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Water Balance for the Forgotten River Segment of the Rio Grande/Bravo

Water Balance for the Forgotten River Segment of the Rio Grande/Bravo. Rebecca Teasley May 3, 2005 Surface Water Hydrology. Outline. Forgotten River Basin Data Sources NARR to ArcGIS June 1981 Rainfall Comparison Conclusions. The Forgotten River. Data Sources. NCDC Rain Gages

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Water Balance for the Forgotten River Segment of the Rio Grande/Bravo

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  1. Water Balance for the Forgotten River Segment of the Rio Grande/Bravo Rebecca Teasley May 3, 2005 Surface Water Hydrology

  2. Outline • Forgotten River Basin • Data Sources • NARR to ArcGIS • June 1981 Rainfall Comparison • Conclusions

  3. The Forgotten River

  4. Data Sources • NCDC Rain Gages • IMTA Rain Gages (Mexican Institute of Technology) • IBWC Stream Gages • NARR Evaporation & Precipitation Data

  5. Forgotten River Basin Upper Basin – 8030 km2 Lower Basin – 8550 km2

  6. Stream Gages El Paso Ft. Quitman Presidio

  7. El Paso Ft. Quitman Presidio NCDC & IMTA Rain Gages

  8. NARR to GIS Methodology Web Browser Excel Visual Basic Excel Arc Hydro Feature Class with Time Series

  9. NARR to GIS http://nomads.ncdc.noaa.gov:9091/dods/

  10. http://nomads.ncdc.noaa.gov:9091/dods/NCEP_NARR-A_MONTHLY_3hrhttp://nomads.ncdc.noaa.gov:9091/dods/NCEP_NARR-A_MONTHLY_3hr

  11. http://nomads.ncdc.noaa.gov:9091/dods/NCEP_NARR-A_MONTHLY_3hr/197901/19790101/http://nomads.ncdc.noaa.gov:9091/dods/NCEP_NARR-A_MONTHLY_3hr/197901/19790101/

  12. Change .info to .ascii?acpc[0][0][0] Returns the precipitation value at: Time 0:00Z Latitude 0.0 Longitude -220.0

  13. NARR Domain • Longitude: -220°E to -0.625°E  [0:586] • Latitude: 0°N to 89.625°N  [0:240] • Altitude: 1000 to 100  [0:29] • Time: 00Z to 21Z01 [0:8]

  14. .ascii?.apcp[0:7][77:86][301:308] NARR Variable Time Array Latitude Array Longitude Array Returns arrays of precipitation values over the Forgotten River for all 8 time periods in the NARR Monthly-3hr

  15. NARR Grid

  16. NDCD/IMTA IDW Interpolation

  17. NARR Kriging Interpolation

  18. Lower Basin-June 1981

  19. Upper Basin – June 1981

  20. Average Precipitation

  21. NCDC/IMTA NARR

  22. Conclusions / Future Work • Conclusions • Forgotten River is an appropriate name • More analysis of NARR and rain gage data is needed to draw conclusions • Future Work • Complete Monthly Water Balances for 1981

  23. Acknowledgements • Jon Godall • Carlos Patino • Dr. David Maidment • My Real Estate Agent & Mortgage Broker for Helping Close on My First House Yesterday

  24. Questions?

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