A practical approach for deriving all-weather soil moisture content using combined satellite and meteorological data
文献类型：期刊论文
| 作者 | Leng, Pei2; Li, Zhao-Liang1,2; Duan, Si-Bo2; Gao, Mao-Fang2; Huo, Hong-Yuan2 |
| 刊名 | ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING
 |
| 出版日期 | 2017-09-01 |
| 卷号 | 131页码:40-51 |
| 关键词 | Soil moisture All-weather VIT trapezoid MODIS CLDAS meteorological products |
| ISSN号 | 0924-2716 |
| DOI | 10.1016/j.isprsjprs.2017.07.013 |
| 通讯作者 | Li, Zhao-Liang(lizl@unistra.fr) |
| 英文摘要 | Soil moisture has long been recognized as one of the essential variables in the water cycle and energy budget between Earth's surface and atmosphere. The present study develops a practical approach for deriving all-weather soil moisture using combined satellite images and gridded meteorological products. In this approach, soil moisture over the Moderate Resolution Imaging Spectroradiometer (MODIS) clear sky pixels are estimated from the Vegetation Index/Temperature (VIT) trapezoid scheme in which theoretical dry and wet edges were determined pixel to pixel by China Meteorological Administration Land Data Assimilation System (CLDAS) meteorological products, including air temperature, solar radiation, wind speed and specific humidity. For cloudy pixels, soil moisture values are derived by the calculation of surface and aerodynamic resistances from wind speed. The approach is capable of filling the soil moisture gaps over remaining cloudy pixels by traditional optical/thermal infrared methods, allowing for a spatially complete soil moisture map over large areas. Evaluation over agricultural fields indicates that the proposed approach can produce an overall generally reasonable distribution of all-weather soil moisture. An acceptable accuracy between the estimated all-weather soil moisture and in-situ measurements at different depths could be found with an Root Mean Square Error (RMSE) varying from 0.067 m(3)/m(3) to 0.079 m(3)/m(3) and a slight bias ranging from 0.004 m(3)/m(3) to 0.011 m(3)/m(3). The proposed approach reveals significant potential to derive all-weather soil moisture using currently available satellite images and meteorological products at a regional or global scale in future developments. (C) 2017 International Society for Photogrammetry and Remote Sensing, Inc. (ISPRS). Published by Elsevier B.V. All rights reserved. |
| WOS关键词 | THERMAL INFRARED DATA ; SURFACE-TEMPERATURE ; AIR-TEMPERATURE ; HIGH-RESOLUTION ; TRIANGLE METHOD ; ENERGY FLUXES ; TIME-SERIES ; L-BAND ; EVAPOTRANSPIRATION ; RETRIEVAL |
| 资助项目 | National Nature Science Foundation of China[40601397] ; National Nature Science Foundation of China[41571367] ; China Postdoctoral Science Foundation[2015M581210] |
| WOS研究方向 | Physical Geography ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology |
| 语种 | 英语 |
| WOS记录号 | WOS:000411775100004 |
| 出版者 | ELSEVIER SCIENCE BV |
| 资助机构 | National Nature Science Foundation of China ; China Postdoctoral Science Foundation |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/62031]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Li, Zhao-Liang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China 2.Chinese Acad Agr Sci, Minist Agr, Key Lab Agr Remote Sensing, Inst Agr Resources & Reg Planning, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Leng, Pei,Li, Zhao-Liang,Duan, Si-Bo,et al. A practical approach for deriving all-weather soil moisture content using combined satellite and meteorological data[J]. ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING,2017,131:40-51. |
| APA | Leng, Pei,Li, Zhao-Liang,Duan, Si-Bo,Gao, Mao-Fang,&Huo, Hong-Yuan.(2017).A practical approach for deriving all-weather soil moisture content using combined satellite and meteorological data.ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING,131,40-51. |
| MLA | Leng, Pei,et al."A practical approach for deriving all-weather soil moisture content using combined satellite and meteorological data".ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING 131(2017):40-51. |
入库方式： OAI收割
来源：地理科学与资源研究所
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