Refinement of SMOS multiangular brightness temperature toward soil moisture retrieval and its analysis over reference targets (EI)
文献类型：期刊论文
| 作者 | Zhao T.; Shi J.; Bindlish R.; Jackson T. J.; Kerr Y. H.; Cosh M. H.; Cui Q.; Li Y.; Xiong C.; Che T. |
| 刊名 | IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
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| 出版日期 | 2015 |
| 卷号 | 8期号:2页码:589-603 |
| 英文摘要 | Soil moisture ocean salinity (SMOS) mission has been providing L-band multiangular brightness temperature observations at a global scale since its launch in November 2009 and has performed well in the retrieval of soil moisture. The multiple incidence angle observations also allow for the retrieval of additional parameters beyond soil moisture, but these are not obtained at fixed values and the resolution and accuracy change with the grid locations over SMOS snapshot images. Radio-frequency interference (RFI) issues and aliasing at lower look angles increase the uncertainty of observations and thereby affect the soil moisture retrieval that utilizes observations at specific angles. In this study, we proposed a two-step regression approach that uses a mixed objective function based on SMOS L1c data products to refine characteristics of multiangular observations. The approach was found to be robust by validation using simulations from a radiative transfer model, and valuable in improving soil moisture estimates from SMOS. In addition, refined brightness temperatures were analyzed over three external targets: Antarctic ice sheet, Amazon rainforest, and Sahara desert, by comparing with WindSat observations. These results provide insights for selecting and utilizing external targets as part of the upcoming soil moisture active passive (SMAP) mission. 2014 IEEE. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.casnw.net/handle/362004/27153]  |
| 专题 | 寒区旱区环境与工程研究所_中科院寒区旱区环境与工程研究所（未分类）_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhao T.,Shi J.,Bindlish R.,et al. Refinement of SMOS multiangular brightness temperature toward soil moisture retrieval and its analysis over reference targets (EI)[J]. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing,2015,8(2):589-603. |
| APA | Zhao T..,Shi J..,Bindlish R..,Jackson T. J..,Kerr Y. H..,...&Che T..(2015).Refinement of SMOS multiangular brightness temperature toward soil moisture retrieval and its analysis over reference targets (EI).IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing,8(2),589-603. |
| MLA | Zhao T.,et al."Refinement of SMOS multiangular brightness temperature toward soil moisture retrieval and its analysis over reference targets (EI)".IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 8.2(2015):589-603. |
入库方式： OAI收割
来源：寒区旱区环境与工程研究所
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