Cess Final ion

8/6/2019 Cess Final ion

1/34

Welcometo

Ph.D. Research ProposalPresentation

N. SRIDHARResearch Scholar

Dept. of Geography & Geo-InformaticsUniversity college of Science

Osmania UniversityHYDERABAD - 500007

by -


2/34

Application

of

Remote Sensing and GISin

Urban Microclimates A case study of Greater

H derabad


3/34

Application of Remote Sensing and

GIS in Urban Microclimates- A case study of Greater

Hyderabad.


4/34

Remote Sensing Remote sensing is the acquisition of information about

an object or phenomenon, without making physical

contact with the object

Active Remote Sensing : Camera without flash

Passive Remote Sensing : camera with flash


5/34


6/34


7/34


8/34

Geographical Information System (GIS)

A system of hardware, software, and procedures designed

to support the capture, management, manipulation,

analysis, modeling, and display of spatially reference data

for solving complex planning and management problems

A computer system capable of assembling, storing,

manipulation, and displaying geographically referenceinformation.


9/34


10/34


11/34


12/34


13/34

Definition

A microclimate is a local zone where theclimate differ from the surroundingarea.

Physical state of the atmosphere close to avery small area of the earth's surface

Urban microclimates are discrete regions inthe urban canopy layer (UCL) whereradiative and weather variable hold to aconsistent pattern


14/34

Variable influences

Solar intensity, Levels of pollution, Vegetation

cover, Wind flow direction and speed, soil type

and Season.

Construction material used in buildings and

other urban landscapes features

Air and surface temperature in urban


15/34

Effect ofbuilding material

Building materials generally have lower albedo, where

brick, concrete absorb the suns energy, heat up, and

reradiate that heat to the ambient air the resulting urban

heat island is a kind of microclimate

Buildings are taller than the most natural vegetation and

they obstruct the air flow and produces lower average

wind speeds


16/34

Effect of Internal energy by Human activity

Many human activities generates internal

energy as a waste by product

e.g.

Power Plants

Industrials process

Transport use

Air- conditioned use


17/34

Application of Remote Sensing

In remote sensing, Thermal infrared (TIR) sensors can obtain

quantitative information of surface temperature across the Land

use / Land cover categories.

Geostationary Operational Environmental Satellite (GOES) - 4km

Advanced Very High Resolution Radiometer (AVHRR) - 1 km

Moderate Resolution Imaging Spectroradiometer (MODIS) 1 km

Advanced Space borne Thermal Emission and Reflection Radiometer

(ASTER) - 90 m

Landsat-7 - 90m


18/34

Applications of GIS

Buffering- creates the buffer zone

Overlay-combines geometric and attributes from

different layers

Distance measurement- two features

Spatial Statistics -detect spatial dependence and

patterns of concentration among features.

Map manipulation - manage and alter layers in a data

base.


19/34

Need of the study

Hyderabad city is a dominant center of economy,policy, society and culture and more than five millionpopulations already live in.

The concentration of activities provides a the high

density of buildings and transport use consumesenergy and generates air and noise pollution

These buildings together use onethird of all theenergy consumed in the state, and two-third of all

electricity.

Transform of vegetation to impervious land


20/34

Study area

Hyderabad is located in central Telangana and is

spread over an area of 260 square km.

The city lies at 17.36' N latitude and 78.47' Elongitude.

The city lies in the Deccan Plateau and rises to anaverage height of 536 m above the sea level.

April 2007 onwards Hyderabad becomes GreaterHyderabad Municipal Corporation.

City is divided in to five zones ( North, South, Central,East, West ) and 18 circles


21/34

SATELLITE IMAGE

OF

STUDY AREA


22/34

Climate

During the summer months, the mercury goes as high as

42C while in winters the minimum temperature maycome down to as low as 12C

More than 75 per cent of the rainfall is received during the

south-west monsoon season, i.e., from June toSeptember

Humidity during the monsoon season is very highexceeding 75% from July to September

According to India Meteorological Department, thesummer months of April & May of 2009 recorded thewarmest temperatures since 1901


23/34

Objectives of the study

To examine the Spatio-temporal variations in temperature ,rainfall

and other climatic factors

Investigate the mechanism underlying different microclimates in the

Hyderabad

Identify the both man-made and natural causes for urbanmicroclimates formation

Identification of urban heat island and its impact

To asses the impact of green cover on microclimates

To co-relate urban land use and microclimate

Spatio temporal analysis of microclimates in Hyderabad


24/34

Hypothesis to be tested

Urban Heat Island is associated with CBDand Industrial area

Urban forestry is associated with vegetationcool Island

Microclimates conditions vary depending onseason, weather, and time of day


25/34

Methodology


26/34


27/34


28/34


29/34

Un Supervised classification


30/34

Supervised Classification


31/34

FINAL OUTPUT IN ARC GIS


32/34

FINAL OUTPUT IN ARC GIS


33/34

Bibliography1. Alka Gadgil, 2003 Development of Urban Climatology ,Deccan Geographyer , Vol .41, No .1

June,pp 73-88

2). Anupma Prakash.,2000 Thermal Remote sensing : Concepts, Issues and applicationsInternational Archives of Photogrammetry and Remote sensing vol XXXIII, part B1 Amsterdam

3). Benedicte Dousset, Francoise Gourmelon.,2001 Remote sensing application to the analysis ofurban microclimates IEEE/ISPRS joint work shop on remote sensing data fusion over urbanareas

4). Georgi N.J ,K.Zafiradis., 2006 The impact of park tress on microclimate in the urban area,Spring scince and Business Media , LCC 2006

5). Javed Mallick ,Yogesh Kant and B.D Bharath.,2008 : Estimation of land surface temparaureover delhi using Land sat -7 ETM+ , J.Ind.Geophy.Union Vol .12 No.3 pp 131-140

6). Kang-Tsung Chang., 2003: Introduction to Geographic Information Systems, 2nd edition,McGraw-Hill Higher Education

7). Lillesand, Kiefer, Chipman., 2008 : Remote sensing and Image interpretation5th edition, Wiley Publisher.

8). Qihao Weng., 2009: Thermal infrared remote sensing for urban climate and environmentalstudies : Methods, applications , and trends , IEEE paper .

9). Simos Yannas., 2004: Adaptive Skins and microclimates - 21st conference on Passive and Lowenergy engery architecture Eindhoven,The Netherlands, 19-12 sep 2004

10). Terry J.Williamson and Evyatar Erell .,2001: Thermal Perforamnce simulation and the urbanmicroclimate : Measurements and predictions Seventh Internationl IBPSA conference , Rio de

janerio, Brazil , August 13-15,2001


34/34

Thank you

Cess Final ion

Documents

Transcript of Cess Final ion