The Barrier Layer of the Atlantic warm pool: Formation mechanism and influence on the mean climate SCIE SCOPUS

DC Field Value Language
dc.contributor.author Balaguru, K. -
dc.contributor.author Chang, P. -
dc.contributor.author Saravanan, R. -
dc.contributor.author Jang, C. J. -
dc.date.accessioned 2020-04-20T07:25:16Z -
dc.date.available 2020-04-20T07:25:16Z -
dc.date.created 2020-01-28 -
dc.date.issued 2012 -
dc.identifier.issn 0280-6495 -
dc.identifier.uri https://sciwatch.kiost.ac.kr/handle/2020.kiost/3748 -
dc.description.abstract Many coupled general circulation models (CGCMs) tend to overestimate the salinity in the Atlantic warm pool or the Northwestern Tropical Atlantic (NWTA) and underestimate the surface salinity in the subtropical salinity maxima region. Most of these models also suffer from a sea-surface temperature (SST) bias in the NWTA region, leading to suggestions that the upper ocean salinity stratification may need to be improved in order to improve the barrier layer (BL) simulations and thus the SST through BL-SST-intertropical convergence zone feedbacks. In the present study, we use a CGCM to perform a set of idealised numerical experiments to test and understand the sensitivity of the BL and consequently SST in the NWTA region to freshwater flux and hence the upper ocean salinity stratification. We find that the BL of the NWTA is sensitive to upper ocean salinity changes in the Amazon river discharge region and the subtropical salinity maxima region. The BL phenomenon is further manifested by the formation of winter temperature inversions in our model simulations, the maximum magnitude of inversions being about 0.2 degrees C. The atmospheric response causes a statistically significant reduction of mean precipitation and SST in the equatorial Atlantic region and helps improve the respective biases by 10-15%. In the region of improved BL simulation, the SST change is positive and in the right direction of bias correction, albeit weak. -
dc.description.uri 1 -
dc.language English -
dc.publisher CO-ACTION PUBLISHING -
dc.subject OCEAN-ATMOSPHERE MODEL -
dc.subject TROPICAL ATLANTIC -
dc.subject MIXED-LAYER -
dc.subject EL-NINO -
dc.subject SYSTEM MODEL -
dc.subject PACIFIC -
dc.subject SALINITY -
dc.subject AMAZON -
dc.subject SEA -
dc.subject PRECIPITATION -
dc.title The Barrier Layer of the Atlantic warm pool: Formation mechanism and influence on the mean climate -
dc.type Article -
dc.citation.title TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY -
dc.citation.volume 64 -
dc.contributor.alternativeName 장찬주 -
dc.identifier.bibliographicCitation TELLUS SERIES A-DYNAMIC METEOROLOGY AND OCEANOGRAPHY, v.64 -
dc.identifier.doi 10.3402/tellusa.v64i0.18162 -
dc.identifier.wosid 000303682200001 -
dc.type.docType Article -
dc.description.journalClass 1 -
dc.subject.keywordPlus OCEAN-ATMOSPHERE MODEL -
dc.subject.keywordPlus TROPICAL ATLANTIC -
dc.subject.keywordPlus MIXED-LAYER -
dc.subject.keywordPlus EL-NINO -
dc.subject.keywordPlus SYSTEM MODEL -
dc.subject.keywordPlus PACIFIC -
dc.subject.keywordPlus SALINITY -
dc.subject.keywordPlus AMAZON -
dc.subject.keywordPlus SEA -
dc.subject.keywordPlus PRECIPITATION -
dc.subject.keywordAuthor barrier layer -
dc.subject.keywordAuthor upper ocean salinity -
dc.subject.keywordAuthor temperature inversions -
dc.subject.keywordAuthor Atlantic climate -
dc.subject.keywordAuthor Amazon river discharge -
dc.relation.journalWebOfScienceCategory Meteorology & Atmospheric Sciences -
dc.relation.journalWebOfScienceCategory Oceanography -
dc.description.journalRegisteredClass scie -
dc.description.journalRegisteredClass scopus -
dc.relation.journalResearchArea Meteorology & Atmospheric Sciences -
dc.relation.journalResearchArea Oceanography -
Appears in Collections:
Ocean Climate Solutions Research Division > Ocean Circulation & Climate Research Department > 1. Journal Articles
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