Atmospheric forcing of rapid marine-terminating glacier retreat in the Canadian Arctic Archipelago
Autor: | Cook, Alison J., Copland, Luke, Noel, Brice P. Y., Stokes, Chris R., Bentley, Michael J., Sharp, Martin J., Bingham, Robert G., van den Broeke, Michiel R., Sub Dynamics Meteorology, Marine and Atmospheric Research |
---|---|
Přispěvatelé: | Sub Dynamics Meteorology, Marine and Atmospheric Research |
Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
010504 meteorology & atmospheric sciences
education Forcing (mathematics) 010502 geochemistry & geophysics 01 natural sciences parasitic diseases Dominance (ecology) Research Articles 0105 earth and related environmental sciences geography Multidisciplinary geography.geographical_feature_category fungi SciAdv r-articles Geology Glacier Atmospheric forcing Atmospheric temperature humanities Sea surface temperature Oceanography Arctic 13. Climate action Archipelago sense organs geographic locations Research Article |
Zdroj: | Cook, A J, Copland, L, Noel, B P Y, Stokes, C R, Bentley, M J, Sharp, M J, Bingham, R G & van den Broeke, M R 2019, ' Atmospheric forcing of rapid marine-terminating glacier retreat in the Canadian Arctic Archipelago ', Science Advances, vol. 5, eaau8507 . https://doi.org/10.1126/sciadv.aau8507 Science advances, 2019, Vol.5(3), pp.eaau8507 [Peer Reviewed Journal] Science advances, 5(3). American Association for the Advancement of Science Science Advances |
ISSN: | 2375-2548 |
Popis: | Marine-terminating glaciers in the Canadian Arctic Archipelago have retreated in response to atmospheric, not oceanic, warming. The Canadian Arctic Archipelago contains >300 glaciers that terminate in the ocean, but little is known about changes in their frontal positions in response to recent changes in the ocean-climate system. Here, we examine changes in glacier frontal positions since the 1950s and investigate the relative influence of oceanic temperature versus atmospheric temperature. Over 94% of glaciers retreated between 1958 and 2015, with a region-wide trend of gradual retreat before ~2000, followed by a fivefold increase in retreat rates up to 2015. Retreat patterns show no correlation with changes in subsurface ocean temperatures, in clear contrast to the dominance of ocean forcing in western Greenland and elsewhere. Rather, significant correlations with surface melt indicate that increased atmospheric temperature has been the primary driver of the acceleration in marine-terminating glacier frontal retreat in this region. |
Databáze: | OpenAIRE |
Externí odkaz: |