Regional climate models are important research tools available to scientists around the world, including in economically developing nations (EDNs). The Earth Systems Physics (ESP) group of the Abdus Salam International Centre for Theoretical Physics (ICTP) maintains and distributes a state-of-the-science regional climate model called the ICTP Regional Climate Model version 3 (RegCM3), which is currently being used by a large research community for a diverse range of climate-related studies. The RegCM3 is the central, but not only, tool of the ICTP-maintained Regional Climate Research Network (RegCNET) aimed at creating south–south and north–south scientific interactions on the topic of climate and associated impacts research and modeling. In this paper, RegCNET, RegCM3, and illustrative results from RegCM3 benchmark simulations applied over south Asia, Africa, and South America are presented. It is shown that RegCM3 performs reasonably well over these regions and is therefore useful for climate studies in EDNs.

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Footnotes

Earth Systems Physics Group, The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy, and Department of Civil Engineering and Environmental Science, Loyola Marymount University, Los Angeles, California

Earth Systems Physics Group, The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy

Earth Systems Physics Group, The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy, and National Climate Center, Beijing, China

National Climate Center, Beijing, China

Philippine Atmospheric Geophysical, and Astronomical Services Administration, Quezon City, Philippines

Department of Air Pollution and Climate Change, Egyptian Meteorological Authority, Cairo, Egypt

Global Change Impact Studies Centre and Pakistan Meteorological Department, Islamabad, Pakistan, and Purdue Climate Change Research Center, and Department of Earth and Atmospheric Sciences, West Lafayette, Indiana

Global Change Impact Studies Centre, and Pakistan Meteorological Department, Islamabad, Pakistan

Department of Earth Sciences, University of California, Santa Cruz, Santa Cruz, California

Purdue Climate Change Research Centre, and Department of Earth and Atmospheric Sciences, West Lafayette, Indiana

Department of Hydrology and Meteorology, Katmandu, Nepal

Groupe Aérosols Pollution Laboratoire de Physique de L'Atmosphére, Université de Cocody, Abidjan, Ivory Coast

Center for Atmospheric Physics, Institute of Meteorology, Havana, Cuba

Instituto de Astronomia, Geofisica e Ciencias Atmosfericas, Universidade de São Paulo, São Paulo, Brazil

Department of Environmental Science, University of California, Berkeley, Berkeley, California