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dc.contributor.authorEltahir, Elfatih A. B.
dc.contributor.authorGianotti, Rebecca Louise
dc.date.accessioned2016-03-02T20:27:03Z
dc.date.available2016-03-02T20:27:03Z
dc.date.issued2014-02
dc.date.submitted2013-08
dc.identifier.issn0894-8755
dc.identifier.issn1520-0442
dc.identifier.urihttp://hdl.handle.net/1721.1/101414
dc.description.abstractThis paper describes a new method for parameterizing the conversion of convective cloud liquid water to rainfall (“autoconversion”) that can be used within large-scale climate models, and evaluates the new method using the Regional Climate Model, version 3 (RegCM3), coupled to the land surface scheme Integrated Biosphere Simulator (IBIS). The new method is derived from observed distributions of cloud water content and is constrained by observations of cloud droplet characteristics and climatological rainfall intensity. This new method explicitly accounts for subgrid variability with respect to cloud water density and is independent of model resolution, making it generally applicable for large-scale climate models. This work builds on the development of a new parameterization method for convective cloud fraction, which was described in Part I. imulations over the Maritime Continent using the Emanuel convection scheme show significant improvement in model performance, not only with respect to convective rainfall but also in shortwave radiation, net radiation, and turbulent surface fluxes of latent and sensible heat, without any additional modifications made to the simulation of those variables. Model improvements are demonstrated over a 19-yr validation period as well as a shorter 4-yr evaluation. Model performance with the Grell convection scheme is not similarly improved and reasons for this outcome are discussed. This work illustrates the importance of representing observed subgrid-scale variability in diurnally varying convective processes for simulations of the Maritime Continent region.en_US
dc.description.sponsorshipSingapore. National Research Foundation (Singapore-MIT Alliance for Research and Technology)en_US
dc.description.sponsorshipMIT Martin Family Society of Fellows for Sustainabilityen_US
dc.language.isoen_US
dc.publisherAmerican Meteorological Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1175/jcli-d-13-00171.1en_US
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.en_US
dc.sourceAMSen_US
dc.titleRegional Climate Modeling over the Maritime Continent. Part II: New Parameterization for Autoconversion of Convective Rainfallen_US
dc.typeArticleen_US
dc.identifier.citationGianotti, Rebecca L., and Elfatih A. B. Eltahir. “Regional Climate Modeling over the Maritime Continent. Part II: New Parameterization for Autoconversion of Convective Rainfall.” J. Climate 27, no. 4 (February 2014): 1504–1523. © 2014 American Meteorological Societyen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Civil and Environmental Engineeringen_US
dc.contributor.departmentParsons Laboratory for Environmental Science and Engineering (Massachusetts Institute of Technology)en_US
dc.contributor.mitauthorGianotti, Rebecca L.en_US
dc.contributor.mitauthorEltahir, Elfatih A. B.en_US
dc.relation.journalJournal of Climateen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsGianotti, Rebecca L.; Eltahir, Elfatih A. B.en_US
mit.licensePUBLISHER_POLICYen_US


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