Multi-scale climate modelling over Southern Africa using a variable-resolution global model

dc.contributor.authorEngelbrecht, Christina Johanna
dc.contributor.authorLandman, Willem Adolf
dc.contributor.authorEngelbrecht, Francois Alwyn
dc.contributor.authorLandman, Stephanie
dc.contributor.authorBopape, Mary-Jane Morongwa
dc.contributor.authorRoux, Belinda
dc.contributor.authorMcGregor, J.L.
dc.contributor.authorThatcher, M.
dc.date.accessioned2012-02-07T11:25:53Z
dc.date.available2012-02-07T11:25:53Z
dc.date.issued2011-12
dc.descriptionThis paper was originally presented at the Water Research Commission 40-Year Celebration Conference, Kempton Park, 31 August - 1 September 2011.en_US
dc.description.abstractEvidence is provided of the successful application of a single atmospheric model code at time scales ranging from short-range weather forecasting through to projections of future climate change, and at spatial scales that vary from relatively low-resolution global simulations, to ultra-high resolution simulations at the micro-scale. The model used for these experiments is a variable-resolution global atmospheric model, the conformal-cubic atmospheric model (CCAM). It is shown that CCAM may be used to obtain plausible projections of future climate change, as well as skilful forecasts at the seasonal and short-range time scales, over the Southern African region. The model is additionally applied for extended simulations of present-day climate at spatial scales ranging from global simulations at relatively low horizontal resolution, to the micro-scale at ultra-high (1 km) resolution. Applying the atmospheric model at the shorter time scales provides the opportunity to test its physical parameterisation schemes and its response to fundamental forcing mechanisms (e.g. ENSO). The existing skill levels at the shorter time scales enhance the confidence in the model projections of future climate change, whilst the related verification studies indicate opportunities for future model improvement.en
dc.description.librariannf2012en
dc.description.sponsorshipThe WRC has funded, and currently still funds, a number of projects in which CCAM is applied over Southern Africa. A CSIR Parliamentary Grant, as well as the European Commission by means of the FP7 collaborative project “Climate Change and Urban Vulnerability in Africa (CLUVA)”, contract no. 265137, have provided funding to CSIR to perform the new set of projections of future climate change over Africa. The Wine Industry Network of Expertise and Technology (Winetech) has provided funding to the ARC for the ultra-high resolution simulations described in the paper.en_US
dc.description.urihttp://www.wrc.org.zaen_US
dc.identifier.citationEngelbrecht, FA, Landman, WA, Engelbrecht, CJ, Landman, S, Bopape, MM, Roux, B, McGregor, JL & Thatcher, M 2011, 'Multi-scale climate modelling over Southern Africa using a variable-resolution global model', Water SA, vol. 37, no. 5, pp. 647-658.en
dc.identifier.issn0378-4738 (print)
dc.identifier.issn1816-7950 (online)
dc.identifier.other10.4314/wsa.v37i5.2
dc.identifier.urihttp://hdl.handle.net/2263/18040
dc.language.isoenen_US
dc.publisherWater Research Councilen_US
dc.rightsWater Research Councilen
dc.subjectVariable-resolution atmospheric modelen
dc.subject.lcshClimatology -- Computer simulationen
dc.subject.lcshMultiscale modeling -- Africa, Southernen
dc.subject.lcshAtmospheric models -- Africa, Southernen
dc.subject.lcshClimatic changes -- Africa, Southern -- Simulation methodsen
dc.titleMulti-scale climate modelling over Southern Africa using a variable-resolution global modelen
dc.typeArticleen

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