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

Show simple item record Engelbrecht, Christien J. Landman, W.A. (Willem Adolf), 1964- Engelbrecht, F.A. (Francois Alwyn) Landman, Stephanie Bopape, M.M. (Mary-Jane Morongwa) Roux, Belinda McGregor, J.L. Thatcher, M. 2012-02-07T11:25:53Z 2012-02-07T11:25:53Z 2011-12
dc.description This paper was originally presented at the Water Research Commission 40-Year Celebration Conference, Kempton Park, 31 August - 1 September 2011. en_US
dc.description.abstract Evidence 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.librarian nf2012 en
dc.description.sponsorship The 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.uri en_US
dc.identifier.citation Engelbrecht, 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.issn 0378-4738 (print)
dc.identifier.issn 1816-7950 (online)
dc.identifier.other 10.4314/wsa.v37i5.2
dc.language.iso en en_US
dc.publisher Water Research Council en_US
dc.rights Water Research Council en
dc.subject Variable-resolution atmospheric model en
dc.subject.lcsh Climatology -- Computer simulation en
dc.subject.lcsh Multiscale modeling -- Africa, Southern en
dc.subject.lcsh Atmospheric models -- Africa, Southern en
dc.subject.lcsh Climatic changes -- Africa, Southern -- Simulation methods en
dc.title Multi-scale climate modelling over Southern Africa using a variable-resolution global model en
dc.type Article en

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