Evaluation of convection-permitting extreme precipitation simulations for the south of France - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Earth System Dynamics Année : 2022

Evaluation of convection-permitting extreme precipitation simulations for the south of France

Résumé

In the autumn, the French Mediterranean area is frequently exposed to heavy precipitation events whose daily accumulation can exceed 300 mm. One of the key processes contributing to these precipitation amounts is deep convection, which can be explicitly resolved by state-of-the-art convection-permitting models to reproduce heavy rainfall events that are comparable to observations. This approach has been tested and performed at climate scale in several studies in recent decades for different areas. In this research, we investigate the added value of using an ensemble of three climate simulations at convection-permitting resolution (approx. 3 km) to replicate extreme precipitation events at both daily and shorter timescales over the south of France. These three convection-permitting simulations are performed with the Weather Research and Forecasting (WRF) Model. They are forced by three EURO-CORDEX simulations, which are also run with WRF at the resolution of 0.11 • (approx. 12 km). We found that a convection-permitting approach provides a more realistic representation of extreme daily and 3-hourly rainfall in comparison with EURO-CORDEX simulations. Their similarity to observations allows use for climate change studies and its impacts.
Fichier principal
Vignette du fichier
esd-13-687-2022.pdf (10.98 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

hal-03657392 , version 1 (03-05-2022)

Licence

Identifiants

Citer

Linh Luu, Robert Vautard, Pascal Yiou, Jean-Michel Soubeyroux. Evaluation of convection-permitting extreme precipitation simulations for the south of France. Earth System Dynamics, 2022, 13 (1), pp.687 - 702. ⟨10.5194/esd-13-687-2022⟩. ⟨hal-03657392⟩
18 Consultations
17 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More