Potential to recover a record of Holocene climate and sea ice from Müller Ice Cap, Canada
Müller Ice Cap sits on Umingmat Nunaat (Axel Heiberg Island), Nunavut, Canada, ~ 80°N. Its high latitude and elevation suggest it experiences relatively little melt and preserves an undisturbed paleoclimate record. Here, we present a suite of field measurements, complemented by remote sensing, that...
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Cambridge University Press
2024-01-01
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| Series: | Journal of Glaciology |
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| Online Access: | https://www.cambridge.org/core/product/identifier/S0022143024000753/type/journal_article |
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| author | David Armond Lilien Niels Fabrin Nymand Tamara Annina Gerber Daniel Steinhage Daniela Jansen Laura Thomson Madeline Myers Steven Franke Drew Taylor Prasad Gogineni Marcos Lemes Bo Møllesøe Vinther Dorthe Dahl-Jensen |
| author_facet | David Armond Lilien Niels Fabrin Nymand Tamara Annina Gerber Daniel Steinhage Daniela Jansen Laura Thomson Madeline Myers Steven Franke Drew Taylor Prasad Gogineni Marcos Lemes Bo Møllesøe Vinther Dorthe Dahl-Jensen |
| author_sort | David Armond Lilien |
| collection | DOAJ |
| description | Müller Ice Cap sits on Umingmat Nunaat (Axel Heiberg Island), Nunavut, Canada, ~ 80°N. Its high latitude and elevation suggest it experiences relatively little melt and preserves an undisturbed paleoclimate record. Here, we present a suite of field measurements, complemented by remote sensing, that constrain the ice thickness, accumulation rate, temperature, ice-flow velocity, and surface-elevation change of Müller Ice Cap. These measurements show that some areas near the top of the ice cap are more than 600 m thick, have nearly stable surface elevation, and flow slowly, making them good candidates for an ice core. The current mean annual surface temperature is −19.6 °C, which combined with modeling of the temperature profile indicates that the ice is frozen to the bed. Modeling of the depth-age scale indicates that Pleistocene ice is likely to exist with measurable resolution (300–1000 yr m−1) 20–90 m from the bed, assuming that Müller Ice Cap survived the Holocene Climatic Optimum with substantial ice thickness (~400 m or more). These conditions suggest that an undisturbed Holocene climate record could likely be recovered from Müller Ice Cap. We suggest 91.795°W, 79.874°N as the most promising drill site. |
| format | Article |
| id | doaj-art-8b790be2af9440b4bb064e600028cc53 |
| institution | Kabale University |
| issn | 0022-1430 1727-5652 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Journal of Glaciology |
| spelling | doaj-art-8b790be2af9440b4bb064e600028cc532025-01-16T21:51:38ZengCambridge University PressJournal of Glaciology0022-14301727-56522024-01-017010.1017/jog.2024.75Potential to recover a record of Holocene climate and sea ice from Müller Ice Cap, CanadaDavid Armond Lilien0https://orcid.org/0000-0001-8667-8020Niels Fabrin Nymand1Tamara Annina Gerber2https://orcid.org/0000-0002-0368-7229Daniel Steinhage3https://orcid.org/0000-0003-4737-9751Daniela Jansen4Laura Thomson5https://orcid.org/0000-0003-4753-7924Madeline Myers6Steven Franke7https://orcid.org/0000-0001-8462-4379Drew Taylor8Prasad Gogineni9Marcos Lemes10Bo Møllesøe Vinther11Dorthe Dahl-Jensen12https://orcid.org/0000-0002-1474-1948Centre for Earth Observation Science, University of Manitoba, Winnipeg, MB, CanadaPhysics of Ice, Climate, and Earth, University of Copenhagen, Copenhagen, DenmarkPhysics of Ice, Climate, and Earth, University of Copenhagen, Copenhagen, DenmarkAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, GermanyAlfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, GermanyDepartment of Geography and Planning, Queen's University, Kingston, ON, CanadaDepartment of Geography and Planning, Queen's University, Kingston, ON, CanadaDepartment of Geosciences, Tübingen University, Tübingen, GermanyRemote Sensing Center, University of Alabama, Tuscaloosa, AL, USARemote Sensing Center, University of Alabama, Tuscaloosa, AL, USACentre for Earth Observation Science, University of Manitoba, Winnipeg, MB, CanadaPhysics of Ice, Climate, and Earth, University of Copenhagen, Copenhagen, DenmarkCentre for Earth Observation Science, University of Manitoba, Winnipeg, MB, Canada Physics of Ice, Climate, and Earth, University of Copenhagen, Copenhagen, DenmarkMüller Ice Cap sits on Umingmat Nunaat (Axel Heiberg Island), Nunavut, Canada, ~ 80°N. Its high latitude and elevation suggest it experiences relatively little melt and preserves an undisturbed paleoclimate record. Here, we present a suite of field measurements, complemented by remote sensing, that constrain the ice thickness, accumulation rate, temperature, ice-flow velocity, and surface-elevation change of Müller Ice Cap. These measurements show that some areas near the top of the ice cap are more than 600 m thick, have nearly stable surface elevation, and flow slowly, making them good candidates for an ice core. The current mean annual surface temperature is −19.6 °C, which combined with modeling of the temperature profile indicates that the ice is frozen to the bed. Modeling of the depth-age scale indicates that Pleistocene ice is likely to exist with measurable resolution (300–1000 yr m−1) 20–90 m from the bed, assuming that Müller Ice Cap survived the Holocene Climatic Optimum with substantial ice thickness (~400 m or more). These conditions suggest that an undisturbed Holocene climate record could likely be recovered from Müller Ice Cap. We suggest 91.795°W, 79.874°N as the most promising drill site.https://www.cambridge.org/core/product/identifier/S0022143024000753/type/journal_articleIce capice corepaleoclimate |
| spellingShingle | David Armond Lilien Niels Fabrin Nymand Tamara Annina Gerber Daniel Steinhage Daniela Jansen Laura Thomson Madeline Myers Steven Franke Drew Taylor Prasad Gogineni Marcos Lemes Bo Møllesøe Vinther Dorthe Dahl-Jensen Potential to recover a record of Holocene climate and sea ice from Müller Ice Cap, Canada Journal of Glaciology Ice cap ice core paleoclimate |
| title | Potential to recover a record of Holocene climate and sea ice from Müller Ice Cap, Canada |
| title_full | Potential to recover a record of Holocene climate and sea ice from Müller Ice Cap, Canada |
| title_fullStr | Potential to recover a record of Holocene climate and sea ice from Müller Ice Cap, Canada |
| title_full_unstemmed | Potential to recover a record of Holocene climate and sea ice from Müller Ice Cap, Canada |
| title_short | Potential to recover a record of Holocene climate and sea ice from Müller Ice Cap, Canada |
| title_sort | potential to recover a record of holocene climate and sea ice from muller ice cap canada |
| topic | Ice cap ice core paleoclimate |
| url | https://www.cambridge.org/core/product/identifier/S0022143024000753/type/journal_article |
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