Global evapotranspiration derived by ETMonitor model based on earth observations
| Autor: | Jing Lu, Chaolei Zheng, Kun Wang, Zhansheng Li, Li Jia, Guangcheng Hu |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
010504 meteorology & atmospheric sciences
Environmental change 0208 environmental biotechnology 02 engineering and technology Atmospheric sciences 01 natural sciences Arid Field (geography) 020801 environmental engineering Current (stream) Evapotranspiration Spatial ecology Environmental science Satellite Scale (map) 0105 earth and related environmental sciences Remote sensing |
| Zdroj: | IGARSS |
| DOI: | 10.1109/igarss.2016.7729049 |
| Popis: | Evapotranspiration (ET) is an important ecohydrological process especially in arid and semi-arid regions. In current study, a process-based model named ETMonitor was developed to estimate the ET, based mainly on the biophysical and hydrological parameters retrieved from satellite earth observations. And global daily ET from 2008 to 2012 with a spatial resolution of 1 km was estimated based on multi-source earth observations datasets. The estimated ET agreed well with the in situ observations at field scale, with R2 = 0.74, Bias = −0.05 mm d−1, RMSE = 0.87 mm d−1. The spatial patterns of estimated ET also agree well with the current available global ET products such as MOD16 and GLEAM. The ET products provide critical information on global terrestrial water and energy cycles and environmental change. |
| Databáze: | OpenAIRE |
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