Knowledge Management System Of Institute of Oceanology, Chinese Academy of Sciences
| An inverse method for estimating air volume fraction of sea foam from emissivity data | |
Wei, En-Bo1,2; Gao, Hong-Xiu1,2,3; Liu, Shu-Bo4 ; Li, Guang-Yan5; Gao, Le1,2
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| 2018 | |
| 发表期刊 | INTERNATIONAL JOURNAL OF REMOTE SENSING
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| ISSN | 0143-1161 |
| 卷号 | 39期号:21页码:7293-7310 |
| 通讯作者 | Wei, En-Bo(ebwei@qdio.ac.cn) ; Li, Guang-Yan(ligy100@nenu.edu.cn) ; Gao, Le(gaole@qdio.ac.cn) |
| 摘要 | The air volume fraction (AVF) of a sea foam layer is a key parameter that affects the microwave emissivity and brightness temperature of the sea surface. To extract AVF of a sea foam layer from the measured emissivity data at microwave frequencies, a novel retrieval method is developed based on the spectral representation of effective dielectric constant of sea foam composites media, with the volume fraction of constituents and the geometry of foam microstructure included in the spectral function. In the retrieval method, the cost function of emissivity is constructed with two constraints: one is the first two moments of the spectral function and the other is derived from the spectral representation of coated spherical composites. We tested the inverse method using the simulation data of a known emissivity model with Gaussian noise. Good agreement is obtained between the inverse results and the known AVF of sea foam from the simulated emissivity data with varying sea surface temperature, salinity, and incident angle. Finally, the proposed method was used to estimate the AVF of the sea foam layer from the measured emissivity data at frequencies 1.4, 6.8, 10.8, 35, and 36.5 GHz. Generally, the retrieved values of the AVF fall in the range of 0.85-0.98. This study implies that our method can be extended to retrieve the volume fraction of constituents of other composites media from the passive microwave remote-sensing data. |
| DOI | 10.1080/01431161.2018.1468113 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Key R&D Program of China[2016YFC1401006] ; National Natural Science Foundation of China [NSFC][41676169] ; National Key R&D Program of China[2016YFC1401006] ; National Natural Science Foundation of China [NSFC][41676169] |
| WOS研究方向 | Remote Sensing ; Imaging Science & Photographic Technology |
| WOS类目 | Remote Sensing ; Imaging Science & Photographic Technology |
| WOS记录号 | WOS:000456446600010 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/160716 |
| 专题 | 中国科学院海洋研究所 |
| 通讯作者 | Wei, En-Bo; Li, Guang-Yan; Gao, Le |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Qingdao Natl Lab Marine Sci & Technol, Qingdao 266071, Peoples R China 3.Univ Chinese Acad Sci, Beijing, Peoples R China 4.China Acad Space Technol, Xian, Shaanxi, Peoples R China 5.Northeast Normal Univ, Sch Phys, Changchun 130024, Jilin, Peoples R China |
| 第一作者单位 | 中国科学院海洋研究所 |
| 通讯作者单位 | 中国科学院海洋研究所 |
| 推荐引用方式 GB/T 7714 | Wei, En-Bo,Gao, Hong-Xiu,Liu, Shu-Bo,et al. An inverse method for estimating air volume fraction of sea foam from emissivity data[J]. INTERNATIONAL JOURNAL OF REMOTE SENSING,2018,39(21):7293-7310. |
| APA | Wei, En-Bo,Gao, Hong-Xiu,Liu, Shu-Bo,Li, Guang-Yan,&Gao, Le.(2018).An inverse method for estimating air volume fraction of sea foam from emissivity data.INTERNATIONAL JOURNAL OF REMOTE SENSING,39(21),7293-7310. |
| MLA | Wei, En-Bo,et al."An inverse method for estimating air volume fraction of sea foam from emissivity data".INTERNATIONAL JOURNAL OF REMOTE SENSING 39.21(2018):7293-7310. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| An inverse method fo（2265KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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