Blar i Bergen Open Research Archive på forfatter "Nesje, Atle"
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Radiocarbon dates of two musk ox vertebrae reveal ice-free conditions during late Marine Isotope Stage 3 in central South Norway
Hufthammer, Anne Karin; Nesje, Atle; Higham, Thomas F.G. (Peer reviewed; Journal article, 2019)One of the most reliable proofs of terrestrial ice-free conditions within Stadials is the presence of terrestrial vertebrate fauna that require access to vegetation in the winter, for example sedentary birds such as ... -
Reconstruction of former glacier equilibrium-line altitudes based on proglacial sites: an evaluation of approaches and selection of sites
Dahl, Svein Olaf; Bakke, Jostein; Lie, Øyvind; Nesje, Atle (Quaternary Science Reviews; 22(2/4), Journal article, 2003)Various approaches are used to record variations in glacier activity and equilibrium-line altitudes (ELAs) based on proglacial sites (lacustrine and terrestrial). These approaches are based on a conceptual model of ... -
A reconstruction of Jostedalsbreen during the Little Ice Age and geometric changes to outlet glaciers since then
Carrivick, Jonathan L.; Andreassen, Liss Marie; Nesje, Atle; Yde, Jacob C. (Journal article; Peer reviewed, 2022)Mountain glaciers and ice caps are undergoing rapid mass loss but rates of present-day changes and models of future projections both lack long-term (centennial-scale) context. Here, we reconstruct the maximum glacier extent ... -
Spatial patterns of North Atlantic Oscillation influence on mass balance variability of European glaciers
Marzeion, Ben; Nesje, Atle (Peer reviewed; Journal article, 2012-06-14)We present and validate a set of minimal models of glacier mass balance variability. The most skillful model is then applied to reconstruct 7735 individual time series of mass balance variability for all glaciers in the ... -
Spring-summer temperature reconstruction in western Norway 1734-2003: a data-synthesis approach
Nordli, Øyvind; Lie, Øyvind; Nesje, Atle; Dahl, Svein Olaf (Peer reviewed; Journal article, 2003-12-16)A series of spring–summer (April–August) temperatures was reconstructed for the period 1734–1923 for western Norway based on multi-proxy data. For the period 1734–1842 the long-term variations were based on terminal moraines ... -
Stratigraphy and age of a Neoglacial sedimentary succession of proglacial outwash and an alluvial fan in Langedalen, Veitastrond, western Norway
Nesje, Atle; Rüther, Denise Christina; Yde, Jacob C. (Journal article; Peer reviewed, 2022)This study presents the sedimentary succession of an outwash plain and an alluvial fan located along the valley Langedalen at the south-eastern side of the Jostedalsbreen ice cap in inner Sogn, western Norway. A newly ... -
Subglacial sediment distribution from constrained seismic inversion, using MuLTI software: examples from Midtdalsbreen, Norway
Killingbeck, Siobhan F; Booth, Adam D; Livermore, Philip W; West, Landis J; Reinardy, Benedict T.I.; Nesje, Atle (Journal article; Peer reviewed, 2019)Fast ice flow is associated with the deformation of subglacial sediment. Seismic shear velocities, Vs, increase with the rigidity of material and hence can be used to distinguish soft sediment from hard bedrock substrates. ... -
A theoretical approach to glacier equilibrium-line altitudes using meteorological data and glacier massbalance
Lie, Øyvind; Dahl, Svein Olaf; Nesje, Atle (Peer reviewed; Journal article, 2003-05-01)Based on a close exponential relationship between mean ablation-season temperature and winter precipitation at the equilibrium-line altitude (ELA) of 10 Norwegian glaciers, three equations are derived. The first equation ... -
Theoretical equilibrium-line altitudes and glacier buildup sensitivity in southern Norway based on meteorological data in a geographical information system
Lie, Øyvind; Dahl, Svein Olaf; Nesje, Atle (Peer reviewed; Journal article, 2003-05-01)Three equations derived from a close exponential glacier-climate relationship at the equilibrium-line altitude (ELA) of Norwegian glaciers have been utilized and implemented in a geographical information system (GIS). The ...