Effects of precipitation physics algorithms on a simulated climate in a general circulation model

Suryun Ham, Song You Hong, Young Hwa Byun, Jhoon Kim

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


The purpose of this study is to investigate the effects of precipitation physics in a general circulation model (GCM) on a simulated climate. Experiments are performed under the single column model (SCM) framework to examine basic features and under the general circulation model framework to investigate the impact on seasonal simulation. The SCM simulation shows that convection processes in the model have a considerable influence on the change in vertical thermodynamic structure, resulting in a change in precipitation, whereas in the GCM framework stratiform precipitation physics play a distinct role in changing the atmospheric structure. The GCM experiments also show that the overall reduction of precipitation in simulations with prognostic stratiform precipitation physics is highly related to changes in cloudiness and corresponding changes in radiative flux, which in turn leads to the reduction of convective activities.

Original languageEnglish
Pages (from-to)1924-1934
Number of pages11
JournalJournal of Atmospheric and Solar-Terrestrial Physics
Issue number17-18
Publication statusPublished - 2009 Dec

Bibliographical note

Funding Information:
This work was supported by the Korea Meteorological Administration Research and Development Program under Grant CATER 2007-4406.

All Science Journal Classification (ASJC) codes

  • Geophysics
  • Atmospheric Science
  • Space and Planetary Science


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