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Evaluation of SMAP, SMOS, and AMSR2 soil moisture retrievals against observations from two networks on the Tibetan Plateau
Chen, Yingying; Yang, Kun; Qin, Jun; Cui, Qian; Lu, Hui; La, Zhu; Han, Menglei; Tang, Wenjun; Chen, YY (reprint author), Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface, Beijing, Peoples R China.
Department微波遥感部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
2017
Volume122Issue:11Pages:5780-5792
ISSN2169-897X
Language英语
KeywordSatellite Soil Moisture Products Soil Moisture Networks Tibetan Plateau Evaluation
AbstractTwo soil moisture and temperature monitoring networks were established in the Tibetan Plateau (TP) during recent years. One is located in a semihumid area (Naqu) of central TP and consists of 56 soil moisture and temperature measurement (SMTM) stations, the other is located in a semiarid area (Pali) of southern TP and consists of 21 SMTM stations. In this study, the station data are used to evaluate soil moisture retrievals from three microwave satellites, i.e., the Soil Moisture Active Passive (SMAP) of NASA, the Soil Moisture and Ocean Salinity (SMOS) of European Space Agency, and the Advanced Microwave Scanning Radiometer 2 (AMSR2) of Japan Aerospace Exploration Agency. It is found that the SMAP retrievals tend to underestimate soil moisture in the two TP networks, mainly due to the negative biases in the effective soil temperature that is derived from a climate model. However, the SMAP product well captures the amplitude and temporal variation of the soil moisture. The SMOS product performs well in Naqu network with acceptable error metrics but fails to capture the temporal variation of soil moisture in Pali network. The AMSR2 products evidently exaggerate the temporal variation of soil moisture in Naqu network but dampen it in Pali network, suggesting its retrieval algorithm needs further improvements for the TP.
Indexed BySCI ; EI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/6003
Collection微波遥感部
Corresponding AuthorChen, YY (reprint author), Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Chen, Yingying,Yang, Kun,Qin, Jun,et al. Evaluation of SMAP, SMOS, and AMSR2 soil moisture retrievals against observations from two networks on the Tibetan Plateau[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(11):5780-5792.
APA Chen, Yingying.,Yang, Kun.,Qin, Jun.,Cui, Qian.,Lu, Hui.,...&Chen, YY .(2017).Evaluation of SMAP, SMOS, and AMSR2 soil moisture retrievals against observations from two networks on the Tibetan Plateau.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(11),5780-5792.
MLA Chen, Yingying,et al."Evaluation of SMAP, SMOS, and AMSR2 soil moisture retrievals against observations from two networks on the Tibetan Plateau".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.11(2017):5780-5792.
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