Analysis of Seasonal Differences of Chlorophyll,Dimethylsulfide,and Ice Between the Greenland Sea and the Barents Sea  

作　　者：ZHONG Guangsheng QU Bo 

机构地区：[1]School of Science,Nantong University,226019,China

出　　处：《Journal of Ocean University of China》2023年第6期1592-1604,共13页中国海洋大学学报（英文版）

基　　金：the National Natural Science Foundation of China(No.41276097)for providing research funding for this project.

摘　　要：Arctic Ocean(AO)climate is closely related to sea ice concentration(ICE)and chlorophyll_a(CHL)concentrations.From 2003–2014,the spatial average concentrations of CHL,ICE,sea surface temperature(SST),wind speed(WIND)in the Greenland Sea region(GS)(20˚W–10˚E,70˚–80˚N)and the Barents Sea region(BS)(30˚–50˚E,70˚–80˚N)are analysed and com-pared.Higher CHL was observed in BS,about 60%higher than that in GS.Compared with the northern regions of BS and GS(BSN and GSN),CHL in the southern region of BS and GS(BSS and GSS)increased by 77%and 42%respectively.More ice melting in BSN is the main reason for phytoplankton proliferation.In 2010,there was an unusual peak of CHL concentration in GSN.The sea-sonal peaks of CHL appeared two weeks earlier in BS than in GS.The earlier and more extensive ice melting and the persistent nega-tive North Atlantic Oscillation(NAO)index may be the reasons for higher CHL blooms in 2010.The spatial average ICE concentra-tion of BS in BSN and BSS is 27%and 1.2%respectively.Negative NAO in the previous winter may lead to an increase in ICE in spring.NAO has a great influence on CHL and ICE in GS.Ice melting is positively correlated with CHL,especially in GS in recent decades,CHL has a significant positive correlation with surface mass concentration of dimethylsulfide(DMS),especially in GS.As an indicator of Arctic warming,BS needs more attention from Arctic researchers.

关 键 词：DIMETHYLSULFIDE CHLOROPHYLL ICE North Atlantic Oscillation ARCTIC 

分 类 号：P73[天文地球—海洋科学]