| Using second-derivative spectrum to estimate Chlorophyll-a concentration in turbid estuarine waters | |
| Shia HY (Shia, Heyin) ; Xing QG (Xing, Qianguo) ; Chen CQ (Chen, Chuqun) ; Shi P (Shi, Ping) ; Tang SL (Tang, Shilin) | |
| 通讯作者 | Shia, HY, Chinese Acad Sci, LED, S China Sea Inst Oceanol, Guangzhou 510301, Peoples R China |
| 会议主办者 | PROCEEDINGS OF THE SOCIETY OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS |
| 2007 | |
| 会议名称 | Symposium on Remote Sensing and GIS Data Processing and Applications; and Innovative Multispectral Technology and Applications Wuhan, PEOPLES R CHINA, NOV 15-17, 2007 |
| 页码 | 79032-79032 |
| 会议日期 | 39401 |
| 会议地点 | hyperspectral; derivative spectra; chlorophyll-a; turbid estuarine waters |
| ISSN号 | 0277-786X |
| ISBN号 | 978-0-8194-6954-0 |
| 产权排序 | LED, South China Sea Institute of Oceanology, Chinese Academy of Sciences;Yantai Institute of Coastal Zone Research for Sustainable Development, Chinese Academy of Sciences;Guangdong Public Laboratory of Environmental Science and Technology |
| 关键词 | Hyperspectral |
| 摘要 | Hyperspectral technique is considered as one promising tool to solve the problems in monitoring optically-complex waters, which can be applied in optical sensors on board bouy, plane and satellite. In order to apply the technique in the in-situ chlorophyll monitoring of estuarine turbid waters, two cruises were carried out in May, 2004 and August, 2006, respectively, in Pearl River Estuary, China. In the cruises, water samples were collected at each sample station, a portable field spectroradiometer was used simultaneously to measure the downwelling sky radiance, and upwelling radiance of water and reference plaque, and the reflectance was calculated out. Further, the original reflectance spectra with 0.38 nm spectral resolution were resampled to 10 run resolution, and then derivative spectra were processed. The results of correlation analysis between the chlorophyll-a concentrations and derivative spectra indicate that the second derivative spectra especially at 670 nm can be used to estimate chlorophyll-a concentration of turbid estuarine waters, which suggests a new way for the in-situ chlorophyll measurement in the optically-complex waters. |
| 作者部门 | 信息集成与应用实验室 |
| 收录类别 | 其他 |
| 语种 | 英语 |
| 文献类型 | 会议论文 |
| 条目标识符 | http://ir.yic.ac.cn/handle/133337/3147 |
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带信息集成与战略规划研究中心 |
| 推荐引用方式 GB/T 7714 | Shia HY ,Xing QG ,Chen CQ ,et al. Using second-derivative spectrum to estimate Chlorophyll-a concentration in turbid estuarine waters[C]. BELLINGHAM:SPIE-INT SOC OPTICAL ENGINEERING,2007:79032-79032 . |
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