Bopape, Mary-Jane M2009-09-282009-09-282009-09Bopape, M.M. 2009. Sensitivity of RegCM3 simulations to horizontal resolution. 25th Annual Conference of the South African Society for Atmospheric Sciences. Tulbagh, South Africa, 9–10 September 2009. pp 1-29780620442183http://hdl.handle.net/10204/361825th Annual Conference of the South African Society for Atmospheric Sciences. Tulbagh, South Africa, 9–10 September 2009Dynamic downscaling for climate studies utilises a regional climate model that is nested within a global climate model (GCM) or global reanalyses. The GCM or global reanalyses data is interpolated to the RCM's grid and used to drive the RCM as initial and time-dependent lateral boundary conditions. The basic idea behind regional climate modelling is that a GCM can provide correct large scale circulation in response to global climatic forcing and the RCM can represent sub-GCM grid scale forcings due to complex topography adequately. Most regional climate modelling studies used a 60 km resolution following the initial RCM studies. Regional climate modelling studies over South Africa that have been conducted have used resolutions of 100 km. The aim of this study is to investigate the influence of horizontal resolution on the RegCM3 simulations over Southern Africa. This study is important for determining the best resolution to use with this model for studies over the area of interest with the parameterisation scheme used for this study nested within 2.5 degrees resolution reanalyses.enRegional climate model version 3RegCM3Global climate modelGCMHorizontal resolutionTopographyTemperatureClimate modellingGlobal reanalyses25th Annual Conference of the South African Society for Atmospheric SciencesAtmospheric sciencesConference PresentationBopape, M. M. (2009). Sensitivity of RegCM3 simulations to horizontal resolution. http://hdl.handle.net/10204/3618Bopape, Mary-Jane M. "Sensitivity of RegCM3 simulations to horizontal resolution." (2009): http://hdl.handle.net/10204/3618Bopape MM, Sensitivity of RegCM3 simulations to horizontal resolution; 2009. http://hdl.handle.net/10204/3618 .TY - Conference Presentation AU - Bopape, Mary-Jane M AB - Dynamic downscaling for climate studies utilises a regional climate model that is nested within a global climate model (GCM) or global reanalyses. The GCM or global reanalyses data is interpolated to the RCM's grid and used to drive the RCM as initial and time-dependent lateral boundary conditions. The basic idea behind regional climate modelling is that a GCM can provide correct large scale circulation in response to global climatic forcing and the RCM can represent sub-GCM grid scale forcings due to complex topography adequately. Most regional climate modelling studies used a 60 km resolution following the initial RCM studies. Regional climate modelling studies over South Africa that have been conducted have used resolutions of 100 km. The aim of this study is to investigate the influence of horizontal resolution on the RegCM3 simulations over Southern Africa. This study is important for determining the best resolution to use with this model for studies over the area of interest with the parameterisation scheme used for this study nested within 2.5 degrees resolution reanalyses. DA - 2009-09 DB - ResearchSpace DP - CSIR KW - Regional climate model version 3 KW - RegCM3 KW - Global climate model KW - GCM KW - Horizontal resolution KW - Topography KW - Temperature KW - Climate modelling KW - Global reanalyses KW - 25th Annual Conference of the South African Society for Atmospheric Sciences KW - Atmospheric sciences LK - https://researchspace.csir.co.za PY - 2009 SM - 9780620442183 T1 - Sensitivity of RegCM3 simulations to horizontal resolution TI - Sensitivity of RegCM3 simulations to horizontal resolution UR - http://hdl.handle.net/10204/3618 ER -