Climate Dynamics

, Volume 43, Issue 5–6, pp 1183–1195 | Cite as

A long-term climatology of medicanes

  • Leone CavicchiaEmail author
  • Hans von Storch
  • Silvio Gualdi


Medicanes, intense and destructive mesoscale cyclones exhibiting several similarities with tropical hurricanes, are known to struck occasionally the Mediterranean Sea. Thanks to a high-resolution dynamical downscaling effort, we are able to study for the first time the long-term climatology of those rare storms in a systematic way. The distribution of medicanes frequency in space and time is discussed, and the environmental factors responsible for their formation are investigated. We find that medicanes develop in those areas of the Mediterranean region where intrusions of cold air in the upper troposphere can produce configurations of thermodynamical disequilibrium of the atmosphere similar to those associated with the formation of tropical cyclones.


Mediterranean hurricanes Dynamical downscaling Mesoscale tropical-like cyclones Medicanes climatology 



We acknowledge Burkardt Rockel and Beate Geyer for their precious help with the model. We thank Antonio Navarra for many valuable and stimulating discussions. The research leading to these results has received funding from the Italian Ministry of Education, University and Research and the Italian Ministry of Environment, Land and Sea under the GEMINA Project, and from the South East Europe Transnational Cooperation Programme under the ORIENTGATE Project.


  1. Cavicchia L, von Storch H (2012) The simulation of medicanes in a high-resolution regional climate model. Clim Dyn 39:2273–2290CrossRefGoogle Scholar
  2. Chen F, Geyer B, Zahn M, von Storch H (2012) Toward a multi-decadal climatology of North Pacific polar lows employing dynamical downscaling. Terr Atmos Ocean Sci 23:291–301CrossRefGoogle Scholar
  3. Davolio S, Miglietta MM, Moscatello A, Pacifico F, Buzzi A, Rotunno R (2009) Numerical forecast and analysis of a tropical-like cyclone in the Ionian Sea. Nat Hazards Earth Syst Sci 9:551–562CrossRefGoogle Scholar
  4. Emanuel K (2005) Genesis and maintenance of “Mediterranean hurricanes”. Adv Geosci 2:217–220CrossRefGoogle Scholar
  5. Ernst JA, Matson M (1983) A Mediterranean tropical storm. Weather 38:332–337CrossRefGoogle Scholar
  6. Feser F, von Storch H (2008) A dynamical downscaling case study for typhoons in SE Asia using a regional climate model. Mon Weather Rev 136:1806–1815CrossRefGoogle Scholar
  7. Feser F, Rockel B, von Storch H, Winterfeldt J, Zahn M (2011) Regional climate models add value to global model data: a review and selected examples. Bull Am Meteorol Soc 92:1181–1192CrossRefGoogle Scholar
  8. Fita L, Romero R, Luque A, Emanuel K, Ramis C (2007) Analysis of the environments of seven Mediterranean tropical-like storms using an axisymmetric, nonhydrostatic, cloud resolving model. Nat Hazards Earth Syst Sci 7:41–56CrossRefGoogle Scholar
  9. Gil V, Genovés A, Picornell M, Jansà A (2003) Automated database of cyclones from the ECMWF model: preliminary comparison between West and East Mediterranean basins. In: Proceedings of fourth Plinius conference on Mediterranean stormsGoogle Scholar
  10. Hart RE (2003) A cyclone phase space derived from thermal wind and thermal asymmetry. Mon Weather Rev 131:585–616CrossRefGoogle Scholar
  11. Homar V, Romero R, Stensrud DJ, Ramis C, Alonso S (2003) Numerical diagnosis of a small, quasi-tropical cyclone over the western Mediterranean: dynamical vs. boundary factors. Quart J R Meteorol Soc 129:1469–1490CrossRefGoogle Scholar
  12. Lagouvardos K, Kotroni V, Nickovic S, Jovic D, Kallos G, Tremback CJ (1999) Observations and model simulations of a winter sub-synoptic vortex over the central Mediterranean. Meteorol Appl 6:371–383CrossRefGoogle Scholar
  13. Luque A, Fita L, Romero R, Alonso S (2007) Tropical-like Mediterranean storms: an analysis from satellite. In: EUMETSAT 07 proceedingsGoogle Scholar
  14. Miglietta MM, Moscatello A, Conte D, Mannarini G, Lacorata G, Rotunno R (2011) Numerical analysis of a Mediterranean “hurricane” over south-eastern Italy: sensitivity experiments to sea surface temperature. Atmos Res 101:412–426 CrossRefGoogle Scholar
  15. Miglietta MM, Laviola S, Malvaldi A, Conte D, Levizzani V, Price C (2013) Analysis of tropical-like cyclones over the Mediterranean Sea through a combined modelling and satellite approach. Geophys Res Lett 40:2400–2405CrossRefGoogle Scholar
  16. Moscatello A, Miglietta MM, Rotunno R (2008) Numerical analysis of a Mediterranean “hurricane” over south-eastern Italy. Mon Weather Rev 136:4373–4396CrossRefGoogle Scholar
  17. Moscatello A, Miglietta MM, Rotunno R (2008) Observational analysis of a Mediterranean “hurricane” over south-eastern Italy. Weather 63:306–311CrossRefGoogle Scholar
  18. Pytharoulis I, Craig G, Ballard S (2000) The hurricane-like Mediterranean cyclone of January 1995. Meteorol Appl 7:261–279CrossRefGoogle Scholar
  19. Rasmussen E, Zick C (1987) A subsynoptic vortex over the Mediterranean with some resemblance to polar lows. Tellus A 39:408–425CrossRefGoogle Scholar
  20. Reale O, Atlas R (2001) Tropical cyclone-like vortices in the extratropics: observational evidence and synoptic analysis. Weather Forecast 16:7–34CrossRefGoogle Scholar
  21. Rockel B, Will A, Hense A (2008) The regional climate model COSMO-CLM (CCLM). Meteorol Z 17:347–348CrossRefGoogle Scholar
  22. Romero R, Emanuel K (2013) Medicane risk in a changing climate. J Geophys Res 118:5992–6001Google Scholar
  23. von Storch H, Feser F, Barcikowska M (2011) Downscaling tropical cyclones from global re-analysis and scenarios: statistics of multi-decadal variability of TC activity in e Asia. Coastal Engineering Proceedings 1(32):management—17Google Scholar
  24. Tous M, Romero R (2013) Meteorological environments associated with medicane development. Int J Climatol 33:1–14CrossRefGoogle Scholar
  25. Tous M, Romero R, Ramis C (2012) Surface heat fluxes influence on medicane trajectories and intensication. Atmos Res 123:400–411CrossRefGoogle Scholar
  26. Trigo I, Davies T, Bigg G (1999) Objective climatology of cyclones in the Mediterranean region. J Clim 12:1685–1696CrossRefGoogle Scholar
  27. Trigo IF, Davies TD, Bigg GR (1999) Objective climatology of cyclones in the Mediterranean region. J Clim 12:1685–1696CrossRefGoogle Scholar
  28. von Storch H, Langenberg H, Feser F (2000) A spectral nudging technique for dynamical downscaling purposes. Mon Weather Rev 128:3664–3673CrossRefGoogle Scholar
  29. Walsh K (1997) Objective detection of tropical cyclones in high-resolution analyses. Mon Weather Rev 125:1767–1779CrossRefGoogle Scholar
  30. Walsh K, Giorgi F, Coppola E (2013) Mediterranean warm-core cyclones in a warmer world. Clim Dyn 1–14. doi: 10.1007/s00382-013-1723-y
  31. Walsh KJE, Fiorino M, Landsea CW, McInnes KL (2007) Objectively determined resolution-dependent threshold criteria for the detection of tropical cyclones in climate models and reanalyses. J Clim 20:2307–2314CrossRefGoogle Scholar
  32. Zahn M, von Storch H (2010) Decreased frequency of North Atlantic polar lows associated with future climate warming. Nature 467:309–312CrossRefGoogle Scholar
  33. Zahn M, von Storch H (2008) Tracking polar lows in CLM. Meteorol Z 17:445–453CrossRefGoogle Scholar
  34. Zahn M, von Storch H, Bakan S (2008) Climate mode simulation of North Atlantic polar lows in a limited area model. Tellus A 60:620–631CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Leone Cavicchia
    • 1
    • 2
    Email author
  • Hans von Storch
    • 2
    • 4
  • Silvio Gualdi
    • 1
    • 3
  1. 1.Centro Euro-Mediterraneo sui Cambiamenti ClimaticiBolognaItaly
  2. 2.Institute of Coastal ResearchHelmholtz-Zentrum GeesthachtGeesthachtGermany
  3. 3.Istituto Nazionale di Geofisica e VulcanologiaBolognaItaly
  4. 4.Meteorological InstituteUniversity of HamburgHamburgGermany

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