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FORECASTING IN RIO GRANDE BASIN Nathan Coombs Manager Conejos - PowerPoint PPT Presentation

May 21, 2023 •233 likes •345 views

DATA COLLECTION TO IMPROVE FORECASTING IN RIO GRANDE BASIN Nathan Coombs Manager Conejos Water Conservancy District 235,000 66,000 Annual obligation 78,400 255,000 Annual Obligation In order to asses the possibility of changing a

  1. DATA COLLECTION TO IMPROVE FORECASTING IN RIO GRANDE BASIN Nathan Coombs Manager Conejos Water Conservancy District

  2. 235,000 66,000 Annual obligation

  3. 78,400 255,000 Annual Obligation

  4. In order to asses the possibility of changing a compact curtailment: -- compared to same day’s historical avg flows. lower water higher water just cold hotter temps Reasons : OR water is not up there more water than expected OR

  5. Gaps in understanding

  6. How do you collect better data? Manual collection is time and labor intensive and not possible in wilderness or remote areas

  7. Ground Validation & Streamflow Measurement Sites Planned river stage Planned met. station Existing met. station

  8. NSSL: Alamosa

  9. Project in a Nutshell • Deploy more instrumentation where possible • ASO creates a 3D model of entire basin’s topography • Use truck mounted radar to “see” and measure a winter’s worth of snow events • UCAR integrates data into WRF Hydro model • DWR can more accurately answer; • “Why is stream flow today below or above historical averages,..hotter , colder, more water, or less water?” • Is an adjustment to curtailment and forecast necessary?

  10. “It’s all related……. Thank You!!

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