Validation, parameterization dependence, and future projection of daily precipitation simulated with a high-resolution atmospheric GCM

Details Validation, parameterization dependence, and future projection of daily precipitation simulated with a high-resolution atmospheric GCM Validation, parameterization dependence, and future projection of daily precipitation simulated with a high-resolution atmospheric GCM

Mar 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3206708e&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 6, CiteID L06708

Computer Science

Performance

15

Global Change: Global Climate Models (3337, 4928), Atmospheric Processes: Precipitation (1854), Atmospheric Processes: Global Climate Models (1626, 4928), Global Change: Atmosphere (0315, 0325), Atmospheric Processes: Convective Processes

Scientific paper

A relatively high-resolution (T106) atmospheric general circulation model (AGCM) was used to simulate the present-day climate with two different assumptions in cumulus parameterization. While the two runs show comparable performance for the annual mean precipitation, one shows much better agreement with satellite-based analysis data for the extreme daily precipitation than the other. Accumulation of convectively available potential energy is shown to be important for more realistic intensities of extreme precipitation. This demonstrates that the performance of an AGCM for extreme precipitation is strongly dependent on cumulus parameterization even when the resolution of the model is as high as 1°, but can be reasonably good with an adequate choice of cumulus parameterization. A time-slice doubled CO2 experiment was also conducted with the better version of the model. Though the global mean percentage change is larger for extreme precipitation than for the annual mean, this relation is found to vary regionally.

Affiliated with

Also associated with

No associations

Rating

Validation, parameterization dependence, and future projection of daily precipitation simulated with a high-resolution atmospheric GCM does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Validation, parameterization dependence, and future projection of daily precipitation simulated with a high-resolution atmospheric GCM, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Validation, parameterization dependence, and future projection of daily precipitation simulated with a high-resolution atmospheric GCM will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1217869