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以VIIRS-DNB数据为基础的黄海渔船夜间灯光动态
引用本文:陈冠宇,刘阳,田浩,叶振江,于海庆,李建超,田永军.以VIIRS-DNB数据为基础的黄海渔船夜间灯光动态[J].水产学报,2020,44(6):1036-1045.
作者姓名:陈冠宇  刘阳  田浩  叶振江  于海庆  李建超  田永军
作者单位:中国海洋大学水产学院,渔业海洋学实验室,山东青岛 266003;中国海洋大学水产学院,渔业海洋学实验室,山东青岛 266003;中国海洋大学水产学院,渔业海洋学实验室,山东青岛 266003;中国海洋大学水产学院,渔业海洋学实验室,山东青岛 266003;中国海洋大学水产学院,渔业海洋学实验室,山东青岛 266003;中国海洋大学水产学院,渔业海洋学实验室,山东青岛 266003;中国海洋大学水产学院,渔业海洋学实验室,山东青岛 266003
基金项目:国家重点研发计划(2018YFD0900902);山东省重点研发计划(2019GHY112014);中央高校基本科研经费(201762015)
摘    要:将VIIRS/DNB卫星遥感夜间灯光图像作为研究渔业船舶动态的数据来源,使用黄海海域2016年间共719幅夜间灯光影像,根据黄海海域特点确定阈值,提取夜间作业船舶的灯光点位信息,结合中韩渔业协定区及黄海海域渔场划分对提取的船舶灯光点进行分析。结果显示,黄海海域夜间渔业灯光分布季节性变化显著,四季的渔船数量呈现秋季春季夏季冬季的态势。识别的灯光点数量韩方一侧水域最多,中方一侧水域次之,中韩协定区水域最少,结合灯光点密度分布图可看出,韩方一侧水域秋季作业强度高、分布范围广,而其他季节作业强度适中,常年有高等级密集区分布在沿岸海域;中方一侧水域春、秋季节作业强度高,夏、冬季节作业强度低,整体分布范围广阔但密集程度较低。在禁渔期,中方一侧水域灯光点数下降比例高达86.9%,且密度图像中的高等级密集区分布情况与黄海传统渔场位置相吻合,因此推断,识别的灯光点多数为渔业活动船只,本研究可以为黄海海域渔业活动监测和研究提供数据支撑。

关 键 词:夜间灯光遥感  渔船动态  VIIRS/DNB  渔业资源  黄海
收稿时间:2019/4/24 0:00:00
修稿时间:2019/6/21 0:00:00

Dynamic analysis of night fishing vessels in the Yellow Sea based on VIIRS-DNB data
CHEN Guanyu,LIU Yang,TIAN Hao,YE Zhenjiang,YU Haiqing,LI Jianchao,TIAN Yongjun.Dynamic analysis of night fishing vessels in the Yellow Sea based on VIIRS-DNB data[J].Journal of Fisheries of China,2020,44(6):1036-1045.
Authors:CHEN Guanyu  LIU Yang  TIAN Hao  YE Zhenjiang  YU Haiqing  LI Jianchao  TIAN Yongjun
Institution:Fisheries and Oceanography Laboratory, College of Fisheries, Ocean University of China, Qingdao 266003, China
Abstract:VIIRS/DNB satellite nighttime light image was used as the data source for studying the dynamics of fishery vessels. A total of 719 nighttime light images were recorded in the Yellow Sea in 2016. We designed a new method to extract the light point information of the nighttime operation vessels in the Yellow Sea. Analysis of the lighting points in combination with the China-Korea Fishery Agreement Area and the Yellow Sea area fishery division. The results show that the seasonal distribution change of fishery lights is significant, and the number of fishing boats in the four seasons shows the trend of autumn> spring> summer> winter. The number of light points is the largest in South Korea''s waters, followed by China''s side waters, and that in the waters in China and South Korea agreement zone is the smallest. Combined with the light point density map, the Korean side waters have higher intensity and wider distribution range in autumn, while other seasons have moderate intensity, and high-grade agglomeration areas are distributed in coastal waters all year round; the Chinese side waters have lower intensity in summer and winter, higher intensity in spring and autumn, and the overall intensity of the year is low but the distribution is broad. The number of light points in both sides has obvious seasonal patterns, and the proportion of light points decreased by 86.9% during the closed fishing season. Therefore, it is inferred that most of the light points identified in this study are fishery vessels, which can be used to provide reference for night fishing activities.
Keywords:nighttime light remote sensing  fishing vessel dynamics  VIIRS/DNB  fishery resources  Yellow Sea
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