Brightness Temperature Model of Sea Foam Layer at L-band
文献类型：CNKI期刊论文
| 作者 | LIU Shubo ; JIA Yanxia; QI Zhen; WEI Enbo
|
| 发表日期 | 2015-02-06 |
| 出处 | Journal of Ocean University of China
 |
| 关键词 | sea foam permittivity Rayleigh method Pade' approximation |
| 英文摘要 | Permittivity of a sea foam layer is very important in investigating ocean brightness temperature model. At microwave frequency, the Rayleigh method is developed to estimate the effective permittivity of the sea foam layer. To simplify the tedious calculation of sea foam effective permittivity at L band(1.4 GHz), Pade' approximation is adopted to fit the sea foam effective permittivity computed by the Rayleigh method. With this fitting formula, a new brightness temperature model of sea foam layer defined by certain geophysical parameters, such as air volume fraction(AVF), sea surface temperature(SST), sea surface salinity(SSS) and thickness of foam layer d, is given. Furthermore, the sensitivities of the brightness temperature model to SST, SSS, d and AVF of a sea foam layer at L band are discussed. The sensitivities are ranked from most to least in the order:(1) d;(2) AVF;(3) SSS;(4) SST. This result indicates that the measurement errors of d and AVF have significant impacts on the retrievals of SSS and SST. With the experimental brightness temperature data, the SSS and AFV are retrieved by cost function. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National Natural Science Foundation of China (Grant No. 41276183) ; the National 863 Project of China (Grant No. 2009AA09Z102) |
| 卷 | v.14期:01页:42-50 |
| 语种 | 英文; |
| 分类号 | P731;P714 |
| ISSN号 | 1672-5182 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190140]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.UniversityofChineseAcademyofSciences 2.CangzhouCityMarineEnvironmentMonitoringStation 3.InstituteofOceanology,ChineseAcademyofSciences 4.HisenseTrans-TechCompanyLimited |
| 推荐引用方式 GB/T 7714 | LIU Shubo,JIA Yanxia,QI Zhen,et al. Brightness Temperature Model of Sea Foam Layer at L-band. 2015. |
入库方式： OAI收割
来源：海洋研究所
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