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典型文献
On the variability of vertical eddy heat flux in the upper ocean
文献摘要:
Ocean eddies produce strong vertical heat flux (VHF) in the upper ocean, exerting profound influences on the climate and ecosystem. Currently, mooring array provides a standard way to estimate the eddy-induced VHF (EVHF) based on the adiabatic potential density equation. Apart from the validity of adiabatic assumption, it remains unclear to what extent the estimated EVHF at a single location within a limited time period is representative of its climatological mean value. In this study, we analyzed the above issue by systematically evaluating the variability of EVHF simulated by a 1-km ocean model configured over the Kuroshio Extension. It is found that the EVHF at a single location exhibits pronounced variability. Even averaged over one year that is comparable to the current maintenance capacity of mooring array, the EVHF still deviates significantly from its climatological mean value. For more than 49% of locations in our computational domain (31°-40°N, 149°-166°E), the discrepancy between the one-year mean EVHF and its climatological mean value at the peaking depth is larger than the climatological mean itself. The mesoscale eddies play a dominant role in the variability of EVHF but contribute little to the climatological mean EVHF; the opposite is true for submesoscale eddies. Our findings indicate that nested mooring array allowing for isolating the effects of submesoscale eddies will be useful to obtain climatological mean EVHF.
文献关键词:
作者姓名:
Tianshi Du;Peiran Yang;Zhao Jing
作者机构:
Key Laboratory of Physical Oceanography and Frontiers Science Center for Deep Ocean Multispheres and Earth System,Ocean University of China,Qingdao 266100,China;Pilot National Laboratory for Marine Science and Technology(Qingdao),Qingdao 266237,China;International Laboratory for High-Resolution Earth System Prediction,Texas A&M University,College Station,TX 77843-3146,USA
引用格式:
[1]Tianshi Du;Peiran Yang;Zhao Jing-.On the variability of vertical eddy heat flux in the upper ocean)[J].海洋学报(英文版),2022(10):94-99
A类:
EVHF
B类:
On,variability,vertical,eddy,heat,flux,upper,ocean,Ocean,eddies,produce,strong,exerting,profound,influences,climate,ecosystem,Currently,mooring,array,provides,standard,way,induced,adiabatic,potential,density,equation,Apart,from,validity,assumption,remains,unclear,what,extent,estimated,single,within,limited,period,representative,climatological,mean,value,In,this,study,analyzed,above,issue,by,systematically,evaluating,simulated,model,configured,over,Kuroshio,Extension,It,that,exhibits,pronounced,Even,averaged,one,year,comparable,current,maintenance,capacity,still,deviates,significantly,For,more,than,locations,our,computational,domain,discrepancy,between,peaking,depth,larger,itself,play,dominant,role,contribute,little,opposite,true,submesoscale,Our,findings,indicate,nested,allowing,isolating,effects,will,useful,obtain
AB值:
0.502655
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