OpenET: Filling a Critical Data Gap in Water Management for the Western United States

作者：Forrest Melton, Justin Huntington, R. Grimm, Jamie Herring, Maurice Hall, Dana E. Rollison, Tyler Erickson, Richard G. Allen, Martha C. Anderson, Joshua B. Fisher, Ayşe Kiliç, G. B. Senay, John Volk, Christopher Hain, Lee Johnson, Anderson Ruhoff, Philip A. Blankenau, Matt Bromley, Will Carrara, B. Daudert, Conor T. Doherty, Christian Dunkerly, MacKenzie Friedrichs, Alberto Guzman, Gregory Halverson, Jody Hansen, Jordan Harding, Yanghui Kang, David Ketchum, Blake Minor, Charles Morton, Samuel Ortega‐Salazar, Thomas Ott, Mutlu Özdoğan, Peter ReVelle, Mitch Schull, Carlos Wang, Yun Yang, Ray G. Anderson · 发表于：JAWRA Journal of the American Water Resources Association · 年份：2021 · DOI：10.1111/1752-1688.12956 · 被引用次数：303 · 研究领域：Plant Water Relations and Carbon Dynamics、Water resources management and optimization、Hydrology and Watershed Management Studies

Abstract The lack of consistent, accurate information on evapotranspiration (ET) and consumptive use of water by irrigated agriculture is one of the most important data gaps for water managers in the western United States (U.S.) and other arid agricultural regions globally. The ability to easily access information on ET is central to improving water budgets across the West, advancing the use of data‐driven irrigation management strategies, and expanding incentive‐driven conservation programs. Recent advances in remote sensing of ET have led to the development of multiple approaches for field‐scale ET mapping that have been used for local and regional water resource management applications by U.S. state and federal agencies. The OpenET project is a community‐driven effort that is building upon these advances to develop an operational system for generating and distributing ET data at a field scale using an ensemble of six well‐established satellite‐based approaches for mapping ET. Key objectives of OpenET include: Increasing access to remotely sensed ET data through a web‐based data explorer and data services; supporting the use of ET data for a range of water resource management applications; and development of use cases and training resources for agricultural producers and water resource managers. Here we describe the OpenET framework, including the models used in the ensemble, the satellite, meteorological, and ancillary data inputs to the system, and the OpenET data visuali...