Influences of the Great Whirl on surface chlorophyll a concentration off the Somali Coast in 2017

作     者：Lingxing Dai Bing Han Shilin Tang Chuqun Chen Yan Du Lingxing Dai;Bing Han;Shilin Tang;Chuqun Chen;Yan Du

作者机构：State Key Laboratory of Tropical OceanographySouth China Sea Institute of Oceanologyand China-Pakistan Joint Research Center on Earth SciencesChinese Academy of SciencesGuangzhou 510301China University of Chinese Academy of SciencesBeijing 100049China Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)Guangzhou 511458China 

出 版 物：《Acta Oceanologica Sinica》 (海洋学报（英文版）)

年 卷 期：2021年第40卷第11期

页      面：79-86页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 08[工学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学] 

基　　金：The National Natural Science Foundation of China under contract Nos 41830538 and 42090042 the Chinese Academy of Sciences Fund under contract Nos XDA15020901,133244KYSB20190031,ZDRW-XH-2019-2,ISEE2021PY02 and ISEE2021ZD01 Guangdong Basic and Applied Basic Research Fund under contract No.2020A1515010498 the Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)Fund under contract Nos GML2019ZD0303 and 2019BT02H594 

主　　题：Great Whirl chlorophyll a mixed-layer eddy-induced Ekman pumping summer monsoon 

摘      要：The general features of the Great Whirl(GW)off the Somali Coast in 2017 and its influences on chlorophyll a(Chl a)concentration were studied by using satellite data and model *** show that GW,which initiated at7°N,53°E on June 13,had a lifetime of 153 d with an average amplitude of 16 cm and an average radius of 205 *** the formation of GW,the concentration of Chl a in the interior of GW showed a downward trend throughout its life cycle,except in early July and *** early July,the Chl a blooms in the interior of GW were attributed to the combined effect of three *** are eddy horizontal transportation,the deepening of the mixed layer caused by the monsoon and eddy pumping,and the upward transportation of nutrients caused by eddy-induced Ekman *** October,the Chl a blooms were probably due to the weakening of *** the period,water exchange occurred more frequently across the eddy,thus phytoplanktons were imported into the interior of GW.