ENSO sensitivity to convective triggers in a coupled GCM
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 장연수 | - |
dc.contributor.author | 국종성 | - |
dc.contributor.author | 김동훈 | - |
dc.contributor.author | 김영호 | - |
dc.date.accessioned | 2020-07-16T18:52:53Z | - |
dc.date.available | 2020-07-16T18:52:53Z | - |
dc.date.created | 2020-02-11 | - |
dc.date.issued | 2010-10-14 | - |
dc.identifier.uri | https://sciwatch.kiost.ac.kr/handle/2020.kiost/28702 | - |
dc.description.abstract | A series of 100-year long simulations is performed using GFDL CM2.1, by varying the Tokioka parameter, which is the minimum entrainment rate threshold in the cumulus parameterization of a GCM. It is found that the magnitude of ENSO simulated in this model increases with the Tokioka parameter. Changing the Tokioka parameter alters both the Pacific-Ocean mean state and ENSO variability, which are tightly coupled. When a large Tokioka parameter is used, deep convection is highly suppressed; thereby the amount of high cloud is reduced. With less high cloud in the western Pacific under large Tokioka parameter, the east-west asymmetry in the Pacific-basin mean state is reduced. The atmospheric responses to ENSO-related SST forcing are shifted eastward, which leads to stronger ENSO variability. It is suggested that eastward shift of the atmospheric response is associated with east-west asymmetry and resultant wetness over the eastern Pacific. Our results suggest that the east-west asymmetry is one of the metrics for ENSO amplitude in coupled climate models. | - |
dc.description.uri | 2 | - |
dc.language | English | - |
dc.publisher | 한국기상학회 | - |
dc.relation.isPartOf | 2010년 한국기상학회 가을 학술대회 | - |
dc.title | ENSO sensitivity to convective triggers in a coupled GCM | - |
dc.type | Conference | - |
dc.citation.conferencePlace | KO | - |
dc.citation.endPage | 113 | - |
dc.citation.startPage | 112 | - |
dc.citation.title | 2010년 한국기상학회 가을 학술대회 | - |
dc.contributor.alternativeName | 장연수 | - |
dc.contributor.alternativeName | 국종성 | - |
dc.contributor.alternativeName | 김영호 | - |
dc.identifier.bibliographicCitation | 2010년 한국기상학회 가을 학술대회, pp.112 - 113 | - |
dc.description.journalClass | 2 | - |