1. 1 Center for Research in Water Resources The University of Texas at Austin Water Management Information System for the Rio Grande/Rio Bravo Basin Carlos Patino April, 2003

2. 2 Center for Research in Water Resources The University of Texas at Austin The importance of this project Due to the water scarcity suffered during last teen years in the Rio Grande/Bravo basin, it is fundamental to develop new reservoir/river simulation models, in order to determine available water in this basin using hydrologic principles and actual measurements taken at stream gages; which will provide a vast array of data analysis capability necessary for a better water resource management and planning in this zone

3. 3 Center for Research in Water Resources The University of Texas at Austin Collaboration between USA-Mexico In this project, the Center for Research in Water Resources (CRWR) of the University of Texas at Austin, The Mexican Institute of Water Technology (IMTA), and the National Water Commission (CNA) of Mexico will cooperate to develop a geodatabase to build hydrologic information systems, which can be used to support hydrologic analysis and modeling of the Rio Grande/Rio Bravo basin. In this project, the Center for Research in Water Resources (CRWR) of the University of Texas at Austin, The Mexican Institute of Water Technology (IMTA), and the National Water Commission (CNA) of Mexico will cooperate to develop a geodatabase to build hydrologic information systems, which can be used to support hydrologic analysis and modeling of the Rio Grande/Rio Bravo basin.

4. 4 Center for Research in Water Resources The University of Texas at Austin This Geodatabase seeks to solve the fundamental problem of making available accurate climatic, hydrologic, hydraulic, and related data. The ArcHydro data model will provide ready access to data needed for independent hydrologic and policy analysis using a wide variety of hydrologic, water quality, and environmental models. This Geodatabase seeks to solve the fundamental problem of making available accurate climatic, hydrologic, hydraulic, and related data. The ArcHydro data model will provide ready access to data needed for independent hydrologic and policy analysis using a wide variety of hydrologic, water quality, and environmental models.

5. 5 Center for Research in Water Resources The University of Texas at Austin The geodatabase will be made available to Mexican and U. S. federal, state, and local organizations. It will assist in developing bi-national cooperation between Mexico and the United States concerning water in the Rio Grande basin, providing accurate and reliable data necessary for analysis and resolution of water resources issues The geodatabase will be made available to Mexican and U. S. federal, state, and local organizations. It will assist in developing bi-national cooperation between Mexico and the United States concerning water in the Rio Grande basin, providing accurate and reliable data necessary for analysis and resolution of water resources issues

6. 6 Center for Research in Water Resources The University of Texas at Austin Inventory of the Rio Grande Basin Information sources: : Information sources: : –USA: U. S. Department of Transportation http://www.fhwa.dot.gov/binational/databank/gis.html U. S. Department of Transportation http://www.fhwa.dot.gov/binational/databank/gis.html http://www.fhwa.dot.gov/binational/databank/gis.html Digital Chart of the World (ESRI)http://data.geocomm.com/ Digital Chart of the World (ESRI)http://data.geocomm.com/http://data.geocomm.com/ Texas Commission on Environmental Quality (TCEQ) Texas Commission on Environmental Quality (TCEQ) http://www.tceq.state.tx.us/index.html USGShttp://seamless.usgs.gov/http://nhd.usgs.gov/ http://nhdgeo.usgs.gov/viewer.htm USGShttp://seamless.usgs.gov/http://nhd.usgs.gov/ http://nhdgeo.usgs.gov/viewer.htmhttp://seamless.usgs.gov/http://nhd.usgs.gov/http://seamless.usgs.gov/http://nhd.usgs.gov/ Texas Natural Resources Information System (TNRIS) Texas Natural Resources Information System (TNRIS) http://www.tnris.org/ International Boundary Water Commission (IBWC) International Boundary Water Commission (IBWC) http://www.ibwc.state.gov/html/rio_grande.html

7. 7 Center for Research in Water Resources The University of Texas at Austin –México Comision Nacional del Agua (CNA) http://www.cna.gob.mx/ Comision Nacional del Agua (CNA) http://www.cna.gob.mx/ http://www.cna.gob.mx/ Instituto Mexicano de Tecnología del Agua (IMTA) Instituto Mexicano de Tecnología del Agua (IMTA) http://www.imta.mx Universidad de Ciudad Juárez, Chihuahua (UACJ) http://cig.uacj.mx/default.php http://cig.uacj.mx/default.php Instituto Nacional de Estadística, Geografía e Informática (INEGI) Instituto Nacional de Estadística, Geografía e Informática (INEGI) http://www.inegi.gob.mx/inegi/default.asp

8. 8 Center for Research in Water Resources The University of Texas at Austin ArcHydro Data Model for the Rio Grande/Bravo basin Original parameters used by the Mexican agencies Projection:Lambert_Conformal_Conic Projection:Lambert_Conformal_Conic False_Easting: 2500000.000000 False_Easting: 2500000.000000 False_Northing: 0.000000 False_Northing: 0.000000 Central Meridian: -102.000000 Central Meridian: -102.000000 Standard Parallel_1: 17.500000 Standard Parallel_1: 17.500000 Standard Parallel_2: 29.500000 Standard Parallel_2: 29.500000 GCS_North_American_1927 GCS_North_American_1927 Datum: D_North_American_1927 Datum: D_North_American_1927

9. 9 Center for Research in Water Resources The University of Texas at Austin THE ARCHYDRO DATA MODEL FOR THE RIO GRANDE BASIN Rio Grand Mapping System (RGMS) Projection Features: Coordinate System: Albers False_Easting: 1000000.000000 False_Northing: 1000000.000000 Central_Meridian: -103.000000 Standard_Parallel_1: 27.416667 Standard_Parallel_2: 34.916667 Latitude_Of_Origin: 31.166667 GCS_North_American_1983 Datum: D_North_American_1983 Prime Meridian: 0

10. 10 Center for Research in Water Resources The University of Texas at Austin Rio Grande basin including HUC’S for the American side; Cuencas and SubCuencas for the Mexican side Rio Grande basin including HUC’S for the American side; Cuencas and SubCuencas for the Mexican side Mexico: 15 SubCuencas (228,000 km 2 ) US: 68 Hydrologic Cataloging Units (327,000 km 2, closed basins included ) Total Area: 555,000 km 2

11. 11 Center for Research in Water Resources The University of Texas at Austin

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14. 14 Rio Bravo/Grande basin regionalization

15. 15 Center for Research in Water Resources The University of Texas at Austin

16. 16 DATABASE FOR THE RIO GRAND BASIN (Resume) Description of dataMexicoUSA Political boundaries (States included in the Rio Grande basin). Source: USA Department of Transportation. Scale: 1:250K ** Basin Delineation Source: USGS-HUC for the American side (1:100K) Cuencas and Sub-Cuencas from IMTA and UACJ for the Mexican side (1:250K) ** Hydrography (Stream network) to create HydroEdge. Source: USGS for USA (Scale 1:100K). Mexican Institute of Water Technology (IMTA), National Water Commission (CNA), University of Ciudad Juarez (UACJ), and INEGI for the Mexican side (Scale 1:250 K). ** Water Bodies and dams. This one includes their geographic position, inflows, and evaporation values fro the main dams located on this basin Source: USGS- HUC’S for the American side (1: 100K) Source: IMTA, CNA, and INEGI (1:250K) ** Digital Elevation Models Sources: USGS seamless format for the American side (grid 30 m cell size) INEGI – IMTA for the Mexican side (grid 104 m of cell size) ** Control Points. It includes water rights, gage stations, extractions, return flow points, Compaq points, etc. Source: Geographic position information from the TCEQ for the whole basin. Time series will be included in the ArcHydro format using information from the BANDAS Mexican software, USGS web site, and IBWC-CILA web site.

17. 17 Center for Research in Water Resources The University of Texas at Austin Regional HydroID This process will assign a unique regional HydroID for every feature classes within the Geodatabase This process will assign a unique regional HydroID for every feature classes within the Geodatabase The first digit (blue box) describe the Hydrological Region, number 1 for the American side and 2 for the Mexican side The first digit (blue box) describe the Hydrological Region, number 1 for the American side and 2 for the Mexican side The second two digits (yellow boxes) describe the Sub Region. The basin is divided in 9 sub regions on the American side and 7 sub regions for the Mexican side The second two digits (yellow boxes) describe the Sub Region. The basin is divided in 9 sub regions on the American side and 7 sub regions for the Mexican side The next two digits (red boxes) correspond to the feature class. The next two digits (red boxes) correspond to the feature class. – Control Point was assigned 01 – HydroEdge was assigned 02 – WaterBody was assigned 03 – Watershed was assigned 04 – And so on The last five digits (green boxes) will describe the feature number, which could reach 99 999 positions. The last five digits (green boxes) will describe the feature number, which could reach 99 999 positions.

18. 18 Center for Research in Water Resources The University of Texas at Austin Assigning regional HydroIDs to the Rio Conchos Basin

19. Center for Research in Water Resources The University of Texas at Austin WRAPHydro process

20. 20 Center for Research in Water Resources The University of Texas at Austin Objetivo The WRAPHydro tools are used to calculate hydrologic parameters as the average precipitation, average CN, drainage area, as well as the length down for the control points identified previously The WRAPHydro tools are used to calculate hydrologic parameters as the average precipitation, average CN, drainage area, as well as the length down for the control points identified previously One of the most important objective in this project was the implementation of the regionalization process. This step is fundamental when you need to calculate the hydrologic parameters mentioned above for large areas like the Rio Grande/Bravo basin. Because software limitations, it is not possible to apply the terrain analysis process for the whole basin using DEM, so it is necessary to divide it into several hydrological subregions. After WRAPHydro tools have been applied for each of them, it is possible to merge the results that now appear in vector format. One of the most important objective in this project was the implementation of the regionalization process. This step is fundamental when you need to calculate the hydrologic parameters mentioned above for large areas like the Rio Grande/Bravo basin. Because software limitations, it is not possible to apply the terrain analysis process for the whole basin using DEM, so it is necessary to divide it into several hydrological subregions. After WRAPHydro tools have been applied for each of them, it is possible to merge the results that now appear in vector format.

21. 21 Center for Research in Water Resources The University of Texas at Austin Geodatabase components The Feature class can be represented as points, lines or polygons

22. 22 Center for Research in Water Resources The University of Texas at Austin Geodatabase structure

23. 23 Center for Research in Water Resources The University of Texas at Austin WRAPHydro schema WRAPHydro regional structure

24. 24 Center for Research in Water Resources The University of Texas at Austin Rio Conchos connectivity River system was edited in ArcGIS in order to create the geometric network for every hydrological subregion River system was edited in ArcGIS in order to create the geometric network for every hydrological subregion

25. 25 Center for Research in Water Resources The University of Texas at Austin

26. 26 Delineation of the Rio Conchos basin

27. Center for Research in Water Resources The University of Texas at Austin Regionalization process for the Río Grande/Bravo basin DEMO in GIS

28. 28 Center for Research in Water Resources The University of Texas at Austin Future work for this project Update the Geodatabase when it is required Update the Geodatabase when it is required Time Series related to the control points and main dams will be included in the Geodatabase Time Series related to the control points and main dams will be included in the Geodatabase A relationship between the Control Points and their corresponding time series will be established in the Geodatabase A relationship between the Control Points and their corresponding time series will be established in the Geodatabase

29. 29 Center for Research in Water Resources The University of Texas at Austin Second phase of this project A Spatial Decision Support System will be developed in order to contribute to the improvement of water management and planning on the Rio Grande/Bravo basin. This SDSS will include simulation and optimization processes under several scenarios A Spatial Decision Support System will be developed in order to contribute to the improvement of water management and planning on the Rio Grande/Bravo basin. This SDSS will include simulation and optimization processes under several scenarios

30. 30 Center for Research in Water Resources The University of Texas at Austin Conclusiones It was possible to include geographic information from several international agencies inside a Geodatabase using a standard hydrologic data model that manages temporal and spatial information It was possible to include geographic information from several international agencies inside a Geodatabase using a standard hydrologic data model that manages temporal and spatial information The raster network regionalization process was applied successfully for the whole basin. A schematic diagram was created in order to show the connectivity in the basin. The raster network regionalization process was applied successfully for the whole basin. A schematic diagram was created in order to show the connectivity in the basin.

31. 31 Center for Research in Water Resources The University of Texas at Austin