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Texas Drought Assessment and Forecasting. David R. Maidment Center for Research in Water Resources University of Texas at Austin. Water Web Services Jamboree University of Texas at Austin 20 March 2012. Electric Reliability Council of Texas (ERCOT). http://www.ercot.com/news/mediakit/maps/.

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texas drought assessment and forecasting

Texas Drought Assessment and Forecasting

David R. MaidmentCenter for Research in Water ResourcesUniversity of Texas at Austin

Water Web Services JamboreeUniversity of Texas at Austin

20 March 2012

electric reliability council of texas ercot
Electric Reliability Council of Texas (ERCOT)

http://www.ercot.com/news/mediakit/maps/

standardized precipitation index spi
Standardized Precipitation Index (SPI)

Source: John Neilsen-Gammon, Texas A&M University

weekly change in spi
Weekly Change in SPI

Source: John Neilsen-Gammon, Texas A&M University

slide6

(Byron Tapley, UT Center for Space Research)

Source:

http://www.jsg.utexas.edu/ciess/files/Water_Forum_01_Tapley.pdf

slide7
Ensemble Streamflow Simulations for 2012Produced by National Weather Service, distributed by University of Texas at Austin and Kisters
  • 348 forecast points
    • Including reservoir inflows
  • 11 basins
  • Based on weather 1959-2009
    • 50 scenarios of daily flows for each point generated from an NWS rainfall-runoff model (with reservoirs included)
  • 90+ days horizon from today (to end of summer)
  • Updated weekly

Basins

slide9

Overlay Plot of 2010, 2011, 2012 for Jan to May

Colorado River at Austin

May

March

Jan

accumulated inflow 2007 2012 highland lake system1
Accumulated Inflow, 2007 – 2012Highland Lake System

30 year normal lake accumulation

actual lake accumulation

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