Greenland Ice Sheet Elevation Change in Winter and Influence of Atmospheric Teleconnections in the Northern Hemisphere  

作　　者：CHEN Lin-Ling Ola M. JOHANNESSEN Kirill KHVOROSTOVSKY WANG Hui-Jun 

机构地区：[1]Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029, China [2]Climate Change Research Center, Institute of A tmospherie Physics, Chinese Academy of Sciences, Beijing 100029, China [3]Nansen Environmental and Remote Sensing Center, Bergen 5006, Norway [4]Nansen Scientific Society, Bergen 5006, Norway

出　　处：《Atmospheric and Oceanic Science Letters》2009年第6期376-380,共5页大气和海洋科学快报（英文版）

基　　金：supported by the Knowledge Innovation Program of the Chinese Academy of Sciences (Grant No. KZCX2-YW-Q1-02);the National Basic Research Program of China (973 Program, Grant No. 2009CB421406) and the Nansen Scientific Society in Norway

摘　　要：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.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.

关 键 词：Greenland ice sheet North Pacific Oscillation North Atlantic Oscillation atmospheric teleconnection patterns 

分 类 号：P434.4[天文地球—大气科学及气象学] P343.63