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AGU: Geophysical Research Letters

 

Keywords

  • Arctic Ocean
  • Atlantic Ocean
  • sea ice
  • tropical cyclones

Index Terms

  • 0750 - Sea ice
  • 1223 - Ocean/Earth/atmosphere/hydrosphere/cryosphere interactions
  • 3372 - Tropical cyclones

Paper in Press

GEOPHYSICAL RESEARCH LETTERS, doi:10.1029/2012GL052987

Tropical cyclone effects on Arctic Sea ice variability

Key Points
  • Atlantic Hurricanes composite effect links the Tropics to the Arctic basin.
  • Hurricane induced anomalies in sea level pressure impact the Arctic circulation.
  • A correlation between Atl TC activity and sea ice cover and motion is found.

Authors:

Enrico Scoccimarro

Silvio Gualdi

Antonio Navarra

In recent years increasing interest has been put on the role that intense Tropical Cyclones can play in the climate system. The following study is aimed at highlighting the effects of strong Tropical Cyclones over the Tropical Atlantic on the mean climate. Their composite effect on the surface winds is made apparent by a wide cyclonic perturbation that affects a large portion of the Atlantic tropical Ocean. Teleconnection patterns, which are visible in the Sea Level Pressure anomalies associated with this Tropical Composite Cyclone, appear to link the activity of the hurricanes to the Arctic Ocean. A significant negative correlation between the energy dissipated by hurricanes in the Tropical atmosphere and the sea ice cover along the Transpolar Drift Stream path, has also been found.

Received 2 July 2012; accepted 1 August 2012.

Citation: Scoccimarro, E., S. Gualdi, and A. Navarra (2012), Tropical cyclone effects on Arctic Sea ice variability, Geophys. Res. Lett., doi:10.1029/2012GL052987, in press.