Performance of regional climate models in simulating rainy seasons in West Africa
- 1Climate Service Center Germany (GERICS), Helmholtz-Zentrum Hereon, Hamburg, Germany (torsten.weber@hereon.de)
- 2Department of Meteorology and Climate Science, Federal University of Technology Akure, Nigeria
- 3Institute of Geography and Geology, University of Wuerzburg, Germany
- 4AGRHYMET Regional Center, Niamey, Niger
Agriculture in West Africa is highly dependent on rainfall during the rainy seasons. Therefore, modifications in rainy season characteristics due to recent and future climate change have a direct impact on crop yields and production in the region. Consequently, stakeholders and decision-makers need reliable regional climate change information on rainy seasons in order to develop appropriate adaptation measures.
Regional Climate Models (RCMs) can provide information on climate change at high temporal and spatial resolution through dynamic downscaling of climate projections generated by Earth System Models (ESMs). In order to assess the performance of RCMs in simulating rainy seasons and their characteristics such as onset and cessation, length and total sum of rainfall, a thorough evaluation of RCMs is required.
The current study evaluates the performance of three different RCMs (REMO2015, RegCM4-7 and CCLM5-0-15) in simulating rainy seasons in West Africa using gridded observational data sets. For the assessment, we will use the ERA-INTERIM driven simulations of the RCMs from the Coordinated Output for Regional Evaluations (CORE) embedded in the WCRP Coordinated Regional Climate Downscaling Experiment (CORDEX) for Africa with a spatial resolution of about 25 km.
How to cite: Weber, T., Ajayi, V. O., Gbode, I. E., Abel, D., Ziegler, K., Paeth, H., and Traore, S. B.: Performance of regional climate models in simulating rainy seasons in West Africa, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-5834, https://doi.org/10.5194/egusphere-egu22-5834, 2022.
