pure and applied geophysics

, Volume 123, Issue 6, pp 941–950 | Cite as

On the influence of microphysics parametrization on the rainfall rates in numerical models of clouds

  • Wojciech W. Grabowski


Accuracy of formulas for growth by accretion and evaporation of rain in bulk parametrization of these processes for the case of light and moderate precipitation is investigated. It is done by comparison of results from two simple models: with bulk approach and with exact calculations of growth or evaporation of drops in each size bin separately. Growth by accretion is accurately represented in bulk parametrization but rain evaporation is overpredicted. Corrected formula for rain evaporation is suggested.

Key words

Microphysics palametrization rainfall rates numerical models of clouds 


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Copyright information

© Birkhäuser Verlag 1985

Authors and Affiliations

  • Wojciech W. Grabowski
    • 1
  1. 1.Institute of GeophysicsUniversity of WarsawWarsawPoland

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