R.: The 1958–2009 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation

! The Author(s) 2010. This article is published with open access at Springerlink.com Abstract In order to assess the impact of the mid-tro-pospheric circulation over the Greenland ice sheet (GrIS) on surface melt, as simulated by the regional climate model MAR, an automatic Circulation type classifi...

Full description

Bibliographic Details
Main Authors: Xavier Fettweis, Georges Mabille, Michel Erpicum, Samuel Nicolay, Michiel Van Den Broeke
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 2010
Subjects:
Greenland
Ice Sheet
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.725.3074
http://www.staff.science.uu.nl/%7Ebroek112/home.php_files/Publications_MvdB/2010_Fettweis_ClimDyn.pdf
Description
Summary:! The Author(s) 2010. This article is published with open access at Springerlink.com Abstract In order to assess the impact of the mid-tro-pospheric circulation over the Greenland ice sheet (GrIS) on surface melt, as simulated by the regional climate model MAR, an automatic Circulation type classification (CTC) based on 500 hPa geopotential height from reanalyses is developed. General circulation correlates significantly with the surface melt anomalies for the summers in the period 1958–2009. The record surface melt events observed dur-ing the summers of 2007–2009 are linked to the excep-tional persistence of atmospheric circulations favouring warm air advection. The CTC emphasizes that summer 500 hPa circulation patterns have changed since the beginning of the 2000s; this process is partly responsible for the recent warming observed over the GrIS.

Similar Items