JP1.13
Numerical simulations of cyclone interaction with the orography of Greenland
Rebekah Martin, University of Toronto, Toronto, ON, Canada; and G. W. K. Moore
The topography of Greenland is very striking in that as a plateau that is over 3 km high at some points. As such it presents a very significant barrier to atmospheric flow in the North Atlantic. Not coincidentally, the Icelandic Low sits off of the eastern side of the island, and provides a steering mechanism for storms moving off the coast of Newfoundland and Labrador across the North Atlantic. Deep synoptic scale cyclones can often be seen to actually impinge on the southern tip of Greenland, known as Cape Farewell. Subsequently, high wind speed events downstream of Cape Farewell over the Irminger Sea, known as tip jets, often occur. Some of these events have been simulated with the Penn State – NCAR Mesoscale Model version 5 (MM5) and the mesoscale structure of the high wind speed events has been examined. These simulations will be presented along with an investigation of the formation of the tip jet, and its fine structure.
Joint Poster Session 1, Formal Poster Viewing - Polar Coastal Processes (Joint with Sixth Conference on Coastal Atmospheric and Oceanic Prediction and Processes and the 8th Conf on Polar Meteorology and Oceanography)
Monday, 10 January 2005, 2:30 PM-4:00 PM
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