Changes between Version 18 and Version 19 of doc/tec/microphysics
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- May 22, 2018 12:31:19 PM (7 years ago)
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doc/tec/microphysics
v18 v19 18 18 instead of ''θ'' as described in Sect. [wiki:doc/tec/gov governing equations]. Since ''q'' and ''θ'',,l,, are conserved quantities for wet adiabatic processes, condensation/evaporation is not considered for these variables. 19 19 20 PALM offers three different schemes for the treatment of liquid phase microphysics. The Kessler 20 21 Liquid phase microphysics are parametrized following the two-moment scheme of [#seifert2001 Seifert and Beheng (2001],[#seifert2006 2006)], which is based on the separation of the droplet spectrum into droplets with radii < 40 μm (cloud droplets) and droplets with radii ≥ 40 μm (rain droplets). The model predicts the first two moments of these partial droplet spectra, namely cloud and rain 21 22 droplet number concentration (''N'',,c,, and ''N'',,r,,, respectively) as well as cloud and rain water mixing ratio … … 399 400 * [=#sommeria1977]'''Sommeria G, Deardorff JW.''' 1977. Subgrid-scale condensation in models of nonprecipitating clouds. J. Atmos. Sci. 34: 344–355. 400 401 402 * [=#kessler1969]'''Kessler E''' 1969. On the Distribution and Continuity of Water Substance in Atmospheric Circulation. Meteor. Monogr: 1-84. 403 401 404 * [=#pruppacher1997]'''Pruppacher HR, and Klett JD.''' 1997. Microphysics of Clouds and Precipitation. 2nd Edn. Kluwer Academic Publishers. Dordrecht. 402 405