Advances towards the development of a cloud-resolving model in South Africa

dc.contributor.authorBopape, Mary-Jane Morongwa
dc.contributor.authorEngelbrecht, Francois Alwyn
dc.contributor.authorRandall, David A.
dc.contributor.authorLandman, Willem Adolf
dc.date.accessioned2014-10-21T12:45:07Z
dc.date.available2014-10-21T12:45:07Z
dc.date.issued2014-09
dc.description.abstractRecent advances in supercomputing have made feasible the numerical integration of high-resolution cloud-resolving models (CRMs). CRMs are being used increasingly for high-resolution operational numerical weather prediction and for research purposes. We report on the development of a new CRM in South Africa. Two bulk microphysics parameterisation schemes were introduced to a dynamical core of a two-dimensional Non-hydrostatic σ-coordinate Model (NSM) developed in South Africa. The resulting CRM was used to simulate two 12-day periods and an 8-day period observed during the Tropical Oceans Global Atmosphere Coupled Ocean-Atmosphere Response Experiment. The response of the NSM to the large-scale forcing which occurred over the three periods, and which included both suppressed and active convection, was examined. The NSM is shown to be able to capture the differences in the three experiments and responds correctly to the large-scale forcing (i.e. it is able to distinguish between suppressed and active regimes). However, the model simulations are cooler and drier than the observations. We demonstrate progress made in the development of a CRM in South Africa, which can be used to study the attributes of convective rainfall over the region.en_US
dc.description.librarianam2014en_US
dc.description.sponsorshipThe CSIR is acknowledged for funding this work through a parliamentary grant and Young Researcher Establishment Funds.en_US
dc.description.urihttp://www.sajs.co.za/en_US
dc.identifier.citationBopape MM, Engelbrecht FA, Randall DA, Landman WA. Advances towards the development of a cloud-resolving model in South Africa. S Afr J Sci. 2014;110(9/10), Art. #2013-0133, 12 pages. http://dx.DOI.org/ 10.1590/sajs.2014/20130133.en_US
dc.identifier.issn0038-2353 (print)
dc.identifier.issn2078-5151 (online)
dc.identifier.other10.1590/sajs.2014/20130133
dc.identifier.urihttp://hdl.handle.net/2263/42416
dc.language.isoenen_US
dc.publisherAOSISen_US
dc.rights© 2014. The Authors. Published under a Creative Commons Attribution Licence.en_US
dc.subjectAtmospheric modellingen_US
dc.subjectThunderstormsen_US
dc.subjectTOGA COAREen_US
dc.subjectMicrophysics schemesen_US
dc.subjectCloudresolving models (CRMs)en_US
dc.titleAdvances towards the development of a cloud-resolving model in South Africaen_US
dc.typeArticleen_US

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