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United States Department of Agriculture

Agricultural Research Service

Research Project: Utility of Thermal-Based Two-Source Model for Routine Evapotranspiration Estimation of Vineyards

Location: Hydrology and Remote Sensing Laboratory

Project Number: 1245-13610-028-51
Project Type: Trust

Start Date: Mar 01, 2013
End Date: Feb 28, 2017

Objective:
Evaluate and refine thermal-based remote sensing models and develop operational tools for quantifying water use (evapotranspiration) and root zone water availability and stress of vineyards for improved water management while maintaining grape productivity and quality.

Approach:
Conduct intensive field experiments collecting evapotranspiration (ET), root zone soil moisture and biophysical data in concert with high resolution aircraft remote sensing imagery provided by Utah State University (Collaborator). The remote sensing imagery from aircraft and satellite sensors will be used to evaluate and refine remote sensing-based ET models for quantifying vineyard water use and vine stress/condition at different vine phenological stages. The high resolution aircraft imagery will be used to distinguish vine and cover crop contributions to total water use and root zone water availability as well as the capability of using coarser resolution satellite data with thermal sharpening techniques to provide separate vine and cover crop contributions to total ET.

Last Modified: 4/19/2014
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