahmaputra-Surma-
Kushiyara Rivers
GW recharge, safe yield, and abstraction impacts on aquifer
system
GBM River Basins ModelMIKE Basin
River HD model
Morphological model of major
rivers
Groundwater model
unsteady One-dimensional
Hydrodynamic model MIKE 11
One-dimensional morphological
model MIKE11-Mor
Physically based MIKE SHE
model
Outputs
12
Water Supply Master Plan for Dhaka city &
greater Dhaka for the next 50 years
Appointed by DWASA, IWM and DevCon are engaged
in the preparation of Water Supply Master Plan for
Dhaka city. The goal of the project is to prepare a
Master Plan to indentify priority investment projects
and to recommend an appropriate institutional
framework.
In order to decrease the dependency on ground
water Dhaka WASA is planning to harness surface
water from the Rivers Padma and Meghna. Another
project is underway to bring water from well fields in
Singair and Savar.
Based on the agreed water supply strategy for the
next 50 years (up to 2060) the water supply master
plan will be prepared for short-term, medium-term
and long-term conditions. Each of the phases would
consist of a series of development projects. The
major components of the development will be
inclusion of the Surface Water Treatment Plants
(SWTP).
Transmission system has been designed for these
sectors to supply water from the plants to the
distribution system. The master plan also appraises
the current and future institutional requirement for
DWASA.
Water Management Improvement Project:
Scheme Information and Management System
SIMS is a Scheme Information Management System
to support BWDB engineers for planning, budgeting,
estimating and monitoring the operation and
maintenance works of FCD and FCDI schemes,
developed by IWM under WMIP for BWDB. SIMS will
also help the decision makers to determine the level
of scheme performance, agricultural, socio-
economical and environmental analysis as well as
screening the schemes and prioritization in
investment.
SIMS consists of 10 (ten) number of modules for
different purpose of scheme maintenance and
operational works namely (i) Scheme Inventory and
Mapping, (ii) Search/Query (iii) GIS Mapping, (iv)
O&M, (v) Monitoring (vi) Report, (vii) Metadata, (viii)
Water Management Organization (WMO), (ix)
Scheme Performance and (x) Decision Support
System.
SIMS database has been developed with the basic
information of Schemes, detail information of
physical features of embankment and polder,
drainage channel and Khal/Canal and hydrological
structures such as regulator, water control structure
and river bank protection. SIMS also includes
standard GIS mapping tools to support users for
preparing scheme maps using schemes spatial data.
SIMS has been developed for two levels of users one
is for the officials of BWDB head Office and another
is for BWDB field officials.
Standard GIS Mapping Tool for preparing Scheme Mapsin which physical feature data are dynamically linked.
Proposed Transmission Line for Padma Sector; carrying900 million litres a day to the western, northern andsouthern part of the Dhaka city
Prlyo Prangon
South Town
Keraniganj
Rajuk Jhilmil
Project
Kilometers0 0.4 0.8 1.6 2.4 3.2
N
Demra
Shyampur
BurigangaRiver
Ahasanullah Road
Demra
SabujbaghMotijheel
Khilgaon
TejgaonMohammadpur
Kafrul
Mirpur
Savar
Cantonment
Gulshan Badda
Pallabi
Sutrapur
Kotwall
Lalbagh
Hazaribagh
DhanmondiRamna
Dhaka-NarayanganjRoad
AtishDiponkorRoad
KamlapurRoad
Bashundhara River View
Manik miah Avenue
MirpurRoad
GreenRoad
MirpurRoad
KaziNazrulIslamAvenue
ShahidTazuddinRoad
South Avenue
MadaniAve
nue
NewAirportRoad
PragatiSharani
PragatiSharani
OldAirportRoad
CantonmentRoad
BegumRokeyaSarani
Mirpur 10
toMirpur 11Mi
rpur1 to Mirpur10
Dar-us-SalamRoad
MazarRoad
Lake-Road
Pantha Path Pantha Path
Bishow Road
NewEsk
atonRoa
d
Legend
Proposed Transmission Line (Dia in mm)
Bridge
Sector
Padma North
400
450
500
600
800
1000
1200
1600
1800
Thana Boundary
DMA
River/Khal
Road Network (Existing and Propose)
Kamrangirchar
13
Comprehensive sewerage masterplan for
Dhaka city
The Ministry of LGRD and Cooperatives and DWASA
in September 2008 produced a Development Project
Proposal for a comprehensive 5 year programme of
sewerage (and storm water) improvements under
the Dhaka Water Supply and Sanitation Project,
funded by the World Bank. The sewerage masterplan
is part of the programme.
Together with Grontmij A/S of Denmark, IWM
worked in devising a sewerage masterplan for Dhaka
city. The projected service area was divided into
independent sewersheds with collection network
and Sewerage Treatment Plants. The masterplan
introduced trickling filter technology of wastewater
treatment for its simplicity and low cost operation
and maintenance.
IWM independently designed 120 km length of
sewer collection pipe network for localities such as
Baridhara, Mohammedpur, Niketan, Banasri etc.
Safe drinking water source identification in 148
pourashavas
Potential source of water is still unidentified in most
parts of the country. Arsenic contamination, high iron
concentration, salinity intrusion, industrial pollution,
mining of groundwater, scarce rainfall, inadequate
study on water resources management etc. restricts
the availability of sustainable water source.
IWM in association with BETS, SARM and BCL carried
out the study to identify safe drinking water source
in selected 148 pourashavas in Bangladesh.
In the study, mathematical models for surface water
and groundwater source have been developed to
investigate the options for sustainable water source.
Alternative options like rainwater harvesting, Pond
Sand Filter and Infiltration Gallery are proposed
where found to be appropriate.
Pipe network and drainage models have been
developed for transmission and distribution system
design. This study also established surface water and
groundwater monitoring system and recommends
measures for maintenance and rehabilitation of
water supply, sanitation and drainage system. It also
includes capacity building of DPHE and Pourashava
officials through comprehensive training and
technology transfer programmes.
Banasri sewer collection network
Study area (pourashavas) shown in red dots.
Banasri SPS
Irrigation Management (IRM) Division of IWM provides services in the field ofirrigation & drainage, groundwater management for judicious and sustainablemanagement of land and water resources for Bangladesh and abroad. Its services aretargeted towards enhancement of agricultural productivity, while at the same timeretaining the environmental integrity and sustainability. The division mainly draws itsstrength from a group of qualified, efficient and dedicated professionals, havingexpertise in the field of irrigation management, groundwater modelling and host ofrenowned modelling software like MIKESHE, MODFLOW, MIKE11, MIKE-GIS, FEFLOW,CROPWAT, HYMOS etc.; supported by GIS, ICT and sophisticated data collectionsystem.
During the year 2013, IRM division primarily concentrated on delivering the services ofthe ongoing contracts, signed earlier, as well as procuring new assignments. Activitiesof the division were concentrated but not limited to action research on sault waterintrusion in groundwater in the coastal area, hydrogeological investigation inBarapukuria coal basin area, establishment of monitoring network and model study toassess saline water intrusion in groundwater in the coastal area due to climate change,groundwater resources study and IIS development for 8 districts of Rajshahi division,BMDA Ph-II, pilot study under the BIWRA project.
Some of important new contracts signed during the year include Survey &investigation of water resources management by mathematical modelling ofPanchagarh, Thakurgaon, Dinajpur and Joypurhat integrated agriculture developmentproject areas under BMDA and Groundwater resources availability study for SelangorState of Malaysia.
Irrigation Management
14
Irrigation in Baind Area, Rajshashi
Irrigation water being used for other purposes by the local people (increasing convence loss).
Establishment of monitoring network and
model study to assess salinity intrusion in
groundwater in the coastal area of
Bangladesh due to climate change
Under Climate Fund, IWM conducted a mathematical
modelling study for assessing salinity intrusion in
groundwater and surface water for two pilot areas of
coastal region of Bangladesh. The study area were 5
districts in Barisal division with 4867 sq. km and
Chittagong division with 950 sq. km.
In connection with this study, coastal water salinity
along with its impact to river water has been
investigated at first using the Bay of Bengal model
developed by IWM. Investigation on the interaction
of river /coastal water salinity to adjacent aquifer
water and spatial-temporal variation were assessed
by using groundwater salinity intrusion model. Two
separate groundwater models were developed for
the two pilot areas using FEFLOW. These models
were calibrated and the results were validated
comparing groundwater levels at some key locations.
The study projected salinity levels due to climate
change in the surface and groundwater of the project
area. A moderate scenario A1B was taken into
consideration to assess the impact of climate change.
The model result reveals that the river water salinity
will increase under climate change condition, and the
increased salinity will disperse into the aquifer upto a
distance of 1-2 km by 2050.
15
KACHUA
KAWKHALI
RAJAPUR
NALCHITY
BAKERGANJ
BAUPHAL
PATUAKHALI SADAR
BARGUNA SADAR
AMTALI
KALAPARA
GALACHIPA
TENTULIA
SONATOLA
PATHARGHATA
BHOLA
LOHALIA
DASHMINA
PAT UAKHALI
BHOLASADAR
BARISAL SADAR (KOTWALI)
MORRELGANJBHANDARIA
KOCHA
KANTHALIA
MATHBARIABAMNA
BETAGI
BALESWAR
21o50'0''N
22o0'0''N
22o10'0''N
22o20'0''N
22o30'0''N
22o40'0''N
90o40'0''E90o30'0''E90o20'0''E90o10'0''E90o0'0''E90o50'0''E
21o550'0''N
22o0'0''N
22o0'0''N
22o20'0''N
22o30'0''N
22o40'0''N
89o50'0''E 89o0'0''E 90o10'0''E 90o20'0''E 90o30'0''E 90o40'0''E
HARIN
GHA
BIS
HKHA
P
AIRA
PAN
DAB-1
DHULI
A
BIS
HKHALI
BURIS
WAR
AND
HARMANIK
KHAPRABHANGA
Legend
River
Thana
Simulated Salinity (mg/I)
300 - 500
300 - 1,000
1,000 - 2,000
2,000 - 3,000
3,000 - 4,000
4,000 - 5,000
5,000 - 6,000
6,000 - 12,000
Spatial distribution map of simulated groundwater
salinity (mg/l) on dry season 2012 for upper shallow aquifer
of pilot area-1.
Irrigation zoning map of the GW resources study area.
Pabna
Bogra
Gaibandha
Rangpur
LalmonirhatNilphamari
TBP Phase -l
Kurigram
Sirajganj
PIRDP
District Boundary
River
SW Schemes (Propose)
SW Schemes (Existing)
Mixed Zone (Proposed)
Deep Zone (Proposed)
16
Mathematical modelling study to assess
surface water and groundwater resources
for the two pilot areas in the coastal area
of Bangladesh due to climate change
Bangladesh Water Development Board under Climate
Change Trust Fund engaged IWM to conduct a
mathematical modelling study assess surface water
and groundwater resources for the two pilot areas in
the coastal region under present and future
hydrological conditions of the year 2030 and 2050
due to climate change.
The two pilot areas have different GW use pattern
and hydrological characteristics. The Pilot area-1 is
about 4867 sq km covering 15 upazilas in the
Southwest region and the Pilot area-2 is about 946
sq km over 8 upazilas in the Eastern Hilly region.
In order to achieve the study objectives, a
mathematical modelling study supported by
comprehensive data collection program was carried
out. The modelling software MIKE SHE and MIKE 11
were used for the study.
The study identified that under climate change
condition no significant change in maximum depth to
GW table in pre-monsoon season would occur. But
there will be noticeable increase in post-monsoon
recharge.
Groundwater resources study and IIS
development of Pabna, Sirajgonj, Bogra,
Gaibandha, Rangpur, Kurigram,
Nilphamari and Lalmonirhat districts
through mathematical model study
Engaged by Barind Multipurpose Development
Authority (BMDA), IWM carried out a
mathematical modelling study for groundwater
resource and development of Interactive
Information System (IIS) of Pabna, Sirajgonj, Bogra,
Gaibandha, Rangpur, Kurigram, Nilphamari and
Lalmonirhat districts.
Objective of the study was to assess the groundwater
resources, required number of DTW and STW as well
as to identify the areas suitable for DTW, STW or SW
and to formulate a sustainable irrigation plan.
Under this study, extensive field data collection
program was taken which includes test drillings,
aquifer tests, topographic and cross section surveys,
water quality tests and water level measurements.
The study aimed to bring potential area under
irrigation through conjunctive use of surface and
groundwater resources with the help of
mathematical modelling technique. The study
identified upazila-wise available groundwater
resources and recommended required additional
number of deep tube wells to utilize the resources in
a sustainable way. Social impact assessment,
environmental impact assessment and economic
study were also done for the recommended option.
17
Coastal erosion at Rabnabad channel under Patuakhali district.
17
18
Irrigation in Baind Area, Rajshashi
Coast, Port and Estuary Management (CPE) Divisionprovides its services for natural resourcemanagement, disaster risk assessment andmanagement, vulnerability and risk assessment ofecosystem services in the changing climate to delivereffective solutions for infrastructure development,food security and environmental protection.Integrated coastal zone management, salinityintrusion and zoning map, integrated management ofcoastal polders and tidal rivers, land reclamation,coastal morphology, erosion management, dredgingand sediment management for navigabilityimprovement of river and estuary, assessment ofwater availability and productivity in the changingclimate also falls under its arena of activities of CPEdivision. This divison also provide services in Planningand Design of coastal polders/embankment andcoastal erosion protection, Tidal River and sedimentmanagement, island and char development involving
participation of local community, temperature plumedispersion for selection of intake and outfall of powerplants are also included in its major disciplines.
CPE division uses state-of-the-art mathematicalmodelling tools for finding the solutions of coastalzone management issues at present and future, viz;MIKE21 Classic, MIKE21 FM and Delft3D for tidalhydraulics, storm surges, cohesive and non-cohesivesediment transport, river and harbor dredging andback filling rate, erosion and deposition pattern andmorphological changes in the coast, estuary and tidalrivers, MIK21AD, MIKE11AD for salinity intrusion inthe estuary and tidal rivers, temperature dispersionfor inlet and outlet location of power plant and waterquality in the coast and estuary, MIKE21 SW is usedfor wave climate and wave statistics for planning anddesign of polder embankments, river and sea portand navigation channels, shore line protectionmeasures. In continuation of the past, CPE carriedout a good number of projects in Malaysia in 2013.
Coast, Port & EstuaryManagement
18
1919
Assessment of the impact of anticipated
external drivers of change on water
resources in the coastal zone
Most significant external drivers that influence waterresources of the coastal zone of the Ganges deltawere identified through participatory approach.These are transboundary flow, population growth,land use change, climate change, water managementpractice and water infrastructure development,number of scenarios were also developed combiningthe drivers. IWM conducted a comprehensive studyto assess the impact of anticipated external drivers ofchange on water resources in the coastal zone usingstate-of-the-art modelling technology for differentscenarios. The change in trans-boundary flow in lastforty years has shaped the water availability in theGangetic delta. The coastal region of the Gangesdelta becomes saline in the climate change scenariothan the present condition. The increase ofprecipitation and rise of sea level in the changingclimate are likely to cause prolong drainagecongestion in the coastal polders with higher a depthof inundation.
The study analyzes the potentials of drainageimprovement by sub-polderization considering landlevel, canal system, road-network and tidalcharacteristics of peripheral rivers. Sub-poldering canprovide better drainage management involving localcommunity and reduces high/low land conflicts,opportunity for natural tidal movement into a sub-polder for raising of low-lying area, counteracting thesubsidence of soil and sea level rise, and easymaintenance of infrastructures. The study alsoassessed future population and domestic waterdemand.
Techno-economic feasibility and
environmental study for the development
of sea port at Rabnabad channel in the
Patuakhali district
For a smooth and balanced economic growth as wellas social development in the central coastal zone,establishment of a sea port was felt essential. IWMcarried out a techno-economic feasibility andenvironmental study in this respect.IWM study included site selection analysis of theproject to select and recommend the most preferablesite for the new sea port. Between the two sites,Rabnabad channel was found more suitable for thesea port. The selection was based on weightedscoring system. The best suitable alignment for anapproach channel is selected considering dominantcurrent direction, available navigation depth andrequirements for capital and maintenance dredging.Planning and design of approach channel and harborwere carried out considering 9m draft vessel.Although some negative impacts were identified inthe study, proper mitigation measures weresuggested to address them. The sea port study wasfound environment friendly, socially acceptable andeconomically viable.
Sea bed level topography of the study area.
19
Bed Level (CD)
Above -1
-4 - -1
-7 - -4
-10 - -7
-12 - -10
-15 - -12
-17 - -15
Below -17
Payra
Bandar
2020
Coastal hydraulics and morphological study
and design of protection measures for
marine-drive road in Cox's Bazar
In order to improve regional connectivity, fishingactivities, tourism and socio-economic developmentMarine-drive road was constructed from Cox's Bazarto Shilkhali in two phases. Since commencement ofthis project, few locations of the Marine-drive roadwere damaged due to sea wave action. Road &Highways Department entrusted IWM along withBUET, DHI (Denmark) and EML (Sri Lanka) to devise along-term erosion protection measures.
The study focused on physical processes that arecausing erosion of the Marine Drive and reasons offailure of the existing protective measures. Problemanalysis includes data on time series wind wave, seabathymetry, sediment and time series of satelliteimageries, modeling tools and consultation with localstakeholders. Wave dynamics, long shore and crossshore sediment transport were analyzed in assessingthe prevailing problems and devising protectivemeasures. Protective measures such as breakwater,groin, revetment, beach nourishment and sleepingdefense were investigated as long-term protectivemeasures. The study finds a combination ofrevetment and beach nourishment is the bestsolution for the protection of Marine Drive on longterm basis which is termed as "Sleeping Defense".
Coastal polder improvement in the
changing climate
The coastal embankment system has been gradually builtduring the last 50 years for intensification of agricultureand socio-economic development of coastal area. Theembankments were designed with no regard to cyclonesurges, and very little regard to waves. Crest height of theembankments was determined as "the maximum normalhigh tide" (as recorded during 1960-1968) plus afreeboard of 5 feet.
In the Coastal Embankment Improvement Project (CEIP-2012) of BWDB, the design crest level and side slope ofembankment for selected 17 polders were establishedconsidering storm surge level of 25 year return period,monsoon water level of 25 year return period, freeboardallowing 5 l/m/s overtopping, sea level rise, increase ofprecipitation and wind speed in the changing climate andland subsidence.
All 139 polders are not exposed to cyclonic storm surges,some interior polders are susceptible to overtopping bymonsoon water level. Considering this fact, sea facingpolders are designed considering storm surge level andinterior polder based on monsoon water level. Resilienceof the present drainage system of polders against climatechange was assessed and adaptive measures weredevised and suggested for implementations. BangladeshWater Development Board has under taken a project forimplementing climate resilient measures for 17 coastalpolders.
The main knowledge gap is to know the response of thepuerperal rivers and sediment distribution in the coastalarea in the changing climate.
Marine-drive road in Cox's Bazar
Criteria for designing of crest level of coastal polders
under CEIP, BWDB
20
Installation of Workhorse Sentinel ADCP
3
1
1
5
Surge level under CC Condition: Considering SLR (50 cm and increasing wind speed 10%)
Mean Sea Level
Design Embankment Crest Level
(Polder 35/1)River Side Country Side
Design Crest Level6.50 mPWDWave Due to Cyclonic Wind
Existing Crest Level, 3.80 mPWD
Existing Embankment
50 cm
Mean Tide Level
50 cm SLR
Wave Run-Up + Overtopping
Considering Overtopping 5 l/s/m
30 cm Land SubsidenceWave Run-Up = 1.66 m
Storm Surge Level = 4.54 mPWDSurge Height + Tide
Detailed design of all works related to
bypass channel from Timah Tasoh dam to
straits of Malacca
In order to protect Kangar city of Perlis against severeand frequent flooding, a bypass channel was plannedfor implementation to cater the excess flow from theTimah Tasoh Dam to Straits of Malacca. IWM wasentrusted to carry out hydraulic modelling study forthe detailed design of the bypass channel, tunnel ,weirs and tidal barrage. The study focused on theestablishment of the outflow from Timah Tasoh damat different return period from rainfall runoff, (ii) indetermining the channel type whether it is earthen orlined or both from dam to Malacca Strait, (iii)optimizing channel section at all segment, (iv)selecting the number of weirs and its optimumheight, (v) finalizing the shape of the tunnel (vi) andoptimizing dimensions of the tidal barrage.
An extensive hydraulic modelling has been carried outto achieve the desired outputs for the successfulcompletion of the study. Hydrological model wascarried out to finalize the 100 year return flow formTimah Tasoh Dam whereas hydrodynamic modelincorporating 26 proposed bridges was carried out tofinalize the channel type and sections, tunnel sectionand barrage dimensions.
A view of Timah Tasoh, Malaysia
21
Climate change and salinity intrusion in the
Southwest coastal zone of Bangladesh
In a changing climate, saltwater intrusion is expected toworsen the water availability in the low-lying coastal areasof Bangladesh. This study quantifies the relationshipbetween climate-induced changes in sea level,temperature, rainfall, changed river flows from theHimalayas, and the spread and intensity of salinization onriver water in the coastal zone for 2050.
The study takes into account the effects of B1, A1B and A2emission scenarios on temporal and spatial variation ofsalinity level. The findings indicate that climate change islikely to cause significant changes in river salinity in thesouthwest coastal area of Bangladesh by 2050. Thepresent freshwater availability in the south central zone islikely to be lost in A2 scenario. These changes are likely tolead to significant shortages of drinking water in thecoastal urban areas, scarcity of water for irrigation for dry-season agriculture, and significant changes in the coastalaquatic ecosystems. Changes in the availability offreshwater fish will likely affect the composition ofcapture fishery, although the increase in brackish waterwill enhance opportunities for brackish wateraquaculture.
Salinity isohaline (2 ppt) at base and climate changeconditions (35 cm and 67 cm sea level rise)
67 cm Sea LevelRise _ 2050
35 cm Sea LevelRise _ 2050
Base _ 2012
DistrictBoundary
Water Bodies
Salinity 2 ppt
Barisal
67 cm SLR(2050)
35 cmSLR2050
Base condition(2012)
Sufferings due to flood in Bangladesh
22
Flood Management (FMG) Division provides supportin hydrological assessments, designing ofhydrological monitoring networks and informationsystems, flood mapping, flood risk and damageassessment, flood insurance, real-time floodforecasting and operational water managementsystems, land use and climate change studies andflood mitigation planning including design andoperations of hydraulic structures. The divisionpossesses cutting edge technology, modelling toolson flood management, flood forecasting and climatechange issues.
The main strength of FMG is its sound experience inmaintaining and updating of all Regional Modelsincluding the General Model developed earlier in thethree phases of Surface Water Simulation ModellingProgramme. The division has been continuing toprovide technical support to Flood Forecasting andWarning Centre of BWDB in its routine floodforecasts in the past decades. The Divisiondeveloped the Ganges Brahmaputra Meghna (GBM)basin model which is capable of increasing the leadtime of flood forecasts as well as a tool to assessclimate change impacts and make water resourcesassessments on a regional context.
World wide accepted modelling tools such as MIKE11, MIKE GIS, MIKE FLOOD, MIKE BASIN, FLOODWATCH, MIKE CLIMATE CHANGE are being used inthe division to address a wide range of watermanagement issues. Other modeling tools such asSWAT and WRF are also being used for developingand assisting hydrological activities carried out bythe division.
Important projects carried out by FMG in 2013include Water Resources Management in Haor Areaof Bangladesh for JICA Study, ImplementationSupport Services for Kalni-Kushiyara RiverManagement Project, Integrated water ResourcesAssessment in Bangladesh with CSIRO of Australia,Water availability, demand and adaptation optionassessment of the Brahmaputra River Basin underclimate change under joint collaboration withICIMOD-HICAP, Flood Forecast and InundationModeling in Bagmati Adhwara Basin, India, Indexbased flood insurance etc. In addition, the divisioncontributed to train IWM professionals and clients inthe field of weather research and forecast model,disaster risk reduction and advanced mathematicalmodeling technology for flood managementapplications at home and abroad.
Flood Management
23
Village huts affected due to flood in Bangladesh
24
Support of regional and general modelling
tools in developing Bangladesh's water
resources sector planning
Updating of the Regional Models and General
Models is a continuous process which is being carried
out by IWM since 1991. These models provide the
basis for planning of all important water sector
projects of Bangladesh. The general and six regional
models comprises of all river systems of Bangladesh.
The regional models are Northwest Region Model
(NWRM), Northeast Region Model (NERM), North-
central Region Model (NCRM), Southeast Region
Model (SERM), Southwest Region Model (SWRM)
and Eastern Hill Region Model (EHRM) as shown in
the figure.
The General Model (GM) comprises of all major river
systems of the country which are in the six regional
models (RM). The Regional Models comprise of
hydrological (rainfall-runoff) model and a
hydrodynamic (river/channel/floodplain hydraulics)
model. Both rainfall runoff model (NAM) and
hydrodynamic (HD) model are calibrated and
validated against observed data. MIKE 11 of DHI
were applied in developing these models. The
modelling tools were extensively used in several
projects at home and abroad.
Upgrading flood forecasting system for
increasing lead time introducing location
specific flood warning
In order to strengthen the existing flood forecasting
system and capacity development of FFWC, a
research & prediction modelling study was
undertaken jointly by FFWC and IWM. The overall
objective of the study, CDMP II, is to improve flood
forecasts to meet the demand of end users by
increasing lead-time and expanding forecasts to
places of national interest.
In the study, several tools were developed/ updated
including Ganges Brahmaputra Meghna (GBM)
Model, Weather Research and Forecast (WRF) Model
of GBM basin, and a database with real time data
aggregation and processing system. The study
developed an automatic technique of estimating
cross-boundary inflow of major rivers using the
stated tools. Besides, a system of generating flood
forecast at the target structures has been devised
under the study.
GBM Basin model for boundary flow estimation
Plot of automatically estimated boundary flow
Automatic Boundary Forecast
Real Time
Discharge(m3/Sec)
5 days Forecast
Bahadurabad, Jamuna
Hardinge Bridge, Ganges
06-Oct
35000
30000
25000
20000
15000
10000
5000
0
09-Oct 12-Oct 15-Oct 18-Oct
Amalshid, Kushiy ara
TIBET, CHINA
NEPAL
MYANMAR
INDIA
INDIA
INDIA
Barak Basin
Brahmaputra Basin
Ganges Basin
Regional Models in
NERMNWRM
NCRM
SWRM
SERM
EHRM
Bangladesh
Hardinge Bridge BahadurabadAmalshid
BANGLADESH
BAY OF BENGAL
North Central RegionNorth Eastern RegionNorthWest RegionSouth East RegionSeuthWest Region
Eastern Hilly Region
50 50 Kilometers0
N
LEGENDInternational Boundary
River Network
Water level (BWDB)BWDBRegistering Stations
Discharge withWL (BWDB)
B A Y O F B E N G A L
Hydrological Boundary
Flood risk management project for Cagayan de
Oro river in the Philippines
IWM carried out mathematical modelling study for the Flood
Risk Management Project for the Cagayan De Oro River in
Mindanao Island of Philippines.
IWM services for the study included data collection from
secondary sources, analyzing and processing data, with the
data developing hydrological & hydrodynamic models,
simulation of models to generate runoffs & water levels and
identify impacts, reviewing inundations. MIKE 11 software
was applied in developing these models. Modelling activities
included computation of the rainfall-runoff by MIKE11-NAM
and computation of the river flows and water level by
MIKE11-HD.
IWM consultancy services also included hydraulic analysis
for updating the earlier feasibility study.
The objective of the JICA funded project is to mitigate flood
risk in Cagayan de Oro River Basin through the construction
of flood protection measures, and thereby contributing to
the sustainable and stable economic development in
Cagayan de Oro River Basin.
Cagayan De Oro River in Mindanao island of Philippines
25
Study area and catchment delineation
Cagayan de Or - 2
Cabula Birdge
Cagayan de Oro - 1 Bubunauan - 3
Bubunauan - 2
Bubunauan - 1
Samalauan
Bulanog - 3
Bulanog - 2
Batang - 2
Batang - 1
Sangaya - 1
Sangaya - 2
Pikalin
Bulanog - 1
Lumalaong
Tagite
Kalawaig
Tolohan
Mamala
26
Land level survey by using Total Station
The surveyed data is promptly processed andanalysed in the field and thus maintains a near-onlinequality control procedure.
In the office the data is further verified by the seniorprofessionals before transmitting it to the users andarchived in the database for future applications. Inaddition to collecting data to support modellingactivities, SDT also supports different Governmentagencies in implementation of dredging activities inthe major rivers.
A set of motivated staff comprising of highly skilledprofessionals and field surveyors are engaged for thejobs. The knowledge and skills of the staff arecontinuously updated and upgraded through on-the-job training, discussions, seminars and workshops athome and abroad.
Survey & DataManagement
27
Dredging in the Gorai River
Survey and Data (SDT) Division conducts hydrographicand topographic surveys including collection of waterquality and sediment data to support scientificallybased management of river erosion, flood andirrigation, water supply and sewerage system. SDT alsosupports planning and implementation ofinfrastructure in communication sector, urbandevelopment and dredging.
The specific areas of SDT activities are: hydro-morphological survey including water quality andsediment sampling and analysis in the rivers andestuaries, flood plain topography and engineeringsurvey.
SDT uses the latest survey equipments like TotalStation, RTK-GPS, DGPS, Echo sounder and AcousticDoppler Current Profiler (ADCP) along with specializedcomputer software and facilities to conduct thesurveys.
Beel and fish-sanctuary survey and
preparation of inundation maps of fish
rings under different water level
As a part of the research program aimed to improve
the well-being of aquatic agricultural system-
dependent people in selected 4 villages of
Bangladesh, Worldfish assigned IWM to conduct land
level and fish-well survey and preparation of
inundation map of fish-well at different water level.
As a part of the survey programme, IWM conducted
data collection campaign around the study area of
Rajapur. The data collection campaign was conducted
successfully during June 2013 to August 2013 for
conducting the research activities.
Bathymetry survey and ADCP
measurements for hydro technical
investigations to derive hydraulic design
parameters in Buriganga River
Bangladesh Railway with joint venture of CANARAIL,
DBI, SMEC and AEC engaged IWM to carry out the
survey at five river crossings (Buriganga, Dhaleswari,
Arial Khan, Madhumati and Gomuti) to facilitate the
hydro technical investigation to derive hydraulic
design parameters for bridge crossings of major
waterways and for establishing river training works
and bank protection requirements.
The data collection campaign was completed during
August 2013 to mid September 2013. The important
features included in the survey are traverse survey to
establish control points around the study area, river
bathymetry, ADCP observations.
Based on the decision of the Joint Communiqué,
between Bangladesh and India with the help of Asian
Development Bank, some investment projects was
identified and prioritized to connect regional and
Trans-Asian Railway corridors.
Inundated area Vs. Water level Curve
Bathymetric survey by using RTK -GPS at Buriganga river
Discharge observation by using ADCP and RTK-GPS at Dhaleshwari.
Inundated Area vs. Water Level Curve of the survey area (July, 2013)
0-0.25 0.00 0.25 0.50 0.75 0.00 1.25 1.50
Level (m MSL)
1.75 2.00 2.25 2.50
InundatedArea(squaremeter)
900000
800000
700000
400000
500000
400000
300000
200000
100000
28
Survey for detailed design, social and
environmental studies in construction of Urir
Char - Noakhali Cross-Dam project
Under Bangladesh Climate Change Resilience Fund a
study project was untertaken to prepare the
engineering design and social and environmental
studies of the proposed Urir Char -Noakhali Cross
dam. It is expected that the proposed cross dam will
reclaim 9336 ha of landmass within 7 years on
completion of the cross dam.
Engaged by the World Bank, IWM conducted huge
data collection campaign around the Urir Char and
Jahajer Char island in November and December 2013.
The important data collection features included BM
fly to establish a consistent datum around the study
area, river bathymetry, bank topography, water level,
observation of flow, sediment sampling for the total
sediment concentration and bed material analysis
along the proposed cross dam.
The survey was conducted using state-of-the art survey
equipment like RTK-GPS, DGPS, Total Station, Acoustic
Doppler Current Profile, Echosounder, pressure sensor
and optical level. The data has been processed in the
computers and provided to the study team successfully
within the stipulated time.
Observed discharge and water level at Urir Char- Char Elahi channel.
29
Topographic survey by Total Station at Urirchar.
Discharge at Urir Char-Char Elahi (03/12/2013)
Discharge
35000
15000
5000
0
-5000
-10000
-15000
-20000
-15000
Water Level
5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00
4.5
1.5
2.5
1.5
0.5
-0.5
-1.5
-2.5
-1.5
Time
Discharge(m
3/s)
WL(mPWD)
29
Sponsored
Own Fund
Research
Collaborative
Research
Funded
Research
Projects
Research
& DevelopmentIWM has an exclusive Research & Development Unit thatundertakes significant initiative in research in following areas:
Application of water modelling/ computational hydraulicsCoastal engineeringInformation Technology (IT)Marine scienceOceanographyRiver morphologySediment transportSocial and environmental sciencesGroundwaterGroundwater salinity intrusion in groundwater
The organization is bound by a research policy that can beshown schematically below:
Collaborative research on flood
resilience in urban area- CORFU:
IWM is one of the partner organizations in CORFUwhich is a major project involving 15 European andAsian institutions, funded by a grant from theEuropean Commission, Seventh FrameworkProgramme. The overall aim of CORFU is to enableEuropean and Asian partners to learn from eachother through joint investigation, development,implementation and dissemination of short tomedium term strategies that will enable morescientifically sound management of theconsequences of urban flooding in the future.
Determination of hydro-geological
parameters for SW and SE regions of
Bangladesh, phase-II:
The objective of the project is to estimate hydro-geological parameters and groundwater quality forSW and SE regions of Bangladesh for groundwaterresources assessment, management and modelling,determine approximate function of the interface offresh and saltwater in the coastal zone.
Discharge Measurement through ADCP atKazibacha River
30
Data collection and updating of General,
Regional & BoB models
The main objectives of the project are to identifygaps in data collection under BWDB regular program,install gauges at such critical boundary stations andcarry out updating of the regional models for thehydrological years 2007-08, 2008-09, 2009-10 and2010-11 utilizing collected and secondary data.
Assessment of aquifer vulnerability in
selected upazilas of Khulna region
The specific objectives of the study are- collection ofsalinity data on selected tube wells at extreme watertable conditions in the study area, preparation of themap showing aquifer vulnerability based on salinitylevel and identification of suitable groundwaterpockets based on people's perception.
Assessment of variability of seepage &
percolation loss in irrigated rice
The sole purpose of this research project is to review thepresent practice of assuming a constant S&P rate duringcrop growth period of irrigated rice.
A study on the effect of oblique flow and
char movement in river bank and bank
protection work
This study is undertaken to assess- the effect ofoblique flow on the natural bank of main channeland on the bank protection work of the mainchannel, the comparison among different bankprotection works for critical angle of flow, the effectof migration of char for critical angle of flow,variation of scour depth due to oblique flow in themain channel, additional erosion due to confluenceflow and effect on launching apron due to obliqueflow.
Joint action research on salt water
intrusion in groundwater in the coastal
area:
This extensive research focuses on the- assessmentof the extent of salinity intrusion in the aquifersystem of the study area, aquifer vulnerability withrespect to present extent of saline front line,impacts of sea level rise due to climate change inthe groundwater salinity distribution, identificationof fresh water aquifers and fresh water pockets,changes in salinity distribution for variousdevelopment scenarios, quality parameters ofsurface and groundwater, identification of disasterresilient options and its social acceptability,development of human resources.
Study area
31
Salinity distribution of GW (deep aquifer)
Observation WellEvaporation StationRainfall StationHydrometric StationUpazila BoundaryRiverModel Area
Legend
Legend
Tubewell Location Salinity (ppm)
Upazilla <600
600 - 1750
1750 - 3450
3450 - 5500
>5500
Information and Communication Technology (ICT) unit ofIWM provides technologicl and GIS support formathematical modelling studies and survey activities ofIWM. Following is the brief information about some of ICTactivities in 2013.
Resource profiles, extrapolation domains
and land-use plans
In this project a geo-referenced data-base for the
coastal zone of Bangladesh has been established to
facilitate out-scaling of technologies through
identification of target domains and land use
planning. Various hydro-meteorological data have
been processed, formatted and analyzed In addition,
Rainfall and evaporation stations map, River system
Map, Salinity Map, Digital Elevation Model etc have
been prepared. Finally land suitability map has been
prepared for agricultural crop in selected polder of
coastal zone of Bangladesh.
Salinity information system in coastal zone
of Bangladesh
Desktop based computer application has been
developed under this project to examine salinity
dynamics due to Climate Change. Salinity surfaces
have been created for different climate change
scenario. Salinity in coastal zone has been presented
in raster format that can easily be used to compare
salinity intrusion for different climate change
scenario.
Information &
Communication TechnologyJoint Action Research on salt water intrusion
in groundwater in the coastal area
Under this project existing data have been collected
and reviewed. It has been prepared various maps,
information and concerned study reports from
secondary sources; Impact assessment of abstraction
and possible salinity intrusion in the study area;
Analyses of data for model input; Consistency
checking of secondary data following standard
methods; prepared resource mapping.
Rating
Rating
Range
Range
Rating Range Rating Range
Rating Range
Rating Range
GA
L D
I
T
2.5 (>1.0 m)
5 (0.75 - 1.0 m)
7.5 (0.5 - 0.75 m)
10 (<0.5 m)
2.5 (>2.25 km)
5 (1. 5 - 2.25 km)
7.5 (1 - 1.25 km)
10 (<1 km)
2.5 (<0.5)
5 (0. 5 - 1.5)
7.5 (1.5 - 3)
10 (>3)7.5 (>20 m)
5 (10 - 20 m/d)
7.5 (10 - 20 m/d)10 (Unforced Aquifer)
River
Upazila Boundary
Study Area
Projection : BTM, Everest 1830
Joint Action Research Project
Legend
Manirampur
PhultalaKhanJahanAli
Khalishpur
KhulnaSadar
Dumuria
Keshabpur
Tala
Paikgachha
Batiaghata
Manirampur
PhultalaKhanJahanAli
Khalishpur
KhulnaSadar
Dumuria
Keshabpur
Tala
Paikgachha
Batiaghata
Manirampur
PhultalaKhanJahanAli
Khalishpur
KhulnaSadar
Dumuria
Keshabpur
Tala
Paikgachha
Batiaghata
Manirampur
PhultalaKhanJahanAli
Khalishpur
KhulnaSadar
Dumuria
Keshabpur
Tala
Paikgachha
Batiaghata
Manirampur
PhultalaKhanJahanAli
Khalishpur
KhulnaSadar
Dumuria
Keshabpur
Tala
Paikgachha
Batiaghata
Manirampur
PhultalaKhanJahanAli
Khalishpur
KhulnaSadar
Dumuria
Keshabpur
Tala
Paikgachha
Batiaghata
20 10 0 20
km
Collaborative Research on Flood Resilience
in Urban Area (CORFU)
CORFU is composed of four major work packages viz.
urban growth modelling, hydraulic modelling,
damage assessment and strategy development.
Project work has been emphasized with GIS and RS
procedure especially using urban growth modelling
and flood damage assessment through using flood
damage tools.
Research with CSIRO, Australia on
integrated water resources assessment in
Bangladesh
In this project different types of GIS activity including
Salinity analysis and mapping; catchment
delineation; watershed analysis; preparation of base
map, hydrological map, Topographic map preparation
have been conducted. These outputs have been used
to analysis the study objectives.
SW-KJDRP: Monitoring & evaluation of the
hydrological & morphological conditions of
rivers & drainage problems of beels in the
KJDRP area for the planning of drainage
improvement measures
Activities include Preparation of GIS based contour
maps of basin, flood depth map, map showing
erosion/deposition of tidal basin topography; assist
the study team; preparation of maps for workshops
and reports; DEM comparison for different years.
Kalni-Kushiyara river management project
by using mathematical model and state-of-
the-art survey technique
Major tasks under this project include collecting and
obtaining information on the ownership of land
proposed to be acquired for the project and assess
settlement and land acquisition requirements.
Preparation of the resettlement and land acquisition
action plan on the CS/RS mouza map. Project also
needs other activities like base map preparation,
digital elevation model, Satellite image processing.
Technical and financial proposal for index
based flood insurance product for Sirajganj
district - phase II
Important activities of the project include
preparations of GIS map showing basic geo-physical
settings of the selected zones, Digital elevation and
image processing.
Water governance and community based
management of water resources
In this study Participatory GIS (PGIS) tool has been
used in water resources management and
Participatory Resources Mapping have been
conducted. Total five number of PRA maps has been
prepared for each study site. These are internal canal
map, flood inundation map, three cropping pattern
maps (for Kharif-1, Kharif-2 and Rabi Period). In
addition one Influence zone map has been prepared
to understand how and where PRA has been
conducted with coverage area.
Development phase of water management
infrastructure in Bhola district
Different GIS and RS based work has been done in
this project such as preparation of landuse map,
bankline shifting analysis and erosion-accretion
analysis. Landuse map has been prepared based on
Landsat satellite images through remote sensing
analysis and image classification technique. Landsat
images have also been used for bankline shifting
analysis and erosion-accretion analysis for the Period
2003-2013, 2008-2014 and 2013-2014.
Erosion-accretion status along left bank of Bhola
Island (2003-2013)
33
Human ResourceDevelopmentTraining and Technology Transfer is a regularactivity of IWM aims at updating its resourceswith the new knowledge and technology and tocope with the new challenges in water sector.Following is the brief on the HRD programmesconducted in 2013.
FEBJAN MAR APR MAY JUN
Knowledge
/experience
sharing on
MIKE 21FM
Training on
MIKE 3 -HD &
Salinity
Modelling.
Training on
ArcGIS.
Knowledge
/experience
sharing on
MIKE 21C at
DHI
Training on
MIKE 11.
Training on
ECOLAB at
Dhaka.
Training on
MIKE 21C.
Training on
MIKE URBAN.
Training
workshop on
research
proposal
writing, journal
paper writing,
scientific
presentation &
plagiarism
detection.
Mathematical
Modelling on
Groundwater
Flow and
Saline Water
Intrusion in
the Coastal
Area of
Bangladesh
due to Climate
Change
Training on
Climate
Change &
Emerging
Challenges in
Ensuring Food
Security.
Administrative
training for
IWM staffs
Knowledge
/experience
sharing on
MIKE URBAN
at DHI
Basic GIS
Training on
ArcGIS 10 for
SoB.
Training on
Mathematical
Modeling and
Survey Work
under Pilot
Capital
Dredging.
Training on
Management
Information
System (MIS)
Training for IWMStaff
Training forClients
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34
Training at IWM for staff development
JUL AUG SEP OCT NOV DEC
Basic Training
for Junior
Engineers.
Management
internship at
DHI under
women's water
fund.
GIS Web
Application
Development at
ICIMOD, Nepal.
Orientation
course for
Junior
Engineers (1st
batch).
Training on
Capital
Dredging of
River system in
Bangladesh.
Groundwater
salinity
modelling using
FEFLOW.
Training &
Workshop on
ADCP at San
Diego, USA.
Groundwater
Salinity
Modelling
Internship
training for
WRE students
of BUET.
Training on
Basic ArcGIS.
Training on
Bathymetric
Survey using
HyPack
Software.
Training on
Storm Surge
Modelling using
MIKE 21C.
Training on
MIKE 11.
Satellite
Remote Sensing
application for
Water
Resources
Management.
Training on
Advanced
ArcGIS.
Training on
Discharge
Measurement
by ADCP
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35
Participants in the workshop organized by IWM
36
37
Workshop on knowledge sharing for delta
management in a changing climate
Institute of Water Modelling and Partners of Delta
Alliance Bangladesh Wing organized the workshop on
30 November 2013 in Dhaka. Shaikh Altaf Ali, Senior
Secretary, Ministry of Water Resources graced the
occasion as Chief Guest while Md. Azizul Haque,
Director General, Bangladesh Water Development
Board and Mr Carel de Groot, First Secretary/ Expert
Water, Embassy of the Kingdom of the Netherlands
were Special Guests of the occasion. The workshop
was chaired by Prof. Dr. M. Monowar Hossain,
Coordinator, Delta Alliance Bangladesh Wing and
Executive Director, IWM.
Workshop on sustainable water
management
Dr. A.F.M. Afzal Hossain, Deputy Executive Director
(P&D) and Sardar M Shah-Newaz visited Pakistan to
participate in the International Workshop on
'Sustainable Water Management' during 28-30
October2013 held in Islamabad, Pakistan. The
workshop was organized by OIC Standing Committee
on Scientific and Technological Cooperation
(COMSTECH). In the workshop Dr. Hossain and Mr.
Shah-Newaz acted as Resource Persons.
Workshop on Saidabad WTP Phase III
feasibility study
A workshop was held on 26th September 2013 at
Hotel Sonargoan regarding overview of "Saidabad
WTP Phase III Feasibility Study". Hon'ble Minister for
Information Engr. Hasanul Haq Inu graced the
occasion as Chief guest while Mr. Bhuiyan Shafiqul
Islam, Secretary, Ministry of Planning, Mr. K.M.
Mozammel Hoq, Addl. Sec., Ministry of LGRD&C
attended as Special Guests. The occasion was chaired
by Engr. Taqsem A Khan, MD, DWASA.
Important Events
Guests on dias in the workshop on Knowledge Sharing
for Delta Management in a Chaning Climate
37
38
Workshop on establishment of monitoring
network and mathematical model study to
assess salinity intrusion in groundwater in
coastal area of Bangladesh due to climate
change
BWDB and IWM jointly organised the workshop at
BIAM Auditorium, Dhaka on 08 September 2013.
Shaikh Altaf Ali, Senior Secretary, MOWR graced the
workshop as Chief Guest. Mr. Didarul Ahsan,
Managing Director, BCCT and Additional Secretary,
MOEF was present as Special Guest. Mr. Md. Azizul
Haque, Director General, BWDB chaired the
occasion.
Workshop on drainage congestion and
improvement of polders under Satkhira
DistrictA workshop on drainage congestion and
improvement of polders 1, 2, 6-8 and 6-8 (extension)
under Satkhira district was held on 9 February 2013.
Dr. A.F.M. Ruhul Haque MP, Hon'ble Minister for
Health and Family Welfare graced the occasion as
Chief Guest. Engr. Sheikh Mujibur Rahman MP,
Satkhira 1, Alhaj M A Jabbar MP, Satkhira 2 and Mr
Md. Afzal Hossain, Addl. Director General (Planning),
BWDB was present as Special Guests. The
programme was chaired by Dr. Muhammad Anowar
Hossain Haoladar, Deputy Commissioner, Satkhira.
Workshop on detailed feasibility study in
connection with protection of Ramgati and
Kamal Nagar upazilla and adjacent areas
under Laxmipur district from the
continuing erosion of the Meghna River
The workshop was held on 31 March 2013 at
Laxmipur. Begum Faridunnahar Laily, MP graced the
occasion as Chief Guest. Alhaj A.K.M Shahjahan
Kamal, Administrator, Laxmipur Zila Parishad, Alhaj
Abu Taher, Mayor, Laxmipur Pourashava and Md.
Abdul Mannan, Addl. Director General (Planning),
BWDB was present as Special Guests. Mr. A.K.M
MIzanur Rahman, Deputy Commissioner, Laxmipur
chared the occasion.
eWater's Source 2013 conference in
Australia
Prof. Dr. M. Monowar Hossain, Executive Director,
IWM visited Australia during 19—20 September 2013
to attend the ‘Source 2013 Conference’ organized by
eWater Australia and held at Gold Coast. The
Executive Director presented keynote paper at the
conference titled ‘Challenges of IWRM in South Asia:
Bangladesh’.
Contract agreement for design and
construction supervision of IWM
Headquarters building
A contract agreement was signed between IIWM and
VolumeZero Ltd. on 23 July 2013 at IWM for the
design and construction supervision work of IWM
Headquarters Building at Sector 15, Uttara Phase-III,
Dhaka.
Prof. Dr. M. Monowar Hossain, Executive Director,
IWM and Mr. Md Foyez Ullah, Managing Director,
VolumeZero Ltd signed the contract agreement on
behalf of their respective organizations. The signing
ceremony was also attended by Senior professionals
of IWM and VolumeZero.
Exchange of contract agreement between IWM and
VolumeZero Ltd.
Executive Director, IWM (far left) with Prof. Gary Jones (2ndfrom left), EO eWater Australia, Prof. A.K. Gosain, Dept ofCivil Engg., IIT, Delhi (3rd from left) and IWMI representative(far right).
38
VISITS TO IWM
Executive Director hands over
IWM Crest to Professor Dr.
Shamsul Alam, Member, GED,
Planning Commission during his
visit to IWM on 01 June 2013.
Executive Director hands over IWM
Crest to Prof. Dr. Abdus Sattar
Mandal, Member, Agriculture,
Water Resources and Rural
Institutions during his visit to IWM
on 19 June 2013.
Executive Director, IWM hands over
IWM Crest to Md. Jahir Uddin
Ahmed (ndc), Chairman, BADC
during his visit to IWM on 02 July
2013.
Executive Director hands over IWM
Crest to Prof. Dr Muhammad Fazlul
Bari, Member, Physical
Infrastructure Division , Planning
Commission during his visit to IWM
on 08 June 2013.
Executive Director, IWM hands over
IWM Crest to Dr. Md. Shamsuddoha
Khondakar, Chairman, BIWTA during
his visit to IWM on 04 July 2013.
Acronyms
ADCP Acoustic Doppler Current Profiler
BAEC Bangladesh Atomic Energy Commission
BUET Bangladesh University of Engineering and Technology
BIWRA Banlgadesh Integrated Water Resources Assessment
BMDA Barind Multipurpose Development Authority
BWDB Bangladesh Water Development Board
CDMP Comprehensive Disaster Management Programme
CEGIS Centre for Environment and Geographical Information Service
CEIP Coastal Embankment Improvement Project
CORFU Collaborative Research on Flood Resilience in Urban areas
CSIRO Commonwealth Scientific and Industrial Research Organization
CWASA Chittagong Water Supply and Sewerage Authority
DeVcon DevConsultants Limited
DHI Danish Hydraulic Institute
DWASA Dhaka Water Supply and Sewerage Authority
DPHE Department of Public Health Engineering
FCD Flood Control and Drainage
FCDI Flood Control, Drainage and Irrigation
FFWC Flood Forecasting and Warning Centre
IWRM Integrated Water Resource Management
JICA Japan International Cooperation Agency
KJDRP Khulna-Jessore Drainage Rehabilitation Project
LGRD Local Government and Rural Development
NWMP National Water Master Plan
RHD Roads and Highways Department
SoB Survey of Bangladesh
SIMS Scheme Information and Management System
STP Sewer Treatment Plant
WARPO Water Resources Planning Organization
WMIP Water Management Improvement Project
WMO Water Management Organization
40
SOB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
2010
9
6
5
7
8
11
7
6
4
5
6
7
6
4
5
96
2011
10
7
6
7
8
12
7
7
5
5
7
8
8
4
6
107
2012
12
8
6
9
7
13
7
8
6
5
7
9
8
4
7
116
2013
13
9
7
9
7
13
8
9
7
6
8
10
8
4
7
125
Field of Expertise
Climate Change
Bangladesh Bridge Authority
BMD
A
TTU
USA
NA
HR
IM
Mal
aysi
a
PS
11%
SS
14%
AS
18%
JS
21%
JE
36%
Professional Staff in 2013 (regular)
Female and male staff ratio in 2013
Male
88%
Female
12%
11
80
13
92
25
115
24
170
32
260
2009 2010 2011 2012 2013
House 496, Road 32, New DOHS, Mohakhali, Dhaka-1206, BangladeshTel : (88-02) 8822105-6, 8824590-1, 8827902, Fax : (88-02) 8827901E-mail : [email protected], Website : http://www.iwmbd.org