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Data Infrastructure for Wide-Area Hydrologic Modeling

Data Infrastructure for Wide-Area Hydrologic Modeling. Greg Husak and Guleid Artan. Potential Evapo-Transpiration (PET). Computed daily from Global Data Assimulation System (GDAS) data (generated every 6hrs) Penman Monteith Equation solved to obtain PET values Spatial domain: Global

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Data Infrastructure for Wide-Area Hydrologic Modeling

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  1. Data Infrastructure for Wide-Area Hydrologic Modeling Greg Husak and Guleid Artan

  2. Potential Evapo-Transpiration (PET) • Computed daily from Global Data Assimulation System (GDAS) data (generated every 6hrs) • Penman Monteith Equation solved to obtain PET values • Spatial domain: Global • Spatial Resolution: 100 km grids (1o) • Data Availability: ftp://edcftp.cr.usgs.gov/pub/edcuser/fewsips

  3. Global PET for 2004 • ftp://edcftp.cr.usgs.gov/pub/edcuser/fewsips/

  4. Daily NOAA RFE Data Windows • ftp://edcftp.cr.usgs.gov/pub/edcuser/fewsips/

  5. Air Force Weather Agency Data Windows (AFWA / NCAR / PSU MM5 Model) • ftp://edcftp.cr.usgs.gov/pub/edcuser/fewsips/

  6. HYDRO1K Elevation Derivative Dataset http://edc.usgs.gov/products/elevation/gtopo30/hydro/index.html

  7. USGS Global Land Cover Characterization Dataset http://edcsns17.cr.usgs.gov/glcc/

  8. Dynamic Geographic Database Relational Database of Time Series Gridded Rainfall GriddedQPF 1D time series of rainfall, PET, soil water, runoff and flow PET Fields GeoSFM Database Components Static Geographic Database FAO Soil Data • Subbasins are the modeling units for water balance and routing • Uniform naming convention used to identify rain and PET grids • Dams and gauges identified by unique id as well as subbasin id Land Use/ Land Cover Elevation Data Vector Data such as rivers, basins,gauges…

  9. Continental Flood Risk Monitoring

  10. Improved Model Precipitation • Integrating available station data with satellite model could yield improved rainfall estimates at daily or sub-daily timesteps • Preliminary work suggests good improvements at monthly and dekadal timesteps • Improved precipitation inputs could lead to improved flood models

  11. Improved Rainfall at Watershed Level

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