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ARS Home » Northeast Area » Beltsville, Maryland (BARC) » Beltsville Agricultural Research Center » Hydrology and Remote Sensing Laboratory » Research » Research Project #431979

Research Project: Application of a Thermal-Based Two-Source Energy Balance Model Output of Evapotranspiration.....Scheduling and Enhance Water Resource Conservation

Location: Hydrology and Remote Sensing Laboratory

Project Number: 8042-13610-029-97-T
Project Type: Trust Fund Cooperative Agreement

Start Date: Dec 1, 2016
End Date: Nov 30, 2021

Objective:
Apply the refined thermal-based two-source energy balance models and tools for quantifying water use (evapotranspiration) and root zone water availability and stress of vineyards to E&J Gallo vineyards using airborne and satellite remote sensing data and use the model output to improve water conservation management and irrigation scheduling decisions for greater water use efficiency while sustaining grape productivity and quality.

Approach:
Based on prior intensive field experiments collecting evapotranspiration (ET), root zone soil moisture and biophysical data in concert with high resolution aircraft remote sensing imagery and coarser resolution satellite data the refined thermal-based two-source energy balance model for quantifying vineyard ET and vine stress/condition at different vine physiological stages will be used as input to E&J Gallo’s water management and irrigation scheduling tools for improved water use efficiency and conservation. The high resolution aircraft imagery will be used to evaluate the utility of having episodic earth observations distinguishing vine and cover crop contributions to total water use and root zone water availability as well as used in testing the capability of applying coarser resolution satellite data with thermal sharpening techniques to provide separate vine and cover crop contributions to total ET.