Chris Ingenloff 22 November 2011

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Presentation transcript:

Chris Ingenloff 22 November 2011 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

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

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

Watershed Statistics

Methodology Water Balance dSoil Moisture = Precipitation – Runoff – Evapotranspiration Spatial Moisture Content Prediction Soil Recovery Coefficient Quantitative Impact of Critical Moisture Content Soil Hydraulic Properties (raster) Statistical Precipitation Model Runoff/Flow Correlation Statistical Temperature Model Statistical ET Analysis

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

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