Variation in downwelling diffuse attenuation coefficient in the northern South China Sea
文献类型：期刊论文
| 作者 | Wang, GF ; Cao, WX ; Yang, DT ; Xu, DZ |
| 刊名 | CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
 |
| 出版日期 | 2008 |
| 卷号 | 26期号:3页码:323-333 |
| 关键词 | the downwelling diffuse attenuation coefficient chlorophyll a bio-optical model the northern South China Sea |
| ISSN号 | 0254-4059 |
| 通讯作者 | wxcao@scsio.ac.cn |
| 中文摘要 | The diffuse attenuation coefficient for downwelling irradiance (K-d(lambda)) is an important parameter for ocean studies. Based on the optical profile data measured during three cruises in the northern South China Sea in autumn from 2003 to 2005, variations in the K-d(lambda) spectra were analyzed. The variability of K-d(lambda) shows much distinct features in both magnitude and spectra pattern, it is much higher in coastal waters than that of open oceanic waters; and the blue-to-green (443/555) ratio of K-d(lambda) tends to increase with chlorophyll a concentration ([Chl-a]) from open ocean to coastal waters. These characteristics can be explained most by the increase of a (w+p)(443)/a (w+p)(555) with [Chl-a]. In short waveband, the relation between K-d(lambda)-K-w(lambda) and [Chl-a] can be well described by a power law function, indicating the large contribution of phytoplankton to the variations in K-d(lambda). As for the spectral model of the diffuse attenuation coefficient, there are good linear relationships between Kd(490) and K-d(lambda) in other wavelengths with own slope and intercept of a linear functions in the spectral range 412-555 nm. K-d(490) is well correlated with the spectral ratio of remote sensing reflectance; and should enough measurement data are given, this empirical algorithm would be used in the K-d(lambda) retrieval from ocean color satellite data. The variation in K-d(lambda) provides much useful information for us to study the bio-optical property in the northern South China Sea. |
| 学科主题 | Limnology; Oceanography |
| 收录类别 | SCI |
| 原文出处 | AUG |
| WOS记录号 | WOS:000258601000015 |
| 公开日期 | 2011-07-03 |
| 源URL | [http://ir.scsio.ac.cn/handle/344004/5977]  |
| 专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
| 推荐引用方式 GB/T 7714 | Wang, GF,Cao, WX,Yang, DT,et al. Variation in downwelling diffuse attenuation coefficient in the northern South China Sea[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2008,26(3):323-333. |
| APA | Wang, GF,Cao, WX,Yang, DT,&Xu, DZ.(2008).Variation in downwelling diffuse attenuation coefficient in the northern South China Sea.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,26(3),323-333. |
| MLA | Wang, GF,et al."Variation in downwelling diffuse attenuation coefficient in the northern South China Sea".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 26.3(2008):323-333. |
入库方式： OAI收割
来源：南海海洋研究所
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