Hydrometeorological evaluation of two nowcasting  systems for Mediterranean heavy precipitation  events with operational considerations

Lovat, Alexane; Vincendon, Béatrice; Ducrocq, Véronique

doi:https://doi.org/10.5194/hess-26-2697-2022

Articles | Volume 26, issue 10

https://doi.org/10.5194/hess-26-2697-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue:

Hydrological cycle in the Mediterranean (ACP/AMT/GMD/HESS/NHESS/OS...

https://doi.org/10.5194/hess-26-2697-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 10

Research article

|

23 May 2022

Research article |

| 23 May 2022

Hydrometeorological evaluation of two nowcasting systems for Mediterranean heavy precipitation events with operational considerations

Alexane Lovat, Béatrice Vincendon, and Véronique Ducrocq

Data sets

SRTM 90 m Digital Elevation Database v4.1 CGIAR CSI https://cgiarcsi.community/data/srtm-90m-digital-elevation-database-v4-1

Short summary

The hydrometeorological skills of two new nowcasting systems for forecasting Mediterranean intense rainfall events and floods are investigated. The results reveal that up to 75 or 90 min of forecast the performance of the nowcasting system blending numerical weather prediction and extrapolation of radar estimation is higher than the numerical weather model. For lead times up to 3 h the skills are equivalent in general. Using these nowcasting systems for flash flood forecasting is also promising.