Computer Science – Performance
Scientific paper
Oct 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3219703y&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 19, CiteID L19703
Computer Science
Performance
7
Global Change: Climate Variability (1635, 3305, 3309, 4215, 4513), Global Change: Global Climate Models (3337, 4928), Atmospheric Processes: Climate Change And Variability (1616, 1635, 3309, 4215, 4513), Atmospheric Processes: Radiative Processes
Scientific paper
In this study we present a simple scheme for the diagnosis of the strength of climate feedback. The scheme is based on straightforward calculations using the conventional output of a general circulation model (GCM), and evaluates the major radiative feedbacks concerning the surface, clear-sky atmosphere, and clouds. We place an emphasis on evaluating shortwave (SW) feedbacks. Assumptions involved in extracting the SW surface feedback are validated by accurate calculations and considered to be acceptable. The performance of our scheme is demonstrated via a doubled CO2 experiment. Compared to conventional methods, we can evaluate SW feedbacks more accurately while the evaluation of LW feedbacks is essentially similar between the two methods. The ready application of our scheme to the output of various GCMs should be of great use for multi-model ensemble analyses, which contribute to reducing the uncertainty in future climate projections.
Emori Seita
Kimoto Masahide
Nozawa Takaya
Ogura Tomo'o.
Tsushima Yoko
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