A climatology of thermodynamic phase of precipitating cloud is presented derived from global—land and ocean—, retrievals from Cloudsat, CALIPSO, and Moderate Resolution Imaging Spectroradiometer. Like precipitation rate, precipitation frequency is dominated by warm rain, defined as
rain produced via the liquid phase only, over the tropical oceans outside the Intertropical Convergence Zone and by cold rain, produced via the ice phase, over the midlatitude oceans and continents. Warm rain is very infrequent over the continents, with significant warm rain found only in onshore flow in the tropics, and over India, China, and Indochina. Comparison of the properties of precipitating and nonprecipitating
warm clouds shows that the scarcity of warm rain over land can be explained by smaller effective radii in continental clouds that delay the onset of precipitation. The results highlight the importance of ice-phase
processes for the global hydrological cycle and may lead to an improved parameterization of precipitation in general circulation models.
| Identifer | oai:union.ndltd.org:DRESDEN/oai:qucosa.de:bsz:15-qucosa-202461 |
| Date | 28 April 2016 |
| Creators | Mülmenstädt, Johannes, Sourdeval, Odran, Delanoë, Julien, Quaas, Johannes |
| Contributors | Universität Leipzig, Institut für Meterologie, Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS),, Universität Leipzig, Institut für Meterologie |
| Publisher | Universitätsbibliothek Leipzig |
| Source Sets | Hochschulschriftenserver (HSSS) der SLUB Dresden |
| Language | English |
| Detected Language | English |
| Type | doc-type:article |
| Format | application/pdf |
| Source | Geophysical research letters (2015), 42, S. 6502-6509 |
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