Sea-ice mass-balance monitoring in an Arctic fjord

Authors: Gerland, Sebastian; Renner, Angelika H.H.

Source: Annals of Glaciology, Volume 46, Number 1, October 2007 , pp. 435-442(8)

Publisher: International Glaciological Society

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Abstract:

A sea-ice mass-balance monitoring study including ice extent and thickness observations was started at Kongsfjorden (79° N, 12° E), Svalbard, in 2003. The inner part of Kongsfjorden is usually covered by seasonal fast ice <1 m thick, initially forming between December and March and persisting until June. Ice extent is visually observed from the mountain Zeppelinfjellet, and documented by ice maps and photographs several times a week. Ice and snow thickness is measured regularly at four sites from drillholes. Time series of ice extent in four areas east of Ny-A˚lesund (total area 120 km²) were calculated for 2003-05. By combining extent with thickness data, ice-mass time series were calculated. As also observed earlier than 2003 in other studies, the fast ice varies interannually in extent and thickness. Among the factors which control the fast-ice evolution are physical and meteorological parameters, and the geographical setting of Kongsfjorden, with its coastline and a group of islands in its inner part having a protective effect. This study is ongoing and a major aim is to identify and quantify connections between the Kongsfjorden fast-ice evolution and climate parameters.

Document Type: Research article

DOI: http://dx.doi.org/10.3189/172756407782871215

Publication date: 2007-10-01

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The Annals of Glaciology is a peer-reviewed, thematic journal published 2 to 4 times a year by the International Glaciological Society (IGS). Publication frequency is determined and volume/issue numbers assigned by the IGS Council on a year-to-year basis and with a lead time of 3 to 4 years. The Annals of Glaciology is included in the ISI Science Citation Index from volume 50, number 50 onwards.
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Sea-ice mass-balance monitoring in an Arctic fjord

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