Automated Basin-wide ET Estimation Using the SEBS Method to Improve Groundwater Sustainability Plan Development
Abstract
Remote sensing of evapotranspiration (ET) provides a viable tool for assessing the spatial distribution of actual ET for water resource allocation, optimization of agricultural water use, and evaluation of the effect of management changes and water policies on the water balance. However, for seamless integration of remote sensing of ET data into hydrologic analysis, automation of the entire work flow of ET mapping is required. This work is driven by the need for rapid and systematic hydrologic budget development across California's Sustainable Groundwater Management Act (SGMA) designated basins. The objective was to develop an automated evapotranspiration (ET) tool based on the Surface Energy Balance System (SEBS) using Landsat-8 imagery and observations from the California Irrigation Management Information System (CIMIS) to assist in initial basin-wide hydrologic budgets. This tool can help improve understanding of the ET component of hydrologic budgets in any part of the globe where satellite imagery and hourly meteorological measurements (similar to CIMIS observations) are available.
- Publication:
-
AGU Fall Meeting Abstracts
- Pub Date:
- December 2019
- Bibcode:
- 2019AGUFM.H21C..08R
- Keywords:
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- 1818 Evapotranspiration;
- HYDROLOGY;
- 1847 Modeling;
- HYDROLOGY;
- 1855 Remote sensing;
- HYDROLOGY;
- 1895 Instruments and techniques: monitoring;
- HYDROLOGY