Simulation of the meridional overturning circulation in the Atlantic Ocean surface driving field
Abstract
based on the global Ocean - sea ice coupling numerical mode , studied the trans-Atlantic circulation of sea-table driving field with different time and spatial resolution (Atlantic meridional overturningcirculation , Amoc and sea surface temperature ( seasurface Temperature , SST ) Impersonation effect . The results of the Sensitivity numerical experiment show that The difference between, and the time and spatial resolution of the Sea-table driving field will not only affect SST simulation , and can significantly affect amoc intensity simulation . compared to high time resolution Sea table driving field , reduction in time and space resolution results in Amoc simulate intensity decrease and SST elevated . average driving field driver amoc ratio 6 h Resolution driving field driven control experiment reduction 6.7Sv , lowers 34%; Same as 6hdivide Resolution , Rough space resolutions atmospheric driving field simulations Amoc lower than space resolution experiment 1.4Sv , the reduces the 7%. to the ocean upper flow field and the sea surface heat flux Further analysis indicates that , Low-time and spatial-resolution sea surface wind field weakening is caused by Amocweakens and SST The main reason for the elevation .
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griffies S m,biastocii A, boning C,et al. coordinated Ocean-ice reference experiments (cores) [J]. Ocean model-ling,2009, 1 : 1-46.
Bryden i l,longworth i R, CUNNINGHAM S slowing of the Atlantic meridional overturning circulation at 25 0 n[j]. Na- ture, $ , 438 (7068): 655-657.
Danabasoglu g,yeager S G,bailey D, et al. North Atlantic simulations in coordinated ocean-ice reference ex-perime NTS Phase II (core-ii). Part I:meanstates[j]. Ocean modelling,2014,73 (1): 76-107.
Yongjiang , Song Yi . modulation of global warming trends by ocean circulation : Is based on the fgoal^s2 Numerical Simulation study of []. Atmospheric Science , 2013,37 (2): 395-410.
delwortii T , Rosatia,anderson W,et al. Simulated climate and climate change in the GFDL CM2.5 high-resolution coupled climate model[j]. Journalofclimate,,, (8): 2755-2781.
The U S AMOC Science Team,second Annual Progress A for a jsost near-term priority assessing meridional over Turning circulation variability : implications for rapid climate change[r]. Washington,dc:u S clivar Of-fice,2009.
Condron a,renfrew I a,the impact of polar mesoscale storms on northeast Atlantic Ocean Circulation[j]. Nature Ge-oscience, 2013 , 6 (1 ): 34-37.
beena B s,von storcii J s,effects of fluctuating daily surface fluxes on the Time-mean Oceanic]. Climate Dynamics, 2009, (1) : 1-18.
PICK ART R s,spall m a,ribergaard m H,et al. Deep convection in the Irminger sea forced by the Greenland tip jet [J]. nature , 2003,424 (6945): 152-156.
LARGE W/yeager S. The global climatology of interannually varying air sea flux data set[j]. Climate Dynam-ics,2009, 2-3: 341-364 .
LARGE W g/yeager diurnal to decadal global forcing for ocean and Sea-ice models : The data sets and flux Cli-matologies[z].# : citeseer.
Ezer T. On the seasonal mixed layer simulated by a Basin-scale ocean model and the Mellor-yamada turbu-lence]. Journal of Geophysical Atmospheres , To , C7: 16843-16855.
griffies Elements of the Modular Ocean Model (MOM) [Z]. NOAA Geophysical Fluid Dynamics Laborato-ry. Princeton,USA,% .
WINTON M. A reformulated Three-layer sea ice model[j]. Journal of atmospheric and oceanic technolo-gy,2000 »(4) : 525-531
Srokosz M,bryden H. Observing Atlantic meridional overturning circulation yields a decade of inevitable Sur prises [J]. Science, 2015, 348 (6241 ): 1255575.
iieuzc,heywood KJ , Stevensdp,et al. Southernocean Bottom water characteristics inCMIP5 mod-els[j]. Geophysical Letters,2013, (7): 1409-1414.
ENGLAND M H. The age of water and ventilation timescales in a global ocean model[j]. Journal of physical oceanography, 1995, (one) : 2756-2777 .
DOI: http://dx.doi.org/10.18686/jaoe.v4i1.1165
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