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Publication Date
1 May 2014

Exploratory High-Resolution Climate Simulations using the Community Atmosphere Model (CAM)



Extended, high-resolution 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. 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. 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.

“Exploratory High-Resolution Climate Simulations Using The Community Atmosphere Model (Cam)”. 2014. Journal Of Climate. doi:10.1175/JCLI-D-13-00387.1.
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