风场数据在西北太平洋秋刀鱼栖息地预报中的应用适宜性分析  

Suitability analysis of wind data for habitat forecasting of the Pacific saury fishing ground in northwestern Pacific Ocean

作　　者：刘瑜 徐莹[3,4] 郑全安[5] Liu Yu;Xu Ying;Zheng Quan’an(College of Geomatics and Geoinformation,Guilin University of Technology,Guilin 541004,China;College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;National Satellite Ocean Application Service,Beijing 100081,China;Key Laboratory of Space Ocean Remote Sensing and Application,Ministry of Natural Resources,Beijing 100081,China;College of Ocean and Meteorology,Guangdong Ocean University,Zhanjiang 524088,China)

机构地区：[1]桂林理工大学测绘地理信息学院,广西桂林541004 [2]上海海洋大学海洋科学学院,上海201306 [3]国家卫星海洋应用中心,北京100081 [4]自然资源部空间海洋遥感与应用重点实验室,北京100081 [5]广东海洋大学海洋与气象学院,广东湛江524088

出　　处：《海洋学报》2024年第11期34-42,共9页

基　　金：国家重点研发计划(2023YFD2401302);国家自然科学基金(42176184);桂林理工大学博士后启动基金(RD2400002498)。

摘　　要：为探讨风场数据在西北太平洋秋刀鱼栖息地预报中的应用适宜性,本文基于中国2019-2020年的6-11月在西北太平洋公海的秋刀鱼生产数据、中法海洋卫星(CFOSAT)等4种风场数据及海洋环境数据,利用广义可加模型构建夏、秋季秋刀鱼栖息地适宜性指数(Habitat Suitability Index, HSI)模型。结果显示:(1)环境变量对单位捕捞渔获量的影响权重表现出明显季节特征,夏、秋季影响最高权重值分别为叶绿素浓度和海表面温度,风速的权重值在夏季和秋季分别为最低和第二位,风速大小与权重值高低成正比;(2)4组卫星数据夏、秋季的检验精度平均值分别为68.37%和76.65%,最高为秋季CFOSAT达80.94%;(3)HSI高值区域与秋刀鱼实际渔场的空间分布移动方向基本一致,散射计卫星HSI高值区在台风多发的秋季表现更为突出。应用风速的预报模型在秋季速报中具有优势,该模型能够反映瞬时环境变量的变化对秋刀鱼鱼群洄游和集聚的影响。To analysis the suitability of using wind field data for forecasting Pacific saury habitat in the northwest Pacific,this paper use the generalized additive model to fit the habitat suitability index(HSI)for Pacific saury in summer and autumn,based on the Chinese fishery data,environmental data and four types of wind field data included the China-France oceanography satellite(CFOSAT)during June to November in 2019−2020.The result indicates that:(1)Weighted analysis shows distinct seasonal variation of environmental variables on catch per unit effort,with chlorophyll concentration and sea surface temperature having the highest weights in summer and autumn respectively,while wind speed had the lowest weight and direct proportionality to the weight.(2)The average accuracy of the four data in summer and autumn is 68.37%and 76.65%respectively,and CFOSAT reaching the highest accuracy of 80.94%in autumn.(3)The high-HSI areas are consistent with the fishing grounds of Pacific saury,while the HSI high-value regions of scatter meter in autumn seems more robust.There are advantages of using wind speed on the forecast model in autumn,as this model can reflect the influence of transient variation factors on the migration and aggregation of Pacific saury.

关 键 词：秋刀鱼渔场 GAM 栖息地预报 CFOSAT 西北太平洋 

分 类 号：S931.4[农业科学—渔业资源]