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Effects of the 2011 Texas Drought on Soil Moisture Capacity in the Somerville Watershed

Effects of the 2011 Texas Drought on Soil Moisture Capacity in the Somerville Watershed. Chris Ingenloff 22 November 2011. Agenda. Introduction Background Problem Definition Watershed Statistics Methodology Required Work. Introduction. Brazos River Basin Lake Somerville Watershed.

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Effects of the 2011 Texas Drought on Soil Moisture Capacity in the Somerville Watershed

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  1. Effects of the 2011 Texas Drought on Soil Moisture Capacity in the Somerville Watershed Chris Ingenloff 22 November 2011

  2. Agenda • Introduction • Background • Problem Definition • Watershed Statistics • Methodology • Required Work

  3. Introduction • Brazos River Basin • Lake Somerville Watershed

  4. Background • Texas 2011 Drought • High temperatures • Low precipitation • Record low reservoir levels • High demand for sustained soil moisture • Similar conditions expected for the next 1-2 years

  5. The Problem • Soil Recovery and “Memory” • Porosity • Field Capacity • Wilting Point • Residual Moisture Content

  6. Watershed Statistics

  7. Methodology • Water Balance • dSoil Moisture = Precipitation – Runoff – Evapotranspiration

  8. Required Work • Evapotranspiration Statistical Analysis • MODIS Toolbox • LDAS Soil Data to Raster • Evaluate

  9. Questions?

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