Performance assessment of the Community Climate System Model over the Bering Sea

2014 ◽  
Vol 34 (15) ◽  
pp. 3953-3966 ◽  
Author(s):  
J. M. Walston ◽  
G. A. Gibson ◽  
J. E. Walsh
Keyword(s):  
Performance Assessment ◽  
Bering Sea ◽  
Climate System ◽  
System Model ◽  
Community Climate System Model ◽  
Climate System Model ◽  
The Bering Sea ◽  
Community Climate

scholarly journals A Scalable and Adaptable Solution Framework within Components of the Community Climate System Model

2009 ◽  
pp. 332-341 ◽  
Author(s):  
Katherine J. Evans ◽  
Damian W. I. Rouson ◽  
Andrew G. Salinger ◽  
Mark A. Taylor ◽  
Wilbert Weijer ◽  
...  
Keyword(s):  
Climate System ◽  
System Model ◽  
Community Climate System Model ◽  
Climate System Model ◽  
Community Climate

scholarly journals Widely awaited community climate system model to be released soon

Eos ◽  
2002 ◽  
Vol 83 (11) ◽  
pp. 119
Author(s):  
Robert E. Dickinson ◽  
Jeffery Kiehl ◽  
Peter Gent
Keyword(s):  
Climate System ◽  
System Model ◽  
Community Climate System Model ◽  
Climate System Model ◽  
Community Climate

Sensitivity of Tropical Rainfall to Banda Sea Diffusivity in the Community Climate System Model

2008 ◽  
Vol 21 (23) ◽  
pp. 6445-6454 ◽  
Author(s):  
Markus Jochum ◽  
James Potemra
Keyword(s):  
General Circulation ◽  
Thick Layer ◽  
General Circulation Models ◽  
Climate System ◽  
System Model ◽  
Boreal Summer ◽  
Community Climate System Model ◽  
Climate System Model ◽  
Indonesian Seas ◽  
Community Climate

Abstract Several observational studies suggest that the vertical diffusivity in the Indonesian marginal seas is an order of magnitude larger than in the open ocean and what is used in most ocean general circulation models. The experiments described in this paper show that increasing the background diffusivity in the Banda Sea from the commonly used value of 0.1 cm2 s−1 to the observed value of 1 cm2 s−1 improves the watermass properties there by reproducing the observed thick layer of Banda Sea Water. The resulting reduced sea surface temperatures lead to weaker convection and a redistribution of precipitation, away from the Indonesian seas toward the equatorial Indian and Pacific Oceans. In particular, the boreal summer precipitation maximum of the Indonesian seas shifts northward from the Banda Sea toward Borneo, which reduces a longstanding bias in the simulation of the Austral–Asian Monsoon in the Community Climate System Model. Because of the positive feedback mechanisms inherent in tropical atmosphere dynamics, a reduction in Banda Sea heat loss of only 5% leads locally to a reduction in convection of 20%.

Origin of Pacific Multidecadal Variability in Community Climate System Model, Version 3 (CCSM3): A Combined Statistical and Dynamical Assessment

2008 ◽  
Vol 21 (1) ◽  
pp. 114-133 ◽  
Author(s):  
Yafang Zhong ◽  
Zhengyu Liu ◽  
R. Jacob
Keyword(s):  
North Pacific ◽  
Climate System ◽  
System Model ◽  
Community Climate System Model ◽  
Climate System Model ◽  
Multidecadal Variability ◽  
Model Version ◽  
The North ◽  
The North Pacific ◽  
Community Climate

Abstract Observations indicate that Pacific multidecadal variability (PMV) is a basinwide phenomenon with robust tropical–extratropical linkage, though its genesis remains the topic of much debate. In this study, the PMV in the Community Climate System Model, version 3 (CCSM3) is investigated with a combined statistical and dynamical approach. In agreement with observations, the modeled North Pacific climate system undergoes coherent multidecadal atmospheric and oceanic variability of a characteristic quasi-50-yr time scale, with apparent connections to the tropical Indo-Pacific. The statistical assessment based on the CCSM3 control integration cannot exclusively identify the origin of the modeled multidecadal linkage, while confirming the two-way interactions between the tropical and extratropical Pacific. Two sensitivity experiments are performed to further investigate the origin of the PMV. With the atmosphere decoupled from the tropical ocean, multidecadal variability in the North Pacific climate remains outstanding. In contrast, without midlatitude oceanic feedback to atmosphere, an experiment shows much reduced multidecadal power in both extratropical atmosphere and surface ocean; moreover, the tropical multidecadal variability seen in the CCSM3 control run virtually disappears. The combined statistical and dynamical assessment supports a midlatitude coupled origin for the PMV, which can be described as follows: extratropical large-scale air–sea interaction gives rise to multidecadal variability in the North Pacific region; this extratropical signal then imprints itself in the tropical Indo–Pacific climate system, through a robust tropical–extratropical teleconnection. This study highlights a midlatitude origin of multidecadal tropical–extratropical linkage in the Pacific in the CCSM3.

Initial-value predictability of Antarctic sea ice in the Community Climate System Model 3

2013 ◽  
Vol 40 (10) ◽  
pp. 2121-2124 ◽  
Author(s):  
Marika M. Holland ◽  
Edward Blanchard-Wrigglesworth ◽  
Jennifer Kay ◽  
Steven Vavrus
Keyword(s):  
Sea Ice ◽  
Climate System ◽  
System Model ◽  
Initial Value ◽  
Community Climate System Model ◽  
Climate System Model ◽  
Antarctic Sea Ice ◽  
Community Climate
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