Cloud-resolving and single-column simulations of a warm-frontal cloud system: Implications for the parameterization of layered clouds in GCMs

Details Cloud-resolving and single-column simulations of a warm-frontal cloud system: Implications for the parameterization of layered clouds in GCMs Cloud-resolving and single-column simulations of a warm-frontal cloud system: Implications for the parameterization of layered clouds in GCMs

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.3113s&link_type=abstract

Geophysical Research Letters, Volume 26, Issue 20, p. 3113-3116

Physics

Global Change, Global Change: Atmosphere, Meteorology And Atmospheric Dynamics: General Circulation, Meteorology And Atmospheric Dynamics: Numerical Modeling And Data Assimilation

Scientific paper

A winter oceanic cyclonic cloud system was simulated by using both a cloud-resolving model (CRM) and two single-column models (SCMs) utilizing different approaches to parameterize layer clouds. When driven with advective forcing derived from the CRM, the SCMs can capture the general developments of the large-scale cloud field during the warm-frontal passage. However, the vertical cloud structures differed significantly among the models. Some of the differences in the model cloud structures can be attributed to the lack of, or inappropriateness of the parameterizations of some cloud microphysical processes and subgrid cloudiness in current GCM prognostic cloud schemes. The high resolution CRM results will be valuable in identifying such deficiencies in current GCM cloud schemes and in the future developments and calibrations of these schemes.

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