EGU General Assembly 2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.

Analyses of Heatwaves in Observational and Modelled Data for Africa

Katrin Ziegler1, Daniel Abel1, Torsten Weber2, Lorenz König3, and Heiko Paeth1
Katrin Ziegler et al.
  • 1Institute of Geography and Geology, University of Wuerzburg, 97074 Wuerzburg, Germany (
  • 2Climate Service Center Germany (GERICS), Helmholtz-Zentrum Hereon, 20095 Hamburg, Germany
  • 3Institute of Earth Science and Geography, University of Halle, 06099 Halle, Germany

The WASCAL WRAP2.0 project LANDSURF aims to calculate and compare different climatological and agrometeorological indices to support stakeholders and farmers in adapting to climate change and its impact in Africa.

This study, which was conducted in the framework of LANDSURF, focuses on the number and duration of heatwaves as rising temperature and resulting heat were found to limit crop yield and thus lower food security in different African regions. We calculated the heat wave duration index (HWDI) for reanalysis data, three regional climate models (RCMs) (REMO2015, RegCM4-7, and CCLM5-0-15) from CORDEX CORE, and their respective forcing data to validate the models over a historical climatological period (1981-2010) and investigate the change of the HWDI for three climatologies of the near-, mid-, and long-term future until 2100 using the two Representative Concentration Pathways (RCPs) 2.6 and 8.5.

How to cite: Ziegler, K., Abel, D., Weber, T., König, L., and Paeth, H.: Analyses of Heatwaves in Observational and Modelled Data for Africa, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-1312,, 2023.