激光与光电子学进展, 2019, 56 (5): 051201, 网络出版: 2019-07-31
基于海洋激光雷达的近海表层叶绿素a浓度测量初步测试 下载: 1144次
Preliminary Testing of Chlorophyll-a Concentration on Offshore Surface Based on Oceanographic Lidar
测量 海洋船载激光雷达 叶绿素a浓度 室内定标 走航实验 measurement oceanographic shipborne lidar system chlorophyll-a concentration indoor calibration navigation testing
摘要
基于532 nm脉冲激光器,搭建了船载三通道海洋激光雷达系统。利用该系统对叶绿素a浓度进行了测量,将所得到的测量结果与商业化叶绿素荧光计的测量结果进行了对比,结果显示,二者的相关系数高达0.84,即表现出良好的线性相关性。为了测试和评估该系统对表层海水叶绿素a浓度的探测性能,开展了初步现场走航实验,并获取了走航路径上表层海水的叶绿素a浓度的分布状况。结果表明,基于激光雷达探测数据反演的表层海水的叶绿素a浓度与商业化叶绿素荧光计同步探测得到的表层海水的叶绿素a浓度的相关系数可达0.69。
Abstract
A three-channel oceanographic shipborne lidar system is built based on a 532 nm pulse laser. The concentration of chlorophyll-a is measured with this system and the results are compared with that obtained by the commercial chlorophyll fluorometer. The comparison results show that, the correlation coefficient between these results as high as 0.84, which shows a good linear correlation. In order to test and assess the detection performance of this system on the chlorophyll-a concentration of the surface seawater, the preliminary field navigation testing is carried out and the distribution of the chlorophyll-a concentration of the surface seawater along the navigation path is obtained. The results show that, the correlation coefficient between the chlorophyll-a concentration of the surface seawater extracted from the lidar detecting data and the chlorophyll-a concentration of the surface seawater obtained synchronously by the commercial chlorophyll fluorometer can reach to 0.69.
张锋, 郭金家, 李志刚, 栾晓宁. 基于海洋激光雷达的近海表层叶绿素a浓度测量初步测试[J]. 激光与光电子学进展, 2019, 56(5): 051201. Feng Zhang, Jinjia Guo, Zhigang Li, Xiaoning Luan. Preliminary Testing of Chlorophyll-a Concentration on Offshore Surface Based on Oceanographic Lidar[J]. Laser & Optoelectronics Progress, 2019, 56(5): 051201.