H026-08
Estimating vineyard water use with remote sensing: Lessons learned from the GRAPEX project
Monday, 7 December 2020: 20:58
Virtual
William P Kustas1, Kyle Knipper1, Martha Anderson2, Joseph G Alfieri1, Maria Mar Alsina3, Alfonso F Torres-Rua4, Lynn McKee1, John H Prueger5, Lawrence Hipps6, Andrew J McElrone7, Nicolas E Bambach-Ortiz8, Feng Gao9, Hector Nieto10, William Alexander White11, Christopher Hain12, Nurit Agam13, Karrin Alstad14, Wade T Crow15, Fangni Lei16, Arnon Karnieli17, Luis Sanchez3, Nick Dokoozlian3 and Forrest S Melton18, (1)U. S. Department of Agriculture, Agricultural Research Service, Hydrology and Remote Sensing Laboratory, Beltsville, MD, United States, (2)USDA ARS Hydrology and Remote Sensing Laboratory, Beltsville, MD, United States, (3)E&J Gallo, Modesto, United States, (4)Utah State University, Department of Civil and Environmental Engineering, Logan, UT, United States, (5)U. S. Department of Agriculture, Agricultural Research Service, National Laboratory for Agriculture and Environment, Ames, IA, United States, (6)Utah State University, Plants, Soils and Climate Department, Logan, UT, United States, (7)USDA ARS, Department of Viticulture and Enology, UC Davis, Davis, CA, United States, (8)University of California Davis, Davis, CA, United States, (9)USDA-Agricultural Research Service Beltsville, Hydrology and Remote Sensing, Beltsville, MD, United States, (10)Complutum Tecnologías de la Información Geográfica S.L. (COMPLUTIG), Alcalá de Henares (Madrid), Spain, (11)USDA-ARS Hydrology and Remote Sensing Laboratory, Beltsville, MD, United States, (12)National Integrated Drought Information System, Boulder, CO, United States, (13)Jacob Blaustein Institutes for Desert Research, Sed-Boker, Israel, (14)UC Davis, Department of Viticulture and Enology, Davis, CA, United States, (15)USDA ARS Hydrology and Remote Sensing Lab, Beltsville, MD, United States, (16)USDA ARS Hydrol and Remote Sensing Lab, Beltsville, MD, United States, (17)Jacob Blaustein Institutes for Desert Research, Sde Boker, Israel, (18)CSU Monterey Bay, NASA ARC-CREST, Seaside, CA, United States
Abstract:
The Grape Remote sensing Atmospheric Profile and Evapotranspiration eXperiment (GRAPEX) has a goal of developing remote sensing-based evapotranspiration (ET) toolkit using earth observations for monitoring vineyard water use and stress from with-in vineyard block to regional scales in the California Central Valley. This information is key to improving water use efficiency and water conservation in such water limited environments in order to have a sustainable agroecosystem. Through this research project, new insights and understandings of vine physiology, water, carbon and energy exchange processes and relationships between remote sensing retrieval algorithms of vine biomass, cover and land surface temperature have emerged. The unique canopy architecture, row structure and large interrow spacing often with a cover crop make for a challenging system to model ET with remote sensing. This presentation will provide a summary of key GRAPEX findings from insitu and remote sensing measurements from the leaf and canopy level to the field and landscape scales in estimating vine water use and stress. In addition, future research directions involving new sensor technologies will be presented and discussed.
