KMS Institute Of Geographic Sciences And Natural Resources Research,CAS
| Estimation of Soil Evaporation and Vegetation Transpiration Using Two Trapezoidal Models From MODIS Data | |
Jiang, Yazhen1,2,3; Tang, Ronglin1,2 ; Jiang, Xiaoguang2,4; Li, Zhao-Liang1,3,5; Gao, Caixia4
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| 2019-07-27 | |
| Source Publication | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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| ISSN | 2169-897X |
| Volume | 124Issue:14Pages:7647-7664 |
| Corresponding Author | Jiang, Yazhen(jiangyazhen15@mails.ucas.edu.cn) ; Tang, Ronglin(trl_wd@163.com) ; Jiang, Xiaoguang(xgjiang@ucas.ac.cn) |
| Abstract | 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. |
| Keyword | evapotranspiration soil evaporation vegetation transpiration MODIS trapezoidal models |
| DOI | 10.1029/2019JD030542 |
| WOS Keyword | LAND-SURFACE TEMPERATURE ; ENERGY-BALANCE ; EVAPOTRANSPIRATION ; WATER ; ALGORITHM ; MOISTURE ; FLUXES ; CARBON |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 |
| Funding Organization | National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Youth Innovation Promotion Association CAS ; China Scholarship Council |
| WOS Research Area | Meteorology & Atmospheric Sciences |
| WOS Subject | Meteorology & Atmospheric Sciences |
| WOS ID | WOS:000481444200012 |
| Publisher | AMER GEOPHYSICAL UNION |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.igsnrr.ac.cn/handle/311030/68855 |
| Collection | 中国科学院地理科学与资源研究所 |
| Corresponding Author | Jiang, Yazhen; Tang, Ronglin; Jiang, Xiaoguang |
| Affiliation | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Envonment Informat Syst, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing, Peoples R China 3.CNRS, UdS, Icube UMR7357, Illkirch Graffenstaden, France 4.Chinese Acad Sci, Acad Optoelect, Key Lab Quantitat Remote Sensing Informat Technol, Beijing, Peoples R China 5.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Agriinformat, Beijing, Peoples R China |
| Recommended Citation 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. |
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