DOI: 10.1029/2012JD018342
论文题名: A decade of energy and mass balance investigations on the glacier Kongsvegen, Svalbard
作者: Karner F. ; Obleitner F. ; Krismer T. ; Kohler J. ; Greuell W.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 10 起始页码: 3986
结束页码: 4000
语种: 英语
英文关键词: Kongsvegen
; SOMARS
; superimposed ice
; surface energy balance
; surface mass balance
; Svalbard
Scopus关键词: Heat flux
; Interfacial energy
; Kongsvegen
; SOMARS
; Superimposed ice
; Surface mass balance
; Svalbard
; Energy balance
; energy
; energy balance
; equilibrium line
; glacier
; glacier mass balance
; latent heat flux
; net radiation
; Arctic
; Kongsvegen Glacier
; Spitsbergen
; Svalbard
; Svalbard and Jan Mayen
英文摘要: Kongsvegen is an Arctic glacier located in northwest Spitzbergen. We use meteorological observations made near the average equilibrium line of Kongsvegen during the decade 2001 to 2010 to drive a glacier energy and mass balance model. Average daily and seasonal cycles are analyzed over the course of a full decade, as well as the interannual variations of the meteorological parameters and of the mass and energy balance components. The calculated average of net radiation is close to zero and the sensible heat flux is the most important and continuous source of energy at the surface. The latent heat flux is a weak source of energy as well. The resultant flux constellation yields a surplus of energy accumulating throughout the decade (9.5 W m-2) and fosters a negative specific surface mass balance throughout the investigated decade (-1.8 m w. eq.). The most significant mass loss occurred during the middle of the decade (2004 until 2006), with positive surface mass balances observed afterward when significant amounts of superimposed ice were formed. This development is well correlated to the total surface mass balance of the glacier. Application of monthly temperature and precipitation perturbations corroborates earlier studies indicating a high sensitivity of the mass balance to energy fluxes depending on temperature conditions during summer. Key PointsEvaluation of a decadal meteorological record of an Arctic glacierUse of SOMARS, validation of results, investigations of climate sensitiviyAnnual, monthly, daily consideration ©2012. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/63726
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Institute of Meteorology and Geophysics, Innsbruck University, Austria; Max Planck Institute for Meteorology, Hamburg, Germany; Norwegian Polar Institute, Troms, Norway; KNMI, De Bilt, Netherlands
Recommended Citation:
Karner F.,Obleitner F.,Krismer T.,et al. A decade of energy and mass balance investigations on the glacier Kongsvegen, Svalbard[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(10)