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学科主题: 地理学::自然地理学
题名: Evaluation of SMAP, SMOS, and AMSR2 soil moisture retrievals against observations from two networks on the Tibetan Plateau
作者: Chen, YY (Chen, Yingying)1, 4; Yang, K (Yang, Kun)2, 3, 4; Qin, J (Qin, Jun)1; Cui, Q (Cui, Qian)5; Lu, H (Lu, Hui)2, 3; La, Z (La, Zhu)1, 6; Han, ML (Han, Menglei)2, 3; Tang, WJ (Tang, Wenjun)1, 4
通讯作者: Chen, YY
关键词: LAND DATA ASSIMILATION ; WATER CYCLE ; VALIDATION ; MODEL ; PRODUCTS ; PRECIPITATION ; VEGETATION ; PARAMETERS ; DEPENDENCE ; AUSTRALIA
刊名: JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
发表日期: 2017
DOI: 10.1002/2016JD026388
卷: 122, 期:11, 页:5780-5792
收录类别: SCI
合作性质: 国内
文章类型: Article
类目[WOS]: Meteorology & Atmospheric Sciences ; Meteorology & Atmospheric Sciences
研究领域[WOS]: Meteorology & Atmospheric Sciences
英文摘要: Two 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.
语种: 英语
WOS记录号: WOS:000404131800014
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.itpcas.ac.cn/handle/131C11/8056
Appears in Collections:图书馆_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Tibetan Environm Changes & Land Surface, Beijing, Peoples R China.
2.Tsinghua Univ, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.
3.Tsinghua Univ, Ctr Earth Syst Sci, Beijing, Peoples R China.
4.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing, Peoples R China.
5.Chinese Acad Sci, Natl Space Sci Ctr, Beijing, Peoples R China.
6.Univ Chinese Acad Sci, Coll Earth Sci, Beijing, Peoples R China.

Recommended Citation:
Chen, YY ,Yang, K ,Qin, J ,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.
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