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A Full Satellite-Driven Method for the Retrieval of Clear-Sky Evapotranspiration

文献类型：期刊论文

作者Leng, Pei4; Liao, Qian-Yu1,4; Gao, Mao-Fang4; Duan, Si-Bo4; Li, Zhao-Liang2,4; Zhang, Xia3; Shang, Guo-Fei3
刊名EARTH AND SPACE SCIENCE
出版日期2019-12-04
页码12
关键词evapotranspiration satellite-driven temperature-vegetation trapezoidal feature space two-stage
DOI10.1029/2019EA000869
通讯作者Li, Zhao-Liang(lizl@unistra.fr) ; Shang, Guo-Fei(shangguofei@hgu.edu.cn)
英文摘要Evapotranspiration (ET) plays an important role in the soil-vegetation-atmosphere system for its considerable effect in surface energy balance and water cycle. The determination of ET based on full satellite data has been a challenge. In the present study, a full satellite-driven method is proposed based on a newly developed pixel-to-pixel scheme of the land surface temperature-vegetation index trapezoidal feature space in the presence of clear-sky conditions. For the implementation of this approach, the three main meteorological parameters of net surface radiation, air temperature, and relative humidity were obtained solely based on satellite observations. With the exception of the three main satellite-derived meteorological parameters, different wind speed data-including actual measurements, the assimilated product, and an averaged value of meteorological observations-were used to investigate their effects on the retrieval of ET. Specifically, two pixel-to-pixel trapezoidal feature space schemes, namely an original and a two-stage scheme, were implemented to estimate ET over an arid region of the study area located in the northwest part of China. Comparison of the estimated ET with the values acquired from the eddy covariance systems yielded a reliable accuracy response with root-mean-squared errors of similar to 80 W/m(2) and similar to 70 W/m(2) for the original and two-stage trapezoidal methods with satellite-derived inputs, respectively, and constant wind speed data over the growing 2012 season from May to September. These results indicate that the full satellite-driven method is capable of estimating ET over the arid region of the study area.
WOS关键词AIR-TEMPERATURE ; SURFACE EVAPOTRANSPIRATION ; ENERGY FLUXES ; SOIL-MOISTURE ; RADIATION ; SYSTEM ; MODEL
资助项目National Natural Science Foundation of China[41601397] ; National Natural Science Foundation of China[41571367] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0304] ; Fundamental Research Funds for Central Non-profit Scientific Institution[1610132019012]
WOS研究方向Astronomy & Astrophysics ; Geology
语种英语
WOS记录号WOS:000500428800001
出版者AMER GEOPHYSICAL UNION
资助机构National Natural Science Foundation of China ; Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; Fundamental Research Funds for Central Non-profit Scientific Institution
源URL[http://ir.igsnrr.ac.cn/handle/311030/130375]  
专题中国科学院地理科学与资源研究所
通讯作者Li, Zhao-Liang; Shang, Guo-Fei
作者单位1.Guilin Univ Technol, Guangxi Key Lab Spatial Informat & Geomat, Coll Geomat & Geoinformat, Guilin, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing, Peoples R China
3.Hebei GEO Univ, Sch Land Resources & Urban Rural Planning, Shijiazhuang, Hebei, Peoples R China
4.Chinese Acad Agr Sci, Key Lab Agr Remote Sensing, Minist Agr & Rural Affairs, Inst Agr Resources & Reg Planning, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Leng, Pei,Liao, Qian-Yu,Gao, Mao-Fang,et al. A Full Satellite-Driven Method for the Retrieval of Clear-Sky Evapotranspiration[J]. EARTH AND SPACE SCIENCE,2019:12.
APA Leng, Pei.,Liao, Qian-Yu.,Gao, Mao-Fang.,Duan, Si-Bo.,Li, Zhao-Liang.,...&Shang, Guo-Fei.(2019).A Full Satellite-Driven Method for the Retrieval of Clear-Sky Evapotranspiration.EARTH AND SPACE SCIENCE,12.
MLA Leng, Pei,et al."A Full Satellite-Driven Method for the Retrieval of Clear-Sky Evapotranspiration".EARTH AND SPACE SCIENCE (2019):12.

入库方式： OAI收割

来源：地理科学与资源研究所

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