Intercomparison of two trapezoid-based soil moisture downscaling methods using three scaling factors
文献类型：期刊论文
| 作者 | Tian, Jing1 ; Deng, Xiangzheng2; Su, Hongbo1,3
|
| 刊名 | INTERNATIONAL JOURNAL OF DIGITAL EARTH
 |
| 出版日期 | 2019-04-03 |
| 卷号 | 12期号:4页码:485-499 |
| 关键词 | Soil moisture downscaling trapezoid-based method scaling factor |
| ISSN号 | 1753-8947 |
| DOI | 10.1080/17538947.2018.1447031 |
| 通讯作者 | Tian, Jing(tianj.04b@igsnrr.ac.cn) |
| 英文摘要 | This paper compared two soil moisture downscaling methods using three scaling factors. Level 3 soil moisture product of advanced microwave scanning radiometer for EOS (AMSR-E) is downscaled from 25 to 1 km. The downscaled results are compared with the soil moisture observations from polarimetric scanning radiometer (PSR) microwave radiometer and field sampling. The results show that (1) the scaling factor of normalized soil thermal inertia (NSTIs) and vegetation temperature condition index (VTCI) are better than soil evaporative efficiency in reflecting soil moisture; (2) for method 1, NSTIS is the best in the downscaling of soil moisture. For method 2, VTCI is the best; (3) no significant differences of the correlation coefficients (R-2) and the biases were found between the two methods for the same scaling factors. However, method 2 shows a better potential than method 1 in the time-series applications of the downscaling of soil moisture; (4) compared with the relationship between the area-averaged soil moisture of AMSR-E and that of PSR, R-2 of the 6 sets of the downscaled soil moisture almost do not decrease, which suggests the validity of the downscaling of soil moisture with the two downscaling methods using the three scaling factors. |
| WOS关键词 | IMPROVING SPATIAL REPRESENTATION ; AMSR-E ; THERMAL INERTIA ; HIGH-RESOLUTION ; DISAGGREGATION ; MODEL ; SMOS ; INTEGRATION ; ALGORITHM ; FLUX |
| 资助项目 | National Natural Science Foundation of China[41671354] ; National Key Research and Development Plan[2016YFA0602501] |
| WOS研究方向 | Physical Geography ; Remote Sensing |
| 语种 | 英语 |
| WOS记录号 | WOS:000461865100007 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Plan |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/48617]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Tian, Jing |
| 作者单位 | 1.Chinese Acad Sci, IGSNRR, Key Lab Water Cycle & Related Land Surface Proc, A11 Datun Rd, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Chinese Agr Policy, Beijing, Peoples R China 3.Florida Atlantic Univ, Dept Civil Environm & Geomat Engn, Boca Raton, FL 33431 USA |
| 推荐引用方式 GB/T 7714 | Tian, Jing,Deng, Xiangzheng,Su, Hongbo. Intercomparison of two trapezoid-based soil moisture downscaling methods using three scaling factors[J]. INTERNATIONAL JOURNAL OF DIGITAL EARTH,2019,12(4):485-499. |
| APA | Tian, Jing,Deng, Xiangzheng,&Su, Hongbo.(2019).Intercomparison of two trapezoid-based soil moisture downscaling methods using three scaling factors.INTERNATIONAL JOURNAL OF DIGITAL EARTH,12(4),485-499. |
| MLA | Tian, Jing,et al."Intercomparison of two trapezoid-based soil moisture downscaling methods using three scaling factors".INTERNATIONAL JOURNAL OF DIGITAL EARTH 12.4(2019):485-499. |
入库方式： OAI收割
来源：地理科学与资源研究所
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