Estimating response times of Vadret da Morteratsch, Vadret da Palue, Briksdalsbreen and Nigardsbreen from their length records
Length records of two pairs of glaciers are used to reconstruct the equilibrium-line altitude (ELA) and to estimate glacier response times. The method is based on the assumption that neighbouring glaciers should be subject to the same climatic forcing, and that differences in the length records are...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/41066 2023-07-23T04:19:24+02:00 Estimating response times of Vadret da Morteratsch, Vadret da Palue, Briksdalsbreen and Nigardsbreen from their length records Oerlemans, J. Marine and Atmospheric Research Sub Dynamics Meteorology 2007 image/pdf https://dspace.library.uu.nl/handle/1874/41066 other unknown 0022-1430 https://dspace.library.uu.nl/handle/1874/41066 info:eu-repo/semantics/OpenAccess Article 2007 ftunivutrecht 2023-07-01T23:40:56Z Length records of two pairs of glaciers are used to reconstruct the equilibrium-line altitude (ELA) and to estimate glacier response times. The method is based on the assumption that neighbouring glaciers should be subject to the same climatic forcing, and that differences in the length records are thus caused by differences in response times and climate sensitivities. By means of a control method, in which the difference between the reconstructed histories of the ELA is minimized, realistic response times are found. The pairs of glaciers studied are: (i) Vadret da Morteratsch and Vadret da Palu¨ in the Swiss Alps and (ii) Briksdalsbreen and Nigardsbreen in southern Norway. In both cases the reconstructed ELA histories of the individual glaciers are very similar, in spite of the large differences in the length records. Short e-folding response times are found for the steep glaciers: 4.4 years for Vadret da Palii, 5.0 years for Briksdalsbreen. For the larger glaciers with a more gentle slope the response times are substantially larger: 33.0 years for Vadret da Morteratsch, 34.8 years for Nigardsbreen. Article in Journal/Newspaper glacier Utrecht University Repository Ela ENVELOPE(9.642,9.642,63.170,63.170) Norway |
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Open Polar |
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Utrecht University Repository |
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ftunivutrecht |
language |
unknown |
description |
Length records of two pairs of glaciers are used to reconstruct the equilibrium-line altitude (ELA) and to estimate glacier response times. The method is based on the assumption that neighbouring glaciers should be subject to the same climatic forcing, and that differences in the length records are thus caused by differences in response times and climate sensitivities. By means of a control method, in which the difference between the reconstructed histories of the ELA is minimized, realistic response times are found. The pairs of glaciers studied are: (i) Vadret da Morteratsch and Vadret da Palu¨ in the Swiss Alps and (ii) Briksdalsbreen and Nigardsbreen in southern Norway. In both cases the reconstructed ELA histories of the individual glaciers are very similar, in spite of the large differences in the length records. Short e-folding response times are found for the steep glaciers: 4.4 years for Vadret da Palii, 5.0 years for Briksdalsbreen. For the larger glaciers with a more gentle slope the response times are substantially larger: 33.0 years for Vadret da Morteratsch, 34.8 years for Nigardsbreen. |
author2 |
Marine and Atmospheric Research Sub Dynamics Meteorology |
format |
Article in Journal/Newspaper |
author |
Oerlemans, J. |
spellingShingle |
Oerlemans, J. Estimating response times of Vadret da Morteratsch, Vadret da Palue, Briksdalsbreen and Nigardsbreen from their length records |
author_facet |
Oerlemans, J. |
author_sort |
Oerlemans, J. |
title |
Estimating response times of Vadret da Morteratsch, Vadret da Palue, Briksdalsbreen and Nigardsbreen from their length records |
title_short |
Estimating response times of Vadret da Morteratsch, Vadret da Palue, Briksdalsbreen and Nigardsbreen from their length records |
title_full |
Estimating response times of Vadret da Morteratsch, Vadret da Palue, Briksdalsbreen and Nigardsbreen from their length records |
title_fullStr |
Estimating response times of Vadret da Morteratsch, Vadret da Palue, Briksdalsbreen and Nigardsbreen from their length records |
title_full_unstemmed |
Estimating response times of Vadret da Morteratsch, Vadret da Palue, Briksdalsbreen and Nigardsbreen from their length records |
title_sort |
estimating response times of vadret da morteratsch, vadret da palue, briksdalsbreen and nigardsbreen from their length records |
publishDate |
2007 |
url |
https://dspace.library.uu.nl/handle/1874/41066 |
long_lat |
ENVELOPE(9.642,9.642,63.170,63.170) |
geographic |
Ela Norway |
geographic_facet |
Ela Norway |
genre |
glacier |
genre_facet |
glacier |
op_relation |
0022-1430 https://dspace.library.uu.nl/handle/1874/41066 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1772182414921039872 |