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| Greenland Ice Sheet Elevation Change in Winter and Influence of Atmospheric Teleconnections in the Northern Hemisphere |
| CHEN Lin-Ling,Ola M. JOHANNESSEN,Kirill KHVOROSTOVSKY,WANG Hui-Jun |
| Institute of Atmospheric Physics, Chinese Academy of Sciences,Nansen Environmental and Remote Sensing Center,Nansen Environmental and Remote Sensing Center,Institute of Atmospheric Physics, Chinese Academy of Sciences |
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Abstract The relationship between the variability of the surface elevation of the Greenland Ice Sheet (GIS) in winter and sea level pressure is identified through analysis of data from satellite-borne radar altimeters, together with meteorological data fields during 1993-2005. We found that both the North Pacific Oscillation (NPO) and the North Atlantic Oscillation (NAO), the two major teleconnection patterns of the atmospheric surface pressure fields in the Northern Hemisphere, significantly influence the GIS winter elevation change. Further, it is suggested that the NPO may affect the GIS accumulation by influencing the NAO, particularly by changing the intensity and location of the Icelandic Low.
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Received: 18 September 2009
Revised: 12 November 2009
Accepted: 13 November 2009
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