Chauke et al. (2025) Monthly Scale Validation of Climate Models’ Outputs Against Gridded Data over South Africa

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: Atmosphere
• Year: 2025
• Date: 2025-10-17
• Authors: Helga Chauke, Rita Pongrácz
• DOI: 10.3390/atmos16101200

Research Groups

Not specified in the provided text.

Short Summary

This study evaluates the performance of multiple global and regional climate models (CMIP5, CMIP6, CORDEX) against observational data for monthly temperature and precipitation over South Africa, revealing improved simulation outputs in CMIP6 and CORDEX compared to CMIP5.

Objective

• To evaluate the performance of multiple global climate model simulations from CMIP5 and CMIP6, and downscaled regional climate model simulations from CORDEX, against gridded observational data for monthly temperature and precipitation patterns over South Africa during the historic period 1981–2000.

Study Configuration

• Spatial Scale: South Africa
• Temporal Scale: 1981–2000 (20 years)

Methodology and Data

• Models used: Coupled Model Intercomparison Project Phase 5 (CMIP5), Coupled Model Intercomparison Project Phase 6 (CMIP6), Coordinated Regional Climate Downscaling Experiment (CORDEX)
• Data sources: Climatic Research Unit (CRU) gridded observational data

Main Results

• CMIP6 and CORDEX model simulation outputs demonstrate improved performance compared to their CMIP5 predecessors for monthly temperature and precipitation over South Africa.
• This improvement is characterized by reduced biases and enhanced correlation with observational data.

Contributions

• Provides a comparative assessment of the latest generation of climate models (CMIP6, CORDEX) against previous generations (CMIP5) for regional climate analysis in South Africa.
• Underscores the importance of appropriate model selection for accurate regional climate analysis.
• Highlights the ongoing necessity for further climate model development to better capture complex physical processes.

Funding

Not specified in the provided text.

Citation

@article{Chauke2025Monthly,
  author = {Chauke, Helga and Pongrácz, Rita},
  title = {Monthly Scale Validation of Climate Models’ Outputs Against Gridded Data over South Africa},
  journal = {Atmosphere},
  year = {2025},
  doi = {10.3390/atmos16101200},
  url = {https://doi.org/10.3390/atmos16101200}
}