Digitization and Coding of Canals in Armeniakura-aras.iwlearn.org/EU-Main_Events_files/FINAL REPORT...

Trans-Boundary River Management Phase II for the Kura River – Armenia, Georgia and Azerbaijan

Service Contract No TACIS/2007/134-398

Digitization and Coding of Canals in Armenia

Technical Report

Final

Prepared by:

EPTISA Servicios de Ingenieria S.A. (Spain) & Grontmij Carl Bro A.S. (Denmark)

October 2009

A project funded by the European Union Disclaimer: This report has been prepared with the financial assistance of the European Commission.

The views expressed herein are those of the consultants and in no way reflect the official opinion of the Commission

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TABLE OF CONTENTS

LIST OF ACRONYMS .........................................................................................................................3 INTRODUCTION..................................................................................................................................4

1 BACKGROUND ...........................................................................................................................5 2 OBJECTIVES ...............................................................................................................................7 3 CODING METHODOLOGY ......................................................................................................8 4 IMPLEMENTATION.................................................................................................................10 5 FINAL OUTCOME OF THE ACTIVITY ...............................................................................15

CONCLUSION ....................................................................................................................................16 ANNEX 1: SCOPE OF WORK ..........................................................................................................17 ANNEX 2. STRUCTURE OF WATER RESOURCES GEODATABASE OF ARMENIA .........18 ANNEX 3. WATER OBJECT CODES FOR ALL 170 CANALS IN ARMENIA........................19 ANNEX 4. REFERENCES .................................................................................................................23

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LIST OF ACRONYMS

ASH Armenian State Hydro-meteorological Service

CJSC Closed Joint-Stock Company

DEM Digital Elevation Model

DW Data Warehouse

EEA European Environment Agency

EIMC Environmental Impact Monitoring Center

ERICA European River and Catchment Area Coding System

EU European Union

FSU Former Soviet Union

GIS Geographic Information System GPS Global Positioning System

HTS Hydro-Technical Structure

MNP Ministry of Nature Protection MTA Ministry of Territorial Administration

NGO Non-Governmental Organization

SCWS State Committee on Water Systems

SWC State Water Cadastre

SWCIS State Water Cadastre Information System WFD Water Framework Directive

WGS World Geographic System

WOC Water Objects Coding

WRMA Water Resources Management Agency

WUA Water User Associations

USAID Unites States Agency for International Development

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INTRODUCTION

Water resources represent one of the most important components of nation’s welfare and development, hence their efficient use and management is of priority importance. To achieve this, information on water resources need to be accurate, accessible, timely, and easily interpretable. In Armenia data and information on water recourses is maintained within various state and private agencies’ in both hard copy and digital format. Summary information on water resources is being accumulated in the State Water Cadastre Information System (SWCIS) maintained by Water Resources Management Agency (WRMA) of the Ministry of Nature Protection (MNP) of Armenia.

Water objects coding is an internationally widespread technique, which assigns unique identifiers to rivers, lakes, reservoirs, canals and catchment areas in order to facilitate linking data from various databases based on spatial characteristics of the feature. Armenia had no water object coding system until the development of a new methodology, which has been created in 2006 by the financial assistance of USAID Water Management Program. Adopting internationally accepted water objects coding system was a key priority for Armenia. The proposed approach maintained some aspects of the former Soviet coding system but is based on the European River and Catchment Area Coding System (ERICA), which provides an opportunity for future integration into the joint European Union system. During 2006-2008 coding of Armenian river network, their catchment areas, as well as lakes and reservoirs has been implemented. In order to finalize the coding of all water objects in Armenia, in 2009 the European Union Project “Transboundary River Management Phase II for the Kura River Basin Armenia, Georgia, Azerbaijan” initiated an activity on digitization and coding of canals in Armenia. The assignment proved to be a logical continuation of the activities on water objects coding. Digitization and coding of canals envisaged to complete the task of integrating all surface water bodies of Armenia in a single GIS geodatabase. Completion of the entire database on coding of Armenian water objects (river network, catchment areas, lakes, reservoirs and canals) will promote more precise characterization of water resources and identification of water bodies required by WFD. The activity has been implemented as a joint effort of the Armenian Institute on Geodesy and Cartography CJSC and GEORISK Scientific Research Company Ltd. under the overall coordination of Environmental Policy Analysis NGO. According to the Scope of Work for this assignment (Annex 1 of this report) the overall task was divided into the following three main stages:

(1) digitization of Armenian canals and adjustment of water objects coding methodology for canals;

(2) designating unique identifiers (codes) to the digitized canals according to the methodology; and

(3) incorporation of the coded canals into the general Water Objects Coding geodatabase of Armenia.

The background and objectives of the activity are presented in Sections 1 and 2 of this report. The adjusted methodology for coding of canals in Armenia is discussed in Section 3. During the actual implementation of the assignment a number of issues arose which required technical solutions. Those issues are discussed in Section 4 of this report along with description of the proposed solutions. The last section summarized the final output of the activity. In addition to the Scope of Work, the Annexes of the report also include the structure of the finalized water resources geodatabase in GIS format as of September 10, 2009 (Annex 2); a table with actual water object codes for all 170 digitized canals in Armenia (Annex 3) and list of literature sources used while adjusting the methodology (Annex 4).

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1 BACKGROUND

In Armenia data and information on water recourses maintained within the various agencies databases are integrated into the State Water Cadastre Information System. Along with tabular data, the SWCIS incorporates also spatial layers related to water resources, such as: natural streams (rivers), lakes and reservoirs, catchment areas, water quantity and quality monitoring stations, etc. To be operational, such system needed to allow entering additional data to its components. To link the additional data with existing datasets as well as to ensure inter-operability among the databases, a unique identifier needed to be assigned to each water object in the country. These codes will provide a “unified” system of identifiers between agencies and water resources planners and serve for presenting the spatial relationships between these features and other datasets such as water quantity and quality monitoring posts, land-use patterns, vegetation and landscape zones, topography, etc.

The SWCIS consists of a Data Warehouse, data imputing templates, databases at each stakeholder institution, and electronic tools for data transfer between these institutions. It includes both administrative/legal and technical water resources data and serve as an official legal repository of water resources and water systems information for the Government of Armenia. The Data Warehouse (DW) incorporates water resources related data from multiple sources and stores it under a unified, integrated relational database at a single site. The DW provides users a single consolidated interface and portal to summarize information to support water management and conservation decision-making at the central and basin levels. The SWCIS has been constructed according to the technical design developed and agreed upon by all stakeholder organizations in 2006. The system architecture of the SWCIS is shown in Figure 1 below.

Figure 1. Technical structure of the SWC Information System

The main concepts of the SWCIS are summarized below:

• The SWCIS contains both spatial and tabular data, and uses relational database model and client-server architecture.

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• The Data Warehouse uses a common water objects coding system (ERICA) to link the data of stakeholder organizations and geo-referencing water objects within the information system.

• The SWCIS facilitates data/information sharing between stakeholder organizations on a regular basis.

• The stakeholder organizations agree upon the datasets to share among them and the scope of summary information to be provided to the Data Warehouse.

• The Water Resources Management Agency of the Ministry of Nature Protection of Armenia shares the Data Warehouse data holding on-line via the WRMA website (URL: www.wrma.am)

The works on the coding of water objects in Armenia were launched in May 2006. As a first step a number of coding techniques, both common for European countries and ones applied worldwide, were investigated. As a result of the research, ERICA coding system was selected, adjusted for Armenia and agreed with all stakeholders.

During 2006-2008, with the support of USAID, the following activities were implemented:

• ERICA coding methodology was enhanced to assign identifiers to rivers, catchment areas, lakes and reservoirs of Armenia, taking into account the system of water objects coding of the FSU;

• The entire river network of Armenia was digitized from 1:25,000 scale hardcopy maps; • The rivers, tributaries and streams longer 5km in length were coded based on ERICA

methodology. Total 1998 river sections got unique identifiers; • Accordingly, 1998 catchment areas and inter-basin areas of river sections were coded and got

unique identifiers based on ERICA methodology; • All lakes and reservoir of Armenia were digitized from 1:25,000 scale hardcopy maps; • Total 561 lakes and 314 reservoirs were coded and got unique identifiers based on ERICA

methodology. To finalize the WOC database of Armenia following tasks should have been completed:

• adjusting Armenian methodology of Water Objects Coding for canals;

• digitizing the network of main, distributive and tertiary canals of Armenia (scale: 1:25,000);

• establishing a digital database in ArcGIS format on all canals currently in operation in Armenia;

• coding the digitized canals according to the proposed methodology;

• incorporating the newly created layers into the Armenian Water Objects Coding geodatabase.

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2 OBJECTIVES

The main objective of the digitization and coding of canals in Armenia is to provide a computer-based tool for incorporating of data on canals from various sources into a comprehensive database. The digitization provides for accurate locating of the main, distributive and tertiary canals on the GIS base map of Armenia. The coding facilitates incorporation of all available information on the given canal (including technical characteristics, water quantity and quality data, etc) into a comprehensive database under the unique identifier (code) of the given canal. This code plays a role of “social security number” and enables linking four related databases of SWCIS based on spatial location of the given canal. Those databases include:

• Hydrological (water quantity) monitoring database run by ASH of the MNP; • Water quality monitoring database, operated by EIMC of the MNP; • Water use permitting database, operated by WRMA of the MNP; and • Database on hydro-technical structures (HTSs) run by SCWS of the MTA and WUAs.

The above-mentioned organizations appear to be the main stakeholders/’users of the system. The Table below presents a brief summary on the needs of those entities to be addressed by the further use of the canals’ coding system, as well as their rights to revise and update the WOC database.

# User Needs to be addressed User rights

1 WRMA

The coding of canals will: • ensure more informed decision-making

for water use permitting • facilitate characterization of river basins • facilitate delineation of artificial water

bodies (AWB) under WFD requirement • facilitate development of Plan of

Measures for AWBs

• Reading, revising, updating Water Use Permitting Database

• Running Data Warehouse with full access to information and rights to revise the WOC database, including adding new canals, assigning identifiers (codes), removing non-operational canals out of database.

2 ASH

The digitization of canals will facilitate more accurate calculation of flows in the rivers that the canals originate from. In addition, since the catchment area is identified which the canal originates from, the calculation of runoff in the case of open canals is possible.

• Reading, revising, updating Hydrological Database;

• Sending summary data on water level and flow rate in the canals to the Data Warehouse of WRMA

• If necessary, requesting WRMA on revision of the WOC database

3 EIMC

The digitization and coding of canals will facilitate proper classification of AWBs in terms of water quality parameters. This will serve for further preparation of information-based proposals on expansion of water quality monitoring network in Armenia to include AWBs

• Reading, revising, updating Water quality monitoring database;

• Sending summary data on quality in the canals to the Data Warehouse of WRMA


4 SCWS

Available information on hydro-technical structures will be spitted to identify datasets for separate canals. This will facilitate proper management of canals in operation.

5 WUA

The technical characteristics of each canal (so called “technical passport”) will be digitized and incorporated into the database under the given identifier.

• Reading, revising, updating Database on HTSs;

• Sending summary data on technical characteristics of the canals to the Data Warehouse


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3 CODING METHODOLOGY

Water objects coding system of Armenia incorporates some features of the FSU coding system and the main concepts of the European River and Catchment Area Coding system. The ERICA system has been developed by the UK's Institute of Hydrology, Denmark's National Environmental Research Institute and the University of Freiburg, which initiated the process in 1997. At initial stages ERICA provided a pilot study databases for two areas - the Mingo in Spain and Portugal, and the Meuse in France and Belgium. Special advisory services were provided for ensuring ERICA coding system to create databases which meet the needs of European Environment Agency (EEA). Currently, over 20 countries of Europe use this system, which provides an opportunity to establish comprehensive coding system for transboundary rivers and water objects, by considering hydrological borders of their catchment areas and disregarding political borders among the countries. Compared to the other systems, the ERICA coding system has the following advantages:

• It works for up to 99 sub-catchments and 49 tributary catchments, thus making it easier to maintain a relationship between catchment size and levels of coding.

• Seas and Marine borders are handled.

• Areas draining in a diffused manner to marine borders are treated in a manner consistent with river coding.

• It enables easy assessment of relationships between sub-catchment and river reaches based on simple numeric comparisons and detection of even or odd numbers.

Figure below represents schematically the Armenian Water Objects Coding System methodology.

Figure 2. Scheme of Armenian water objects coding methodology

As one can see from the figure, preserving the 2nd and 3rd digits of the FSU system enables to commence the coding of Armenian rivers by certain code-prefix. In future, while integrating into European and other international systems these “92” and “94” prefixes could just be replaced by international codes of Araks and Kura rivers, whereby the remaining part of the code of any water object will avoid changes. Coding ranging from 4th digit is conducted by ERICA system where it creates capacity for making up to 99 divisions within river system (as Armenia has complicated altitudes and even waters in small rivers have economic significance). Here maximum 49 tributaries are defined which are numbered by even numbers (02, 04 ... 98), and inter-basin territories receive odd numbers (01, 03 … 99). It is obvious from the figure above that the length of the water object code depends upon the level of tributary of the main river because it increases by two digits at each successive level. The longest river code in Armenia consists of 15 digits, which is entirely acceptable in current technical conditions.

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The Armenian methodology on Water Objects Coding [1] used for coding of rivers, catchment areas, lakes and reservoirs. However, in case of canals, it had not specified any specific rules – it used to discuss possible options for individual cases. The purpose of the first task under the activity was to choose the optimal option, as well as to supplement the proposed Methodology for the cases it had not considered.

To achieve this objective, diverse coding techniques were studied – both common European and the ones applied by individual countries [2]. A description of coding principles for canals was found only in one literature source [3]. The main concepts of this proposal were also used while coding Armenian lakes and reservoirs.

Canals do not relate to one primary catchment only. Therefore a logical choice was to be made which catchment these objects might inherit their code from. While for lakes the code of the river segment draining the lake was taken, for canals the opposite approach was taken: here the primary catchments from where the canal starts seems more appropriate to consider. One of the issues arising with coding of canals is a situation, when more than one drainage canal might occur in the same primary catchment. In order to allow for a unique identification of these objects an additional letter or digit is needed. In European coding system for hydrological features a letter code was used. Taking into account the fact that ERICA uses the letter index in the end of the code to indicate basin size, the numerical indication of the canal was chosen to avoid confusion. Thus, a two-digit number is used instead of a letter. Another issue faced during the coding of canals is “branching”. There are some canals which have distributive arms or legs. In such cases the distributive leg gets the same numerical identifier as the “source” canal plus an additional two-digit number at the right, which corresponds to the consecutive number of the legs from the same canal.

Therefore, the water body identifier has the following final form:

ABC N1 N2 N3 ... Nm DD EE where

A is one-digit code indicating the type of the water object (0 indicates a catchment area, 1 is for a river, 2 -for a lake, 3 - for a reservoir, and 4 - for a canal);

B is one-digit regional code (9 for Armenia);

C is one-digit river basin code (2 - Araks river basin, 4 - Kura river basin);

N1 to Nm - are two-digit nested catchment codes;

DD is a two-digit number of canal; EE is a two-digit number of a distributive canal

Next section will discuss the mentioned cases in more details

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4 IMPLEMENTATION

During three months the following tasks were implemented to accomplish the assignment:

• 1:25,000 topographic hard-copy map sheets were scanned and canals from the scanned sheets were digitized into ArcGIS environment;

• Location of the canals were adjusted based on GPS-ing during field trips;

• Location of the rest of canals were verified using available DEM and satellite images;

• Present operational status of irrigation canals were clarified based on the information received from Water User Associations (WUA) throughout the country;

• A GIS layer on canals of Armenia was finalized. As a result of digitization, 170 main, distributive and tertiary canals were identified in the country.

• GIS layer was populated with available data on digitized canals, such as name of the canal, type, length and other technical characteristics.

• Developed methodology for the canals coding was applied to assign unique identifiers to all digitized canals.

• The water objects coding geodatabase of Armenia was amended with appropriate shape files and was finalized.

Based on the above-mentioned approach, the coding of canals is straightforward, when canal starts from the river. In this case, the N1 to Nm digits of its code coincide to the corresponding digits of the river section the canal originates from (refer to Figure 3 below).

Figure 3. The first canal originated from the river 1923605 with the catchment area 0923605 got the identifier 492360501

Even if the canal passes through several catchment areas it obtained the identifier of the mother-river. For the cases when the canal originates from a lake or reservoir, the coding principles remain the same and the N1 to Nm digits of identifiers coincide with those of the lake/reservoir. Figure 4 below demonstrates the approach used.

492360501

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Figure 4. Example of coding of a canal originated from a reservoir

If some canals are originated from the smaller rivers (shorter than 5 km) or lakes, within the given catchment area, they are coded using the numerical identifier of that catchment area according to the consecutive appearance in the direction of the river flow. For an example please refer to Figure 5 below: the canals originated within the catchment area # 0 92 38 03 are coded from left to right, as the river flow on that direction. So, the first canal with the identifier 4 92 38 03 01 originates from the river (blue-green color on the picture); the second canal with the identifier 4 92 38 03 02 originates from a smaller (non-coded) river within the basin (violet color); the third and fourth canals with identifiers 4 92 38 03 03 and 4 92 38 03 04 respectively originate from a small lake entirely located within the catchment area (light and dark green colors on the picture); and so on.

Figure 5. Example of coding of canals within the same catchment area

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If the canal originates from the same point of the river and flows to opposite directions, a left-hand side canal (from river flow direction) gets identifier first than the right-hand side canal. For example, on Figure 6, a river flows from east to west within the catchment area # 0 92 02 06 28 02 02. So the brown-colored canal gets the identifier first (# 4 92 02 06 28 02 02 01), after which blue-colored canal one gets the next identifier # 4 92 02 06 28 02 02 02.

Figure 6. Example of coding of two canals originating from the same point of the river

In the case of “branched” canals, when the main canal has arms or legs (so-called distributive canals), the latter are coded as “tributaries” of the main canal, using the same methodological approach, as it was use while coding of river tributaries. As shown on Figure 7, the green-colored distributive arms of the canal # 4 92 01 got the identifiers # 4 92 01 01 and 4 92 01 02, while the reddish distributive arms are considered next consecutive “tributaries” and got identifiers # 4 92 01 03 and 4 92 01 04.

Figure 7. Example of coding of “branched” canals

The Ararat valley of Armenia is well-known with its dense drainage system for irrigation. Therefore, in addition to digitization of canals, the mapping of main collectors, drainage system pipelines were implemented as well (Figure 8). The exact location of irrigation canals was adjusted both by satellite images and GPS-ed data provided by corresponding WUA. Figure 9 shows such an example in Debed river basin.

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Figure 8. Irrigation canals and drainage system of Ararat valley

Main canals

Distributive canals

Drainage system

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Figure 9. Irrigation canals from Dzoraget river, below Agarak village (Debed river basin)

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5 FINAL OUTCOME OF THE ACTIVITY

Upon completion of the activity, the water objects coding geodatabase of Armenia was amended with appropriate shape files. Several CDs were fired with a comprehensive geodatabase, covering the following 5 datasets:

• Catchment areas (total 1998 basins and inter-basins) • Lakes (total 561 natural lakes) • Reservoirs (total 314 man-made reservoirs) • River Network (total 1998 river sections) • Canals (total 170 main, distributive, tertiary canals) In addition, five shape layers were added into the Water Objects Coding geodatabase, namely:

• State Boundary - Polyline shape file

• Marzes of Armenia - Polygon shape file

• Roads - Polyline shape file

• Settlements - Polygon shape file

• Main cities and town - Polyline shape file All the spatial data are all displayed in UTM projection, WGS-84, Zone-38 (see Figure 10). An ArcGIS project was created and fired on CDs. The project covers the overall territory of Armenia and, in addition to the above-mentioned layers, includes:

• State Boundary - Polyline shape file • Armenia Hillshade - raster file (GEOTIFF format) • Armenia DEM - raster file (GEOTIFF format) • Armenia Landsat-TM - 2 raster files (GEOTIFF)

The above-mentioned geodatabase on Armenian WOC, the ArcGIS project file and the present report are included in the CDs that were fired as final output of the assignment. The photo on the left-hand side presents the design of the cover of CDs.

Figure 10. Contents of the Armenian Water Objects Coding geodatabase

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CONCLUSION

The coding of water objects, namely river network, catchment areas, lakes and reservoirs, provides an opportunity to integrate the databases of various institutions involved in the State Water Cadastre into a single information system. The summary information of this system is incorporated into the Data Warehouse. Water Objects Coding system provided for a GIS-based tool for linking relational databases of the stakeholder institutions involved in the SWC Information System.

Currently, as a result of this successful endeavor, Armenia has completed coding of all water objects in its territory. This includes all the rivers longer than 5km, their catchment areas, all lakes, reservoirs, as well as canals currently operating in the country. Meanwhile neighboring countries of Georgia and Azerbaijan have adopted and completed coding of river network, which can serve as a basis for sustained regional water sector cooperation and information sharing. Further progress of the work can be achieved if applying the same system for coding of lakes, reservoirs and canals for the entire South Caucasus region.

The digitization and coding of canals in Armenia will enhance proper management of water resources. Since the canals represent artificial water bodies according to Water Framework Directive, the integration of all available data on canals under the unique identifier will certainly be a very useful tool for characterization of the basins, delineation of water bodies and development of integrated river basin management plans. After implementation of similar activity in neighboring countries, it will be possible to harmonize Armenian water object codes into the comment South Caucasian regional coding system. This will serve as a starting point for development of joint transboundary management information systems for the South Caucasus region.

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ANNEX 1: SCOPE OF WORK

Digitization and Coding of Canals in Armenia Background The coding of water objects of Armenia was initiated in 2006 as a part of development of the State Water Cadastre Information System. The main objective of the activity is to assign each water object a unique identifier that will be used to link data from various databases into a single consolidated information system. The same identifier would be used for mapping and geo-referencing all water objects in Armenia. The activity was implemented in three stages during 2006-2008. At the first stage international experience was studied and European River and Catchment Area (ERICA) coding system was selected for coding the water object in Armenia. The methodology was enhanced to provide for digitization and coding of river network, catchment areas, lakes and reservoirs of Armenia. At the second stage the digitization and coding of Armenian rivers and catchment areas were implemented. As a result each river, tributary and stream of more than 5km in length got a unique identifier. In total the territory of Armenia was delineated into 1998 river sections and corresponding 1998 catchment areas. During the second stage coding of Armenian lakes and reservoirs were implemented using the same methodology. As a final outcome the established database covered 561 lakes and 314 reservoirs throughout the country. The overall work was implemented and the results were provided on the GIS maps of 1:25,000 scale. Currently only digitization and coding of the canals of Armenia are pending to complete the overall geodatabase of water objects. Tasks under the assignment • Adjust the Armenian methodology of Water Objects Coding for canals. The methodology will be

based on European River and Catchment Area (ERICA) coding system;

• Digitize canals using base maps of the 1:25,000 scale. Establish a digital database in ArcGIS format for all canals existing in Armenia;

• Assign unique identifier to each digitized canal according to the developed methodology;

• Finalize the water objects coding geodatabase of Armenia;

• Prepare a final report on methodology and coding of canals in Armenia.

Total duration of the activity: 10 weeks Timetable

Task Duration Adjusting the water objects coding methodology for Armenia to accommodate for coding of canals 1 week

Digitizing canals of Armenia into a GIS layer (scale: 1:25,000) 4 weeks Coding of digitized canals according to the developed methodology 2 weeks Review and correction of the gaps identified during the activity 1 week Incorporation of canals coding system into a single water objects coding geodatabase 1 week Preparation of a final report on digitization and coding of canals in Armenia 1 week

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ANNEX 2. STRUCTURE OF WATER RESOURCES GEODATABASE OF ARMENIA

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ANNEX 3. WATER OBJECT CODES FOR ALL 170 CANALS IN ARMENIA

# ID WOC Shape_Length Name_Eng Type

1 244 49201 47600,72663 Armavir main canal Main canal

2 29 4920101 6782,983759 Gharaghala pump station tail-race Raceway 3 6 4920102 10525,17349 Coastal branch canal Tertiary 4 7 492010201 10656,12868 Margara canal Tertiary

5 10 49201020101 2553,46815 1-3K-1 Distributive Distributive

6 248 492010202 15554,52112 Mrgashat canal Tertiary

7 9 49201020201 12092,11469 Tandzut canal Tertiary

8 4 4920103 12311,93455 Bambakashat canal Tertiary 9 13 4920104 3273,826894 Hushakert water station tail-race Raceway

10 5 4920105 3381,958286 #10 interfarm Distributive Distributive 11 184 4920206080101 23110,75598 Vorotan main canal Main canal

12 186 4920206080401 2589,882233 Karahunj reservoir headrace Raceway

13 89 4920206081001 6606,245419 Karahunj reservoir headrace Raceway

14 50 4920206120101 7129,706133 Karahunj reservoir tail-race Raceway 15 148 49202062701 4005,135518 Uyts headrace Raceway 16 102 4920206280101 3796,822846 Nursery garden canal Tertiary

17 90 492020628020201 3609,770207 Uyts water station tail-race Raceway

18 149 492020628020202 8064,537333 Uyts water station tail-race Raceway

19 104 492020628020203 1079,833843 Uyts headrace Raceway 20 150 492020628020204 934,1531703 Uyts headrace Raceway

21 151 492020628020401 1749,243924 Tertiary 22 101 492020628020402 5096,700726 Tertiary

23 176 492020628040501 8592,960158 Tertiary

24 189 49202062804050101 1650,52977 Distributive

25 173 4920206280601 1154,734096 Tertiary 26 190 492020628120401 7279,329932 Tertiary 27 169 492020628140201 14269,86078 Tertiary 28 170 4920206420201 3596,843225 Tertiary

29 188 4920206421201 3944,408744 Tertiary 30 191 4920206520301 43010,50136 Spandaryan canal Tertiary

31 81 49202066901 20254,47404 Gndevaz canal Tertiary

32 52 49202080101 11450,2175 Knndzoresk #2 water station tail-race right branch Raceway

33 165 492221201 21345,0705 Karchevan canal Tertiary

34 163 492221601 4344,959201 Tertiary

35 168 492222201 3622,934352 Tertiary 36 109 49228080101 4608,514643 Areni-Khachik water station headrace Raceway 37 107 492281701 1900,403837 Getap-Aghavnadzor water station headrace Raceway

38 105 49228180201 5732,205394 Getap-Aghavnadzor pump station Arpi branch Tertiary

39 60 49228180401 9757,39677 Rind canal Tertiary

40 64 49228240201 2958,349357 Gladzor canal Tertiary 41 61 49228240401 5669,631191 Getap-Eghegnadzor canal Tertiary

42 62 49228240701 9406,342659 Shatin-Getap canal Tertiary 43 213 49228240702 5205,048296 HPP canal Tertiary

44 63 49228260101 1821,08557 Vernashen-Gladzor canal Tertiary

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45 108 492283901 8391,607146 Malishka-Eghegnadzor canal Tertiary 46 106 492284501 6009,848725 Vaik canal Tertiary

47 177 49228660301 13981,55074 Kechut canal Tertiary

48 155 492340101 7729,423055 Tertiary

49 228 492340102 46827,23144 Yeraskh canal Tertiary

50 239 49234040101 14131,65737 Garni canal Tertiary 51 110 492360301 23058,83389 Ejmiatsin canal Tertiary 52 27 492360302 20992,92936 Musaler canal Tertiary

53 26 49236030201 3236,500561 Musaler canal Tertiary

54 118 492360303 1607,170031 Nor Dalma canal Tertiary 55 230 492360501 55198,60313 Artashat canal Tertiary

56 14 492360502 61413,33629 Lower Hrazdan canal Tertiary 57 16 49236050201 2362,383855 Lower Hrazdan canal 3a branch Tertiary 58 18 49236050202 2917,268126 Lower Hrazdan canal 5 branch Tertiary

59 37 492360701 90210,56737 Arzni-Shamiram canal Tertiary

60 119 49236070101 16209,38038 Arzni branch canal Tertiary

61 291 49236070102 10620,47298 Kosh branch Tertiary

62 121 4923607010201 1060,617772 VR-2 Distributive 63 120 4923607010202 3807,254456 VR-3 Distributive

64 129 492360801 9838,370595 Zoravan headrace Tertiary

65 93 49236100201 9649,473187 Yernjatap main canal Main canal 66 227 492362601 10974,05436 Hrazdan-Solak canal Distributive

67 131 492362701 5057,996542 Ddmashen canal Tertiary

68 65 492363701 6473,262741 Tsovak #1 canal Tertiary 69 88 492363702 2313,034845 Ruins canal Tertiary

70 83 49236400101 6761,329368 Noratus left branch canal Tertiary

71 70 49236400102 10806,39267 Noratus right branch canal Tertiary 72 85 4923640040501 4863,531906 Sarukhan water station tail-race left branch Raceway 73 124 49236400701 5957,983142 Sarukhan gravity canal Tertiary 74 84 49236400702 493,9539759 Sarukhan water station headrace Raceway 75 123 49236400703 2425,735547 Sarukhan water station tail-race right branch Raceway


78 222 49236640101 4898,343263 Getashen canal Tertiary

79 117 4923664010101 8588,271383 Distributive

80 71 49236640102 6391,173701 Additional canal Tertiary 81 72 49236680501 19310,33546 Manas ditch Ditch

82 73 49236760301 4333,688491 Zuskar lower ditch Ditch 83 77 49236920201 5348,604994 Tsovinar big ditch Ditch

84 80 492369601 6162,175072 Ruins canal Tertiary

85 76 49236960301 3602,410625 Tsovinar #2 canal Tertiary 86 75 49236960501 3605,685784 Makenis canal Tertiary 87 224 49236980401 26230,905 Masrik canal Tertiary

88 78 49236980402 7786,31887 HPP canal Tertiary 89 92 49236980901 2527,754388 Geghamabak canal Tertiary

90 1 492380101 4239,450087 Sevjur-Hrazdan headrace Raceway

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91 15 49238020101 16546,88108 Ajgeshat Shah-Arkh canal Tertiary 92 17 49238020301 1227,492436 Kasakh additional canal Tertiary

93 82 49238021101 16459,22328 Eghvard canal Tertiary

94 132 4923802120101 7053,547011 Kuchak main canal Main canal

95 133 4923802120102 4003,702583 Hushakert water station distributive Distributive

96 429 492380301 11456,18957 Tertiary 97 427 492380302 2179,098253 Metsamor water station tail-race Raceway 98 2 492380303 11454,69928 Aknalich lower canal Tertiary

99 20 492380304 4728,502509 Aknalich upper canal Tertiary

100 95 492380305 16077,94984 Metsamor canal Tertiary 101 94 49238030501 7465,143258 Sevjur left branch canal Tertiary

102 241 492380306 14638,60693 Jrarat canal Tertiary 103 24 49238030601 7407,262334 Apaga-Lusagyugh canal Tertiary 104 270 49238060401 6388,381808 Ashnak distributive Distributive

105 127 4923806040101 4869,765299 Ashnak new distributive Distributive

106 126 49238060701 7835,785979 Akunk distributive Distributive

107 30 492380901 4510,865064 Ashnak-Zovasar canal Tertiary

108 275 492381601 9448,049668 Areg canal Tertiary 109 276 49238160101 9425,755332 Suser distributive Distributive

110 125 492382101 7229,151506 Mastara distributive Distributive

111 257 492400101 41406,00831 Talin main canal Main canal 112 265 49240010101 25205,12276 Talin main canal 3rd stage Main canal

113 36 49240010102 12715,13148 Talin main canal left branch Main canal

114 409 49240010103 23961,03846 Talin main canal 2nd stage Main canal 115 360 4924001010301 9879,559794 R-3 distributive Distributive

116 111 492400101030101 5712,982061 R-3 distributive Distributive

117 113 4924001010302 8224,232305 R-4 distributive Distributive 118 114 4924001010303 7973,644465 R-6 distributive Distributive 119 34 4924001010304 2182,643961 R-10 distributive Distributive 120 112 4924001010305 11381,90008 R-11 distributive Distributive 121 122 49240010104 6392,010212 MKh-3 distributive Distributive

122 251 49240010105 4663,39266 MKh-7 distributive Distributive 123 97 492400102 5482,145937 Bagaran-Yervandashat canal Tertiary

124 277 492400301 5210,333901 Getap-Artik canal Tertiary

125 38 492401402060101 16507,07347 Aygabac canal Tertiary

126 44 49240140701 3061,384769 Meghrashen Distributive Distributive 127 295 49240141301 14842,56358 Gharanghuright branch canal Tertiary

128 297 4924014130101 5303,813737 Geghanist ditributary Distributive 129 47 49240141302 6124,853102 Gharanghu left branch canal Tertiary

130 45 4924014130201 5434,194994 Getap ditributary Distributive

131 316 49240180301 12459,25544 Kaps canal Tertiary 132 68 492402301 26857,05991 Shirak main canal Tertiary 133 135 49240230101 1578,114581 7 ditributary Distributive

134 136 49240230102 1866,707953 17 ditributary Distributive 135 142 49240230103 2267,671514 15 ditributary Distributive

136 141 49240230104 2842,23708 16 ditributary Distributive

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137 134 49240230105 3065,204303 18 ditributary Distributive 138 137 49240230106 9629,414222 25 ditributary Distributive

139 302 49240230107 31928,07007 26 distributive Distributive

140 357 492403301 27862,0693 Akhuryan right branch canal Tertiary

141 356 49240330101 9634,323177 Left branch inter-farm distributive B-1 Distributive

142 41 49240330102 4103,243729 Kaps canal Tertiary 143 145 4924033010201 4195,114246 Right branch canals upper canal Tertiary 144 42 49240330103 6266,505638 B-9 distributive Distributive

145 362 49240330104 1912,984309 Right branch canals B-8 distributive Distributive

146 144 49402020301 2956,136138 Chinar canal Tertiary 147 336 49402020501 5608,814596 Aygedzor canal Tertiary

148 59 494020501 6957,353798 Nerkin Karmiraghbyur canal Tertiary 149 100 494020901 3941,259939 Berd canal Tertiary 150 334 494063001 11909,81596 Khashtarak canal Tertiary

151 332 494101301 1439,694784 Noyemberyan water station canals right branch Tertiary

152 147 49412020201 6526,289563 Noyemberyan water station canals left branch Tertiary

153 146 49412020501 1685,498199 Noyemberyan water st. main canals Tumanyan branch Main canal

154 55 49412040101 1893,272169 Hay ditch Ditch

155 54 49412040401 8093,408823 Zeytun-Haghtanak water station left branch canal Tertiary

156 331 49412040402 6467,399007 Zeytun-Haghtanak water station left branch canal Tertiary 157 57 49412040403 9557,220934 Zeytun-Haghtanak water station left branch canal Tertiary 158 330 49412040404 4622,795976 Zeytun-Haghtanak water station left branch canal Tertiary

159 329 49412040405 5001,300282 Zeytun-Haghtanak water station left branch canal Tertiary 160 56 49412040406 6057,081297 Zeytun-Haghtanak water station left branch canal Tertiary

161 58 49412040501 14470,41186 Debetavan canal Tertiary

162 156 49412041501 3923,910157 Tertiary 163 342 4941204380601 1913,548998 Tertiary 164 143 4941204381301 7316,091227 Amrakits canal Tertiary

165 337 494120438160101 42783,76309 Lori canal Tertiary


168 161 494120440300303 6612,112745 Tertiary

169 346 4941204404501 5775,924951 Tertiary 170 157 494120440520101 44524,41441 Mikoyan canal Tertiary

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ANNEX 4. REFERENCES

1. Coding of Water Objects in the Republic of Armenia: Methodology and its Application in a Pilot Basin, Yerevan, 2006.

2. P. Britton. Review of Existing River Coding Systems for River Basin Management and Reporting. WFD, GIS Working Group, 2002.

3. Proposal for a European coding system for hydrological features, 2nd Draft. Based upon a proposal made by the Coding group chaired by A. Wirthmann. Revised by A. Jager, 2007.

4. The Basic Problems of Rational Use and Conservation of Water Resources of the Republic of Armenia. Published with the financial support of the UNESCO Moscow Office, 2007. Yerevan.

5. Water Objects Coding for Lakes and Reservoirs of Armenia, Yerevan, 2008.

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