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Lee, Myong-In
Climate-Environment Modeling Lab
Research Interests
  • Climate Change, Seasonal Prediction, Extreme Weather, Aerosol


The aqua-planet experiment (APE): CONTROL SST simulation

DC Field Value Language Blackburn, Michael ko Williamson, David L. ko Nakajima, Kensuke ko Ohfuchi, Wataru ko Takahashi, Yoshiyuki O. ko Hayashi, Yoshi-Yuki ko Nakamura, Hisashi ko Ishiwatari, Masaki ko McGregor, John L. ko Borth, Hartmut ko Wirth, Volkmar ko Frank, Helmut ko Bechtold, Peter ko Wedi, Nils P. ko Tomita, Hirofumi ko Satoh, Masaki ko Zhao, Ming ko Held, Isaac M. ko Suarez, Max J. ko Lee, Myong-In ko Watanabe, Masahiro ko Kimoto, Masahide ko Liu, Yimin ko Wang, Zaizhi ko Molod, Andrea ko Rajendran, Kavirajan ko Kitoh, Akio ko Stratton, Rachel ko 2014-04-10T02:36:55Z - 2013-11-15 ko 2013-10 -
dc.identifier.citation JOURNAL OF THE METEOROLOGICAL SOCIETY OF JAPAN, v.91, no.1 A, pp.17 - 56 ko
dc.identifier.issn 0026-1165 ko
dc.identifier.uri -
dc.identifier.uri ko
dc.description.abstract Climate simulations by 16 atmospheric general circulation models (AGCMs) are compared on an aqua-planet, a water-covered Earth with prescribed sea surface temperature varying only in latitude. The idealised configuration is designed to expose differences in the circulation simulated by different models. Basic features of the aqua-planet climate are characterised by comparison with Earth. The models display a wide range of behaviour. The balanced component of the tropospheric mean flow, and mid-latitude eddy covariances subject to budget constraints, vary relatively little among the models. In contrast, differences in damping in the dynamical core strongly influence transient eddy amplitudes. Historical uncertainty in modelled lower stratospheric temperatures persists in APE. Aspects of the circulation generated more directly by interactions between the resolved fluid dynamics and parameterized moist processes vary greatly. The tropical Hadley circulation forms either a single or double inter-tropical convergence zone (ITCZ) at the equator, with large variations in mean precipitation. The equatorial wave spectrum shows a wide range of precipitation intensity and propagation characteristics. Kelvin mode-like eastward propagation with remarkably constant phase speed dominates in most models. Westward propagation, less dispersive than the equatorial Rossby modes, dominates in a few models or occurs within an eastward propagating envelope in others. The mean structure of the ITCZ is related to precipitation variability, consistent with previous studies. The aqua-planet global energy balance is unknown but the models produce a surprisingly large range of top of atmosphere global net flux, dominated by differences in shortwave reflection by clouds. A number of newly developed models, not optimised for Earth climate, contribute to this. Possible reasons for differences in the optimised models are discussed. The aqua-planet configuration is intended as one component of an experimental hierarchy used to evaluate AGCMs. This comparison does suggest that the range of model behaviour could be better understood and reduced in conjunction with Earth climate simulations. Controlled experimentation is required to explore individual model behaviour and investigate convergence of the aqua-planet climate with increasing resolution. ko
dc.description.statementofresponsibility close -
dc.language ENG ko
dc.subject Comparison of atmospheric general circulation models (GCMS) ko
dc.subject Global energy buget ko
dc.subject Idealized model configuration ko
dc.subject Precipitation ko
dc.subject Tropical wave spectrum ko
dc.title The aqua-planet experiment (APE): CONTROL SST simulation ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-84886797645 ko
dc.identifier.wosid 000327052500003 ko
dc.type.rims ART ko
dc.description.wostc 11 *
dc.description.scopustc 8 * 2014-10-18 * 2014-07-12 *
dc.identifier.doi 10.2151/jmsj.2013-A02 ko
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