Exploratory High-Resolution Climate Simulations using the Community Atmosphere Model (CAM)Source: Journal of Climate:;2013:;volume( 027 ):;issue: 009::page 3073Author:Bacmeister, Julio T.
,
Wehner, Michael F.
,
Neale, Richard B.
,
Gettelman, Andrew
,
Hannay, Cecile
,
Lauritzen, Peter H.
,
Caron, Julie M.
,
Truesdale, John E.
DOI: 10.1175/JCLI-D-13-00387.1Publisher: American Meteorological Society
Abstract: xtended, high-resolution (0.23° latitude ? 0.31° longitude) simulations with Community Atmosphere Model versions 4 and 5 (CAM4 and CAM5) are examined and compared with results from climate simulations conducted at a more typical resolution of 0.9° latitude ? 1.25° longitude. Overall, the simulated climate of the high-resolution experiments is not dramatically better than that of their low-resolution counterparts. Improvements appear primarily where topographic effects may be playing a role, including a substantially improved summertime Indian monsoon simulation in CAM4 at high resolution. Significant sensitivity to resolution is found in simulated precipitation over the southeast United States during winter. Some aspects of the simulated seasonal mean precipitation deteriorate notably at high resolution. Prominent among these is an exacerbated Pacific ?double ITCZ? bias in both models. Nevertheless, while large-scale seasonal means are not dramatically better at high resolution, realistic tropical cyclone (TC) distributions are obtained. Some skill in reproducing interannual variability in TC statistics also appears.
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contributor author | Bacmeister, Julio T. | |
contributor author | Wehner, Michael F. | |
contributor author | Neale, Richard B. | |
contributor author | Gettelman, Andrew | |
contributor author | Hannay, Cecile | |
contributor author | Lauritzen, Peter H. | |
contributor author | Caron, Julie M. | |
contributor author | Truesdale, John E. | |
date accessioned | 2017-06-09T17:08:57Z | |
date available | 2017-06-09T17:08:57Z | |
date copyright | 2014/05/01 | |
date issued | 2013 | |
identifier issn | 0894-8755 | |
identifier other | ams-80151.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4223011 | |
description abstract | xtended, high-resolution (0.23° latitude ? 0.31° longitude) simulations with Community Atmosphere Model versions 4 and 5 (CAM4 and CAM5) are examined and compared with results from climate simulations conducted at a more typical resolution of 0.9° latitude ? 1.25° longitude. Overall, the simulated climate of the high-resolution experiments is not dramatically better than that of their low-resolution counterparts. Improvements appear primarily where topographic effects may be playing a role, including a substantially improved summertime Indian monsoon simulation in CAM4 at high resolution. Significant sensitivity to resolution is found in simulated precipitation over the southeast United States during winter. Some aspects of the simulated seasonal mean precipitation deteriorate notably at high resolution. Prominent among these is an exacerbated Pacific ?double ITCZ? bias in both models. Nevertheless, while large-scale seasonal means are not dramatically better at high resolution, realistic tropical cyclone (TC) distributions are obtained. Some skill in reproducing interannual variability in TC statistics also appears. | |
publisher | American Meteorological Society | |
title | Exploratory High-Resolution Climate Simulations using the Community Atmosphere Model (CAM) | |
type | Journal Paper | |
journal volume | 27 | |
journal issue | 9 | |
journal title | Journal of Climate | |
identifier doi | 10.1175/JCLI-D-13-00387.1 | |
journal fristpage | 3073 | |
journal lastpage | 3099 | |
tree | Journal of Climate:;2013:;volume( 027 ):;issue: 009 | |
contenttype | Fulltext |