Evaluating the surface temperature and vegetation index (Ts/VI) method for estimating surface soil moisture in heterogeneous regions
文献类型：期刊论文
| 作者 | Liu, Zhaofei; Yao, Zhijun; Wang, Rui |
| 刊名 | HYDROLOGY RESEARCH
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 49期号:3页码:689-699 |
| 关键词 | MODIS Qinghai-Tibetan Plateau remote sensing retrieval surface soil moisture surface temperature temperature vegetation dryness index |
| ISSN号 | 0029-1277 |
| DOI | 10.2166/nh.2017.079 |
| 通讯作者 | Yao, Zhijun(yaozj@igsnrr.ac.cn) |
| 英文摘要 | The surface temperature and vegetation index (Ts/VI) method is a remote sensing-based quantitative approach. It is widely used for estimating the evapotranspiration, evaporative fraction, and surface soil moisture (SSM). However, this method can only be used in flat regions. In this study, we investigated the effect of altitude when using the Ts/VI method for estimating the SSM in heterogeneous regions. The results showed that the temperature vegetation dryness index (TVDI) method performed poorly at estimating the SSM in the source region of the Yangtze River; there was a weak correlation with the observed SSM, and R-2 was only 0.167. However, the performance of the method improved considerably when the effects of both altitude and frozen soil were considered; the TVDI had a strong correlation with the observed SSM, and R-2 improved to 0.617. In the study area, the effects of altitude on the TVDI values were greater than those of the frozen soil. In general, the Ts/VI method can obtain satisfactory results in mountainous regions if the effects of both the altitude and frozen soil are considered. |
| WOS关键词 | TRIANGLE METHOD ; SPACE ; EVAPOTRANSPIRATION ; RETRIEVAL ; ALGORITHM ; DROUGHT |
| 资助项目 | National Natural Science Foundation of China[41571027] ; National Natural Science Foundation of China[41371058] ; National Natural Science Foundation of China[41190080] |
| WOS研究方向 | Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000452409900007 |
| 出版者 | IWA PUBLISHING |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/51369]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yao, Zhijun |
| 作者单位 | Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Zhaofei,Yao, Zhijun,Wang, Rui. Evaluating the surface temperature and vegetation index (Ts/VI) method for estimating surface soil moisture in heterogeneous regions[J]. HYDROLOGY RESEARCH,2018,49(3):689-699. |
| APA | Liu, Zhaofei,Yao, Zhijun,&Wang, Rui.(2018).Evaluating the surface temperature and vegetation index (Ts/VI) method for estimating surface soil moisture in heterogeneous regions.HYDROLOGY RESEARCH,49(3),689-699. |
| MLA | Liu, Zhaofei,et al."Evaluating the surface temperature and vegetation index (Ts/VI) method for estimating surface soil moisture in heterogeneous regions".HYDROLOGY RESEARCH 49.3(2018):689-699. |
入库方式： OAI收割
来源：地理科学与资源研究所
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