Examining the precipitation associated with medicanes in the high-resolution ERA-5 reanalysis data


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Created: Mar 18, 2021 at 7:05 p.m.
Last updated: Mar 23, 2021 at 7:53 p.m.
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Abstract

Medicanes, hurricane-like cyclonic systems in the Mediterranean Sea, are becoming an increasingly severe problem for many Mediterranean countries because climate projections suggest a higher risk under anthropogenic forcing even under an intermediate scenario. Due to the small size of these weather systems, high-resolution data are required to better resolve their structure and evolution. Here we investigate medicanes from the perspective of precipitation using the high-resolution (0.25) ERA-5 reanalysis data released by European Centre for Medium-Range Weather Forecasts. Overall, we identify a total of 59 medicanes from ERA-5 data during 1979–2017, with marked year-to-year variability. These storms tend to occur mostly between September and March. Overall, the intensity of medicanes (i.e., maximum wind) is lower than that of tropical cyclones, and this is also true for precipitation. The composite precipitation of medicanes increases from the centre to 0.8 and then decreases. During 1979–2017, many regions along the Mediterranean Sea experienced over 20 extreme precipitation events (i.e., days) which were caused by medicanes, accounting for 2–5% of all the extreme precipitation events.

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Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
North Latitude
48.0000°
East Longitude
48.0000°
South Latitude
24.0000°
West Longitude
-10.0000°

Temporal

Start Date:
End Date:

Content

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Related Resources

The content of this resource is derived from ERA-5 reanalysis data released by European Centre for Medium-Range Weather Forecasts (https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era5)
The content of this resource is derived from E-OBS v16.0 (https://www.ecad.eu/download/ensembles/download.php)

Credits

Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation Quantification of the Impacts of Urban Areas on Heavy Rainfall and Flooding from North Atlantic Tropical Cyclones EAR-1840742

Contributors

People or Organizations that contributed technically, materially, financially, or provided general support for the creation of the resource's content but are not considered authors.

Name Organization Address Phone Author Identifiers
Enrico Scoccimarro Fondazione Centro Euro-Mediterraneo sui Cambiamenti Climatici
Francesco Napolitano Department of Civil, Constructional and Environmental Engineering, University of Rome “La Sapienza”,
Wei Zhang University of Iowa
Gabriele Villarini University of Iowa Iowa, US ORCID

How to Cite

Villarini, G., W. Zhang (2021). Examining the precipitation associated with medicanes in the high-resolution ERA-5 reanalysis data, HydroShare, http://www.hydroshare.org/resource/09355faeb7124db083e1650d7656da00

This resource is shared under the Creative Commons Attribution CC BY.

http://creativecommons.org/licenses/by/4.0/
CC-BY

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