Modern and Little Ice Age equilibrium-line altitudes on Outlet Valley glaciers from Jostedalsbreen, western Norway: An evaluation of different approaches to their calculation

Torsnes, I; Rye, N; Nesje, A

doi:10.2307/1551546

Title: Modern and Little Ice Age equilibrium-line altitudes on Outlet Valley glaciers from Jostedalsbreen, western Norway: An evaluation of different approaches to their calculation

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Abstract

The modern and Little Ice Age (LIA) equilibrium-line altitude (ELA) of 20 outlet valley glacier from Jostedalsbreen, western Norway, has been calculated using different approaches. Using an accumulation area ratio (AAR) of 0.6 [+-] 0.05 gave a mean little Ice Age ELA depression of 70 m. A method developed by M. Kuhle, taking the influence by topography into account gave a mean ELA depression of 35-255 m, the median elevation of glaciers 115 m, and the toe-to-headwall altitude ration 140 m. Differences in the ELA estimates can be attributed to the differences in topography and morphology of the glaciers. The AAR method appears to provide the most reliable results. This will aid in determining mean global temperatures during the LIA. 34 refs., 9 figs., 5 tabs.

Authors:

Torsnes, I; Rye, N ^[1]; Nesje, A ^[2]

Univ. of Bergen (Norway)
Univ. of Bergen, Bergen-Sandviken (Norway)

Publication Date:: Sat May 01 00:00:00 EDT 1993

OSTI Identifier:: 6383061

Resource Type:: Journal Article

Journal Name:: Arctic and Alpine Research (Boulder, Colorado); (United States)

Additional Journal Information:: Journal Volume: 25:2; Journal ID: ISSN 0004-0851

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES; CLIMATIC CHANGE; GLOBAL ASPECTS; LITTLE ICE AGE; TEMPERATURE MEASUREMENT; GLACIERS; MATHEMATICAL MODELS; MORPHOLOGY; TOPOGRAPHY; 540110*

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                    Torsnes, I, Rye, N, and Nesje, A. Modern and Little Ice Age equilibrium-line altitudes on Outlet Valley glaciers from Jostedalsbreen, western Norway: An evaluation of different approaches to their calculation.  United States: N. p., 1993. 
        Web.  doi:10.2307/1551546.

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                    Torsnes, I, Rye, N, & Nesje, A. Modern and Little Ice Age equilibrium-line altitudes on Outlet Valley glaciers from Jostedalsbreen, western Norway: An evaluation of different approaches to their calculation.  United States.  https://doi.org/10.2307/1551546

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                    Torsnes, I, Rye, N, and Nesje, A. 1993.  
        "Modern and Little Ice Age equilibrium-line altitudes on Outlet Valley glaciers from Jostedalsbreen, western Norway: An evaluation of different approaches to their calculation".  United States.  https://doi.org/10.2307/1551546.

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@article{osti_6383061,

  title        = {Modern and Little Ice Age equilibrium-line altitudes on Outlet Valley glaciers from Jostedalsbreen, western Norway: An evaluation of different approaches to their calculation},

  author       = {Torsnes, I and Rye, N and Nesje, A},

  abstractNote = {The modern and Little Ice Age (LIA) equilibrium-line altitude (ELA) of 20 outlet valley glacier from Jostedalsbreen, western Norway, has been calculated using different approaches. Using an accumulation area ratio (AAR) of 0.6 [+-] 0.05 gave a mean little Ice Age ELA depression of 70 m. A method developed by M. Kuhle, taking the influence by topography into account gave a mean ELA depression of 35-255 m, the median elevation of glaciers 115 m, and the toe-to-headwall altitude ration 140 m. Differences in the ELA estimates can be attributed to the differences in topography and morphology of the glaciers. The AAR method appears to provide the most reliable results. This will aid in determining mean global temperatures during the LIA. 34 refs., 9 figs., 5 tabs.},

  doi          = {10.2307/1551546},

  url          = {https://www.osti.gov/biblio/6383061},
  journal      = {Arctic and Alpine Research (Boulder, Colorado); (United States)},

  issn         = {0004-0851},

  number       = ,

  volume       = 25:2,

  place        = {United States},

  year         = {Sat May 01 00:00:00 EDT 1993},

  month        = {Sat May 01 00:00:00 EDT 1993}

}

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