| 基于遥感的吕宋岛西北部海域灯光渔船空间分布及其与海洋涡的关系 |
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| 引用本文： | 黄微,李永振,于杰,陈国宝.基于遥感的吕宋岛西北部海域灯光渔船空间分布及其与海洋涡的关系[J].海洋学报,2018,40(8):10-19. |
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| 作者姓名： | 黄微 李永振 于杰 陈国宝 |
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| 作者单位： | 1.中国水产科学研究院南海水产研究所 农业部南海渔业资源环境科学观测实验站 广东省渔业生态环境重点实验室, 广东 广州 510300;大连海洋大学 海洋科技与环境学院, 辽宁 大连 116023 |
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| 基金项目： | 公益性行业（农业）科研专项经费资助（201403008）；国家重点基础研究计划（973计划）项目（2014CB441500）；南海海洋捕捞生产结构调查（2009-2018）；中国水产科学研究院基本科研业务费资助（2018HY-ZD02）；中央级公益性科研院所基本科研业务费专项资金项目（2015TS22）；深圳市科技计划项目（JSGG20141015154342147）。 |
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| 摘 要： | 利用2014年夜光遥感数据分析吕宋岛西北部海域（18°~22°N，117°~120°E）灯光渔船的聚集性分布特征，并结合遥感环境数据研究引起该海域渔船聚集的海洋环境机制。研究结果表明:（1）2014年研究区的渔船灯光主要出现在2-4月，其中，3月灯光像元数量最多（3 417个），其次是4月（1 780个）和2月（573个）；（2）日灯光像元数量时间序列结果显示，渔船灯光集中出现在2月23日至3月8日（T1），3月25日至4月7日（T2），4月23日至4月27日（T3）3个时段，其中，T1期间，灯光像元在18.6°~20.1°N，117.9°~118.6°E（A区）聚集；T2期间，灯光像元在18.6°~20.1°N，117.9°~118.6°E（B区）聚集；（3）A区和B区两个灯光密集区叶绿素a浓度升高可能与起源于吕宋岛西北部的冷涡相关。
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| 关 键 词： | 夜间灯光遥感 灯光渔业 海洋涡 吕宋岛西北部海域 |
| 收稿时间： | 2017/11/7 0:00:00 |
| 修稿时间： | 2018/3/27 0:00:00 |
Spatial distribution of light falling-net fishery vessels and its relationship with the ocean vortex in the northwestern Luzon Island base on remote sensing |
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| Huang Wei,Li Yongzhen,Yu Jie and Chen Guobao.Spatial distribution of light falling-net fishery vessels and its relationship with the ocean vortex in the northwestern Luzon Island base on remote sensing[J].Acta Oceanologica Sinica (in Chinese),2018,40(8):10-19. |
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| Authors: | Huang Wei Li Yongzhen Yu Jie and Chen Guobao |
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| Institution: | Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments/Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China;College of Marine Science and Environment, Dalian Ocean University, Dalian 116023, China,Regional Bureau of South China Sea Fishery Management, Ministry of Agriculture, Guangzhou 510080, China,Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments/Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China and Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Scientific Observing and Experimental Station of South China Sea Fishery Resources & Environments/Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China |
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| Abstract: | In this paper, the clustering distribution characteristics of light falling-net fishery vessels in the northwestern part of Luzon Island (18°-22°N, 117°-120°E) were analyzed by using the Luminous remote sensing data of 2014. Moreover, the environmental mechanism was studied, combining with the remote sensing environmental data. The results showed that:(1) During 2014, the fishing lights of the study area mainly appeared in the period from February to April, specifically, the highest number of lights was in March (3 417), followed by April (1 780) and February (573); (2) The time series results of daylight number of pixels showed that the fishing light appeared from February 23 to March 8 (T1), March 25 to April 7 (T2) and April 23 to April 27 (T3). During the period of T1, the light pixel gathered at 18.6°-20.1°N, 117.9°-118.6°E (area A); as for the T2, the light pixels gathered at 18.6°-20.1°N, 117.9°-118.6°E (area B); (3) The increased of chlorophyll a concentration in the two light-intensive areas in area A and area B may be related to the cold vortex originating in northwestern Luzon Island. |
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| Keywords: | luminous remote sensing light falling-net fishery ocean vortex northwestern Luzon Island |
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