Variation in downwelling diffuse attenuation coefficient in the northern South China Sea
Wang, GF; Cao, WX; Yang, DT; Xu, DZ; wxcao@scsio.ac.cn
2008
发表期刊CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN0254-4059
卷号26期号:3页码:323-333
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.
部门归属[Wang Guifen; Cao Wenxi; Yang Dingtian; Xu Dazhi] Chinese Acad Sci, S China Sea Inst Oceanol, LED Lab, Guangzhou 510301, Guangdong, Peoples R China; [Wang Guifen] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
关键词The Downwelling Diffuse Attenuation Coefficient Chlorophyll a Bio-optical Model The norThern South China Sea
学科领域Limnology ; Oceanography
URL查看原文
收录类别sci
资助项目LED
WOS记录号WOS:000258601000015
引用统计
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/5977
专题热带海洋环境国家重点实验室(LTO)
通讯作者wxcao@scsio.ac.cn
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,&wxcao@scsio.ac.cn.(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.
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
Variation in downwel(707KB) 开放获取--请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。