An Algorithm for Retrieving Soil Moisture Using L-Band H-Polarized Multiangular Brightness Temperature Data
文献类型：期刊论文
| 作者 | Cui, Qian; Dong, Xiaolong; Shi, Jiancheng; Zhao, Tianjie; Xiong, Chuan |
| 刊名 | IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
 |
| 出版日期 | 2016 |
| 卷号 | 13期号:9页码:1295-1299 |
| 关键词 | L-band multiangular passive microwave soil moisture surface reflectivity model |
| ISSN号 | 1545-598X |
| 通讯作者 | Cui, Q (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Microwave Remote Sensing, Beijing 100190, Peoples R China. |
| 英文摘要 | This letter presents an algorithm for retrieving soil moisture using only H-polarized multiangular brightness temperature at L-band. We developed a parameterized surface model based on a simple-empirical model, the H-p model, for this retrieval algorithm. By analyzing a simulated database using the advanced integral equation model (AIEM), it was found that the roughness variable H-h can be parameterized as a function of an effective roughness parameter Sr = (k(L) . s)(2-N)(s/l)(N). Influences of three surface roughness parameters (e.g., rms height, correlation length, and type of autocorrelation function) required to describe a rough surface on surface reflectivity were all considered in this parameterized model. Comparison with AIEM simulations over a wide range of soil conditions indicates a good performance of this model. Then, based on the omega - t model, this algorithm is applied on refined SMOS H-polarized multiangular brightness temperature. Retrieved soil moisture in Africa exhibits reasonable patterns and temporal changes. Validation using in situ soil moisture from Little Washita watershed and Yanco over 2010-2011 showed fine accuracy with root-mean-square errors of 0.031 and 0.045 m(3)/m(3) for two areas, respectively. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.nssc.ac.cn/handle/122/5606]  |
| 专题 | 国家空间科学中心_微波遥感部 |
| 推荐引用方式 GB/T 7714 | Cui, Qian,Dong, Xiaolong,Shi, Jiancheng,et al. An Algorithm for Retrieving Soil Moisture Using L-Band H-Polarized Multiangular Brightness Temperature Data[J]. IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,2016,13(9):1295-1299. |
| APA | Cui, Qian,Dong, Xiaolong,Shi, Jiancheng,Zhao, Tianjie,&Xiong, Chuan.(2016).An Algorithm for Retrieving Soil Moisture Using L-Band H-Polarized Multiangular Brightness Temperature Data.IEEE GEOSCIENCE AND REMOTE SENSING LETTERS,13(9),1295-1299. |
| MLA | Cui, Qian,et al."An Algorithm for Retrieving Soil Moisture Using L-Band H-Polarized Multiangular Brightness Temperature Data".IEEE GEOSCIENCE AND REMOTE SENSING LETTERS 13.9(2016):1295-1299. |
入库方式： OAI收割
来源：国家空间科学中心
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