Identification of Antarctic ablation areas using a regional atmospheric climate

M.R. van den Broeke; W.J. van de Berg; E. van Meijgaard; C.H. Reijmer

Identification of Antarctic ablation areas using a regional atmospheric climate

M.R. van den Broeke, W.J. van de Berg, E. van Meijgaard, C.H. Reijmer

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Research output: Contribution to journal › Article › Academic › peer-review

Abstract

The occurrence of Antarctic ablation areas in Dronning Maud Land, the Lambert Glacier Basin, Victoria Land, the Transantarctic Mountains and the Antarctic Peninsula is realistically predicted by the regional atmospheric climate model RACMO2/ANT, with snowdrift-related processes calculated offline. Antarctic ablation areas are characterized by a low solid precipitation flux in combination with strong sublimation, snowdrift erosion and/or melt. The strong interaction between atmospheric circulation and topography plays a decisive role in the precipitation distribution and hence that of ablation areas. Three types of Antarctic ablation areas can be distinguished, all occurring in dry regions: Type 1 is the erosion-driven ablation area, caused by 1-D and/or 2-D divergence in the katabatic wind field at high elevations (2000–3200 m asl). Type 2 is the sublimation-driven ablation area. This type occurs at lower elevations (

Original language	Undefined/Unknown
Pages (from-to)	D18110/1-D18110/14
Number of pages	14
Journal	Journal of Geophysical Research: Atmospheres
Volume	111
Publication status	Published - 2006

Bibliographical note

Samen met ca. 40 andere auteurs

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title = "Identification of Antarctic ablation areas using a regional atmospheric climate",

abstract = "The occurrence of Antarctic ablation areas in Dronning Maud Land, the Lambert Glacier Basin, Victoria Land, the Transantarctic Mountains and the Antarctic Peninsula is realistically predicted by the regional atmospheric climate model RACMO2/ANT, with snowdrift-related processes calculated offline. Antarctic ablation areas are characterized by a low solid precipitation flux in combination with strong sublimation, snowdrift erosion and/or melt. The strong interaction between atmospheric circulation and topography plays a decisive role in the precipitation distribution and hence that of ablation areas. Three types of Antarctic ablation areas can be distinguished, all occurring in dry regions: Type 1 is the erosion-driven ablation area, caused by 1-D and/or 2-D divergence in the katabatic wind field at high elevations (2000–3200 m asl). Type 2 is the sublimation-driven ablation area. This type occurs at lower elevations (",

author = "{van den Broeke}, M.R. and {van de Berg}, W.J. and {van Meijgaard}, E. and C.H. Reijmer",

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year = "2006",

language = "Undefined/Unknown",

volume = "111",

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journal = "Journal of Geophysical Research: Atmospheres",

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AU - van den Broeke, M.R.

AU - van de Berg, W.J.

AU - van Meijgaard, E.

AU - Reijmer, C.H.

N1 - Samen met ca. 40 andere auteurs

PY - 2006

Y1 - 2006

N2 - The occurrence of Antarctic ablation areas in Dronning Maud Land, the Lambert Glacier Basin, Victoria Land, the Transantarctic Mountains and the Antarctic Peninsula is realistically predicted by the regional atmospheric climate model RACMO2/ANT, with snowdrift-related processes calculated offline. Antarctic ablation areas are characterized by a low solid precipitation flux in combination with strong sublimation, snowdrift erosion and/or melt. The strong interaction between atmospheric circulation and topography plays a decisive role in the precipitation distribution and hence that of ablation areas. Three types of Antarctic ablation areas can be distinguished, all occurring in dry regions: Type 1 is the erosion-driven ablation area, caused by 1-D and/or 2-D divergence in the katabatic wind field at high elevations (2000–3200 m asl). Type 2 is the sublimation-driven ablation area. This type occurs at lower elevations (

AB - The occurrence of Antarctic ablation areas in Dronning Maud Land, the Lambert Glacier Basin, Victoria Land, the Transantarctic Mountains and the Antarctic Peninsula is realistically predicted by the regional atmospheric climate model RACMO2/ANT, with snowdrift-related processes calculated offline. Antarctic ablation areas are characterized by a low solid precipitation flux in combination with strong sublimation, snowdrift erosion and/or melt. The strong interaction between atmospheric circulation and topography plays a decisive role in the precipitation distribution and hence that of ablation areas. Three types of Antarctic ablation areas can be distinguished, all occurring in dry regions: Type 1 is the erosion-driven ablation area, caused by 1-D and/or 2-D divergence in the katabatic wind field at high elevations (2000–3200 m asl). Type 2 is the sublimation-driven ablation area. This type occurs at lower elevations (

M3 - Article

SN - 2169-897X

VL - 111

SP - D18110/1-D18110/14

JO - Journal of Geophysical Research: Atmospheres

JF - Journal of Geophysical Research: Atmospheres

ER -