Field Experiments of Multi-Channel Oceanographic Fluorescence Lidar for Oil Spill and Chlorophyll-a Detection
文献类型：CNKI期刊论文
| 作者 | LI Xiaolong ; ZHAO Chaofang; MA Youjun; LIU Zhishen
|
| 发表日期 | 2014-08-06 |
| 出处 | Journal of Ocean University of China
 |
| 关键词 | oceanographic lidar oil spill marine environment fluorescence spectrum Raman scattering |
| 英文摘要 | A Multi-channel Oceanographic Fluorescence Lidar(MOFL), with a UV excitation at 355 nm and multiple receiving channels at typical wavelengths of fluorescence from oil spills and chlorophyll-a(Chl-a), has been developed using the Laser- induced Fluorescence(LIF) technique. The sketch of the MOFL system equipped with a compact multi-channel photomultiplier tube(MPMT) is introduced in the paper. The methods of differentiating the oil fluorescence from the background water fluorescence and evaluating the Chl-a concentration are described. Two field experiments were carried out to investigate the field performance of the system, i.e., an experiment in coastal areas for oil pollution detection and an experiment over the Yellow Sea for Chl-a monitoring. In the coastal experiment, several oil samples and other fluorescence substances were used to analyze the fluorescence spectral characteristics for oil identification, and to estimate the thickness of oil films at the water surface. The experiment shows that both the spectral shape of fluorescence induced from surface water and the intensity ratio of two channels(I495/I405) are essential to determine oil-spill occurrence. In the airborne experiment, MOFL was applied to measure relative Chl-a concentrations in the upper layer of the ocean. A comparison of relative Chl-a concentration measurements by MOFL and the Moderate Resolution Imaging Spectroradiometer(MODIS) indicates that the two datasets are in good agreement. The results show that the MOFL system is capable of monitoring oil spills and Chl-a in the upper layer of ocean water. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | supported by the National High Technology Research and Development Program (2006AA06Z415) ; the Global Change Research Program of China (2012CB955603) |
| 卷 | v.13期:04页:63-69 |
| 语种 | 英文; |
| 分类号 | X834 |
| ISSN号 | 1672-5182 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/190367]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.InstituteofOceanology,ChineseAcademyofSciences 2.OceanRemoteSensingInstitute,OceanUniversityofChina |
| 推荐引用方式 GB/T 7714 | LI Xiaolong,ZHAO Chaofang,MA Youjun,et al. Field Experiments of Multi-Channel Oceanographic Fluorescence Lidar for Oil Spill and Chlorophyll-a Detection. 2014. |
入库方式： OAI收割
来源：海洋研究所
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