Scheme for calculation of multi-layer cloudiness and precipitation for climate models of intermediate complexity

dc.bibliographicCitation.firstPage1745eng
dc.bibliographicCitation.issue5eng
dc.bibliographicCitation.journalTitleGeoscientific Model Developmenteng
dc.bibliographicCitation.lastPage1765eng
dc.bibliographicCitation.volume6
dc.contributor.authorEliseev, A.V.
dc.contributor.authorCoumou, D.
dc.contributor.authorChernokulsky, A.V.
dc.contributor.authorPetoukhov, V.
dc.contributor.authorPetri, S.
dc.date.accessioned2018-11-22T17:16:52Z
dc.date.available2019-06-26T17:17:52Z
dc.date.issued2013
dc.description.abstractIn this study we present a scheme for calculating the characteristics of multi-layer cloudiness and precipitation for Earth system models of intermediate complexity (EMICs). This scheme considers three-layer stratiform cloudiness and single-column convective clouds. It distinguishes between ice and droplet clouds as well. Precipitation is calculated by using cloud lifetime, which depends on cloud type and phase as well as on statistics of synoptic and convective disturbances. The scheme is tuned to observations by using an ensemble simulation forced by the ERA-40-derived climatology for 1979–2001. Upon calibration, the scheme realistically reproduces basic features of fields of cloud fractions, cloud water path, and precipitation. The simulated globally and annually averaged total cloud fraction is 0.59, and the simulated globally averaged annual precipitation is 100 cm yr−1. Both values agree with empirically derived values. The simulated cloud water path is too small, probably because the simulated vertical extent of stratiform clouds is too small. Geographical distribution and seasonal changes of calculated cloud fraction and precipitation are broadly realistic as well. However, some important regional biases still remain in the scheme, e.g. too little precipitation in the tropics. We discuss possibilities for future improvements in the scheme.
dc.description.versionpublishedVersioneng
dc.formatapplication/pdf
dc.formatapplication/pdf
dc.identifier.urihttps://doi.org/10.34657/1238
dc.identifier.urihttps://oa.tib.eu/renate/handle/123456789/480
dc.language.isoengeng
dc.publisherMünchen : European Geopyhsical Union
dc.relation.doihttps://doi.org/10.5194/gmd-6-1745-2013
dc.rights.licenseCC BY 3.0 Unportedeng
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/eng
dc.subject.ddc550
dc.subject.otherCloud covereng
dc.subject.otherconvective cloudeng
dc.subject.otherdisturbanceeng
dc.subject.otherdropleteng
dc.subject.otherfractionationeng
dc.subject.othermathematical analysiseng
dc.subject.othernumerical modeleng
dc.subject.otherprecipitation (climatology)eng
dc.subject.otherseasonal variationeng
dc.subject.otherstratiform cloudeng
dc.titleScheme for calculation of multi-layer cloudiness and precipitation for climate models of intermediate complexity
dc.typeArticleeng
dc.typeTexteng
tib.accessRightsopenAccesseng
wgl.contributorPIKeng
wgl.subjectGeowissenschafteneng
wgl.typeZeitschriftenartikeleng
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