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A Revised Approach to Ice Microphysical Processes for the Bulk Parameterization of Clouds and Precipitation

Monthly Weather Review · 2004 · Vol. 132(1) · pp. 103–120
Song-You HongJimy DudhiaShu‐Hua Chen

Abstract

A revised approach to cloud microphysical processes in a commonly used bulk microphysics parameterization and the importance of correctly representing properties of cloud ice are discussed. Several modifications are introduced to more realistically simulate some of the ice microphysical processes. In addition to the assumption that ice nuclei number concentration is a function of temperature, a new and separate assumption is developed in which ice crystal number concentration is a function of ice amount. Related changes in ice microphysics are introduced, and the impact of sedimentation of ice crystals is also investigated.

Meteorological Phenomena and SimulationsAtmospheric aerosols and cloudsFire effects on ecosystemsIce crystalsMesoscale meteorologySnowIce nucleusCloud physicsPrecipitationEnvironmental scienceIce cloudAtmospheric sciencesThunderstorm

Funding

  • Korea Meteorological Administration
  • Korea Science and Engineering Foundation
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