The 1958-2009 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation

X. Fettweis; G. Mabille; M. Erpicum; S. Nicolay; M.R. van den Broeke

doi:10.1007/s00382-010-0772-8

The 1958-2009 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation

X. Fettweis, G. Mabille, M. Erpicum, S. Nicolay, M.R. van den Broeke

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Abstract

In order to assess the impact of the mid-tropospheric 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 during the summers of 2007–2009 are linked to the exceptional 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

Original language	English
Pages (from-to)	139-159
Number of pages	21
Journal	Climate Dynamics
Volume	36
DOIs	https://doi.org/10.1007/s00382-010-0772-8
Publication status	Published - 2010

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Cited By (since 1996): 2; Article in Press

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title = "The 1958-2009 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation",

abstract = "In order to assess the impact of the mid-tropospheric 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 during the summers of 2007–2009 are linked to the exceptional 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",

author = "X. Fettweis and G. Mabille and M. Erpicum and S. Nicolay and {van den Broeke}, M.R.",

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AU - Fettweis, X.

AU - Mabille, G.

AU - Erpicum, M.

AU - Nicolay, S.

AU - van den Broeke, M.R.

N1 - Cited By (since 1996): 2; Article in Press

PY - 2010

Y1 - 2010

N2 - In order to assess the impact of the mid-tropospheric 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 during the summers of 2007–2009 are linked to the exceptional 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

AB - In order to assess the impact of the mid-tropospheric 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 during the summers of 2007–2009 are linked to the exceptional 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

U2 - 10.1007/s00382-010-0772-8

DO - 10.1007/s00382-010-0772-8

M3 - Article

SN - 0930-7575

VL - 36

SP - 139

EP - 159

JO - Climate Dynamics

JF - Climate Dynamics

ER -

The 1958-2009 Greenland ice sheet surface melt and the mid-tropospheric atmospheric circulation

Abstract

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