Estimation of Soil Evaporation and Vegetation Transpiration Using Two Trapezoidal Models From MODIS Data

doi:10.1029/2019JD030542

	Estimation of Soil Evaporation and Vegetation Transpiration Using Two Trapezoidal Models From MODIS Data
	Jiang, Yazhen 3,4,5; Tang, Ronglin 3,4; Jiang, Xiaoguang 1,4; Li, Zhao-Liang 2,3,5; Gao, Caixia 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
	2019-07-27
卷号	124 期号:14 页码:7647-7664
关键词	evapotranspiration soil evaporation vegetation transpiration MODIS trapezoidal models
ISSN号	2169-897X
DOI	10.1029/2019JD030542
通讯作者	Jiang, Yazhen(jiangyazhen15@mails.ucas.edu.cn) ; Tang, Ronglin(trl_wd@163.com) ; Jiang, Xiaoguang(xgjiang@ucas.ac.cn)
英文摘要	Soil evaporation (ETs) and vegetation transpiration (ETv) are essential in evaporative demand analyses and agricultural applications. This study estimated ETs and ETv using two trapezoidal models, that is, the conventional trapezoidal model and the end-member-based soil and vegetation energy partitioning (ESVEP) model, at three AmeriFlux tower sites. First, the land surface temperature of a Moderate Resolution Imaging Spectroradiometer (MODIS) pixel was decomposed into soil and vegetation temperatures (T-s and T-v, respectively) which involve important information related to ETs and ETv and were compared with corresponding temperatures from the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER). Then ETs and ETv were parameterized, and the total evapotranspiration (ET) was validated with the eddy covariance system measurements after energy imbalance corrections via the residual energy and Bowen ratio methods. The results showed that the ESVEP model partitioned T-s, with a root-mean-square error (RMSE) of 1.56-2.70 K (4.98-10.16%), and T-v, with an RMSE of 2.54-2.80 K (9.73-11.11%), indicating a higher accuracy than that from the conventional trapezoidal model, where the RMSE was 2.26-3.64 K (7.31-13.40%) for T-s separation and 2.82-4.62 K (9.80-15.49%) for T-v separation. For the ET estimation, the ESVEP model still performed better. The estimation RMSE was 49.8-58.4 W/m(2) (22.8-27.2%) for the ESVEP model and 72.0-89.5 W/m(2) (29.8-41.1%) for the conventional trapezoidal model, compared to the RE corrected measurements; the RMSE was 42.6-53.3 W/m(2) (24.4-28.1%) for the ESVEP model and 57.5-78.1 W/m(2) (32.3-37.9%) for the conventional trapezoidal model, compared to the Bowen ratio corrected measurements.
资助项目	National Natural Science Foundation of China[41571351] ; National Natural Science Foundation of China[41571352] ; National Natural Science Foundation of China[41571367] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040403] ; Youth Innovation Promotion Association CAS[2015039] ; China Scholarship Council
WOS关键词	LAND-SURFACE TEMPERATURE ; ENERGY-BALANCE ; EVAPOTRANSPIRATION ; WATER ; ALGORITHM ; MOISTURE ; FLUXES ; CARBON
WOS研究方向	Meteorology & Atmospheric Sciences
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000481444200012
资助机构	National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; China Scholarship Council
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/68854]
专题	中国科学院地理科学与资源研究所
通讯作者	Jiang, Yazhen; Tang, Ronglin; Jiang, Xiaoguang
作者单位	1.Chinese Acad Sci, Acad Optoelect, Key Lab Quantitat Remote Sensing Informat Technol, Beijing, Peoples R China 2.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Agriinformat, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Envonment Informat Syst, Beijing, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 5.CNRS, UdS, Icube UMR7357, Illkirch Graffenstaden, France
推荐引用方式 GB/T 7714	Jiang, Yazhen,Tang, Ronglin,Jiang, Xiaoguang,et al. Estimation of Soil Evaporation and Vegetation Transpiration Using Two Trapezoidal Models From MODIS Data[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2019,124(14):7647-7664.
APA	Jiang, Yazhen,Tang, Ronglin,Jiang, Xiaoguang,Li, Zhao-Liang,&Gao, Caixia.(2019).Estimation of Soil Evaporation and Vegetation Transpiration Using Two Trapezoidal Models From MODIS Data.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,124(14),7647-7664.
MLA	Jiang, Yazhen,et al."Estimation of Soil Evaporation and Vegetation Transpiration Using Two Trapezoidal Models From MODIS Data".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 124.14(2019):7647-7664.