reference : Exploratory high-resolution climate simulations using the Community Atmosphere Model (CAM)

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/reference/781c3282-d36b-4082-8b17-4113db5e9827
Bibliographic fields
reftype Journal Article
Abstract Extended, 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.
Author Julio T. Bacmeister; Michael F. Wehner; Richard B. Neale; Andrew Gettelman; Cecile Hannay; Peter H. Lauritzen; Julie M. Caron; John E. Truesdale
DOI 10.1175/JCLI-D-13-00387.1
Issue 9
Journal Journal of Climate
Keywords Climate models
Pages 3073-3099
Title Exploratory high-resolution climate simulations using the Community Atmosphere Model (CAM)
Volume 27
Year 2014
Bibliographic identifiers
.reference_type 0
_record_number 19680
_uuid 781c3282-d36b-4082-8b17-4113db5e9827