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contributor authorDelworth, Thomas L.
contributor authorRosati, Anthony
contributor authorAnderson, Whit
contributor authorAdcroft, Alistair J.
contributor authorBalaji, V.
contributor authorBenson, Rusty
contributor authorDixon, Keith
contributor authorGriffies, Stephen M.
contributor authorLee, Hyun-Chul
contributor authorPacanowski, Ronald C.
contributor authorVecchi, Gabriel A.
contributor authorWittenberg, Andrew T.
contributor authorZeng, Fanrong
contributor authorZhang, Rong
date accessioned2017-06-09T17:04:40Z
date available2017-06-09T17:04:40Z
date copyright2012/04/01
date issued2011
identifier issn0894-8755
identifier otherams-79032.pdf
identifier urihttp://onlinelibrary.yabesh.ir/handle/yetl/4221768
description abstracthe authors present results for simulated climate and climate change from a newly developed high-resolution global climate model [Geophysical Fluid Dynamics Laboratory Climate Model version 2.5 (GFDL CM2.5)]. The GFDL CM2.5 has an atmospheric resolution of approximately 50 km in the horizontal, with 32 vertical levels. The horizontal resolution in the ocean ranges from 28 km in the tropics to 8 km at high latitudes, with 50 vertical levels. This resolution allows the explicit simulation of some mesoscale eddies in the ocean, particularly at lower latitudes.Analyses are presented based on the output of a 280-yr control simulation; also presented are results based on a 140-yr simulation in which atmospheric CO2 increases at 1% yr?1 until doubling after 70 yr.Results are compared to GFDL CM2.1, which has somewhat similar physics but a coarser resolution. The simulated climate in CM2.5 shows marked improvement over many regions, especially the tropics, including a reduction in the double ITCZ and an improved simulation of ENSO. Regional precipitation features are much improved. The Indian monsoon and Amazonian rainfall are also substantially more realistic in CM2.5.The response of CM2.5 to a doubling of atmospheric CO2 has many features in common with CM2.1, with some notable differences. For example, rainfall changes over the Mediterranean appear to be tightly linked to topography in CM2.5, in contrast to CM2.1 where the response is more spatially homogeneous. In addition, in CM2.5 the near-surface ocean warms substantially in the high latitudes of the Southern Ocean, in contrast to simulations using CM2.1.
publisherAmerican Meteorological Society
titleSimulated Climate and Climate Change in the GFDL CM2.5 High-Resolution Coupled Climate Model
typeJournal Paper
journal volume25
journal issue8
journal titleJournal of Climate
identifier doi10.1175/JCLI-D-11-00316.1
journal fristpage2755
journal lastpage2781
treeJournal of Climate:;2011:;volume( 025 ):;issue: 008
contenttypeFulltext


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