Progress toward globally complete frontal ablation estimates of marine-terminating glaciers
Knowledge of frontal ablation from marine-terminating glaciers (i.e., mass lost at the calving face) is critical for constraining glacier mass balance, improving projections of mass change, and identifying the processes that govern frontal mass loss. Here, we discuss the challenges involved in compu...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Cambridge University Press
2022-09-01
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| Series: | Annals of Glaciology |
| Subjects: | |
| Online Access: | https://www.cambridge.org/core/product/identifier/S0260305523000356/type/journal_article |
| _version_ | 1797660561276665856 |
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| author | William Kochtitzky Luke Copland Wesley Van Wychen Regine Hock David R. Rounce Hester Jiskoot Ted A. Scambos Mathieu Morlighem Michalea King Leo Cha Luke Gould Paige-Marie Merrill Andrey Glazovsky Romain Hugonnet Tazio Strozzi Brice Noël Francisco Navarro Romain Millan Julian A. Dowdeswell Alison Cook Abigail Dalton Shfaqat Khan Jacek Jania |
| author_facet | William Kochtitzky Luke Copland Wesley Van Wychen Regine Hock David R. Rounce Hester Jiskoot Ted A. Scambos Mathieu Morlighem Michalea King Leo Cha Luke Gould Paige-Marie Merrill Andrey Glazovsky Romain Hugonnet Tazio Strozzi Brice Noël Francisco Navarro Romain Millan Julian A. Dowdeswell Alison Cook Abigail Dalton Shfaqat Khan Jacek Jania |
| author_sort | William Kochtitzky |
| collection | DOAJ |
| description | Knowledge of frontal ablation from marine-terminating glaciers (i.e., mass lost at the calving face) is critical for constraining glacier mass balance, improving projections of mass change, and identifying the processes that govern frontal mass loss. Here, we discuss the challenges involved in computing frontal ablation and the unique issues pertaining to both glaciers and ice sheets. Frontal ablation estimates require numerous datasets, including glacier terminus area change, thickness, surface velocity, density, and climatic mass balance. Observations and models of these variables have improved over the past decade, but significant gaps and regional discrepancies remain, and better quantification of temporal variability in frontal ablation is needed. Despite major advances in satellite-derived large-scale datasets, large uncertainties remain with respect to ice thickness, depth-averaged velocities, and the bulk density of glacier ice close to calving termini or grounding lines. We suggest ways in which we can move toward globally complete frontal ablation estimates, highlighting areas where we need improved datasets and increased collaboration. |
| first_indexed | 2024-03-11T18:31:40Z |
| format | Article |
| id | doaj.art-2e9f4d76155843eaa825f655346163ad |
| institution | Directory Open Access Journal |
| issn | 0260-3055 1727-5644 |
| language | English |
| last_indexed | 2024-03-11T18:31:40Z |
| publishDate | 2022-09-01 |
| publisher | Cambridge University Press |
| record_format | Article |
| series | Annals of Glaciology |
| spelling | doaj.art-2e9f4d76155843eaa825f655346163ad2023-10-13T10:44:52ZengCambridge University PressAnnals of Glaciology0260-30551727-56442022-09-016314315210.1017/aog.2023.35Progress toward globally complete frontal ablation estimates of marine-terminating glaciersWilliam Kochtitzky0https://orcid.org/0000-0001-9487-1509Luke Copland1https://orcid.org/0000-0001-5374-2145Wesley Van Wychen2Regine Hock3https://orcid.org/0000-0001-8336-9441David R. Rounce4https://orcid.org/0000-0002-4481-4191Hester Jiskoot5https://orcid.org/0000-0003-0849-5223Ted A. Scambos6https://orcid.org/0000-0003-4268-6322Mathieu Morlighem7https://orcid.org/0000-0001-5219-1310Michalea King8Leo Cha9Luke Gould10Paige-Marie Merrill11Andrey Glazovsky12Romain Hugonnet13Tazio Strozzi14https://orcid.org/0000-0002-9054-951XBrice Noël15Francisco Navarro16https://orcid.org/0000-0002-5147-0067Romain Millan17Julian A. Dowdeswell18Alison Cook19Abigail Dalton20Shfaqat Khan21Jacek Jania22School of Marine and Environmental Programs, University of New England, Biddeford, Maine, USADepartment of Geography, Environment and Geomatics, University of Ottawa, Ottawa, Ontario, CanadaDepartment of Geography, Environment and Geomatics, University of Ottawa, Ottawa, Ontario, Canada Department of Geography and Environmental Management, University of Waterloo, Waterloo, Ontario, CanadaDepartment of Geosciences, University of Oslo, Oslo, Norway Geophysical Institute, University of Alaska Fairbanks, Fairbanks, Alaska, USADepartment of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania, USADepartment of Geography & Environment, University of Lethbridge, Lethbridge, Alberta, CanadaEarth Science Observation Center, CIRES, University of Colorado Boulder, Boulder, Colorado, USADepartment of Earth Sciences, Dartmouth College, Hanover, New Hampshire, USAApplied Physics Laboratory, University of Washington, Seattle, WA, USASchool of Marine and Environmental Programs, University of New England, Biddeford, Maine, USASchool of Marine and Environmental Programs, University of New England, Biddeford, Maine, USASchool of Marine and Environmental Programs, University of New England, Biddeford, Maine, USAInstitute of Geography, Russian Academy of Sciences, Moscow, RussiaLEGOS, Université de Toulouse, CNES, CNRS, IRD, UPS, Toulouse, France Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zürich, Zürich, Switzerland Swiss Federal Institute for Forest, Snow and Landscape Research (WSL), Birmensdorf, SwitzerlandGamma Remote Sensing, Gümligen, BE, Switzerland Department of Geography, Laboratoire de Climatologie et Topoclimatologie, University of Liège, Liège, BelgiumDepartment of Geography, Laboratoire de Climatologie et Topoclimatologie, University of Liège, Liège, Belgium Institute for Marine and Atmospheric Research Utrecht, Utrecht University, Utrecht, The NetherlandsDepartamento de Matemática Aplicada a las TIC, Universidad Politécnica de Madrid, Madrid, SpainInstitut des Géosciences de l'Environnement, CNES, Grenoble, FranceScott Polar Research Institute, University of Cambridge, Cambridge, UKScottish Association for Marine Science, Oban, UKDepartment of Geography, Environment and Geomatics, University of Ottawa, Ottawa, Ontario, CanadaDTU Space, Technical University of Denmark, Kongens Lyngby, DenmarkUniversity of Silesia, Katowice, PolandKnowledge of frontal ablation from marine-terminating glaciers (i.e., mass lost at the calving face) is critical for constraining glacier mass balance, improving projections of mass change, and identifying the processes that govern frontal mass loss. Here, we discuss the challenges involved in computing frontal ablation and the unique issues pertaining to both glaciers and ice sheets. Frontal ablation estimates require numerous datasets, including glacier terminus area change, thickness, surface velocity, density, and climatic mass balance. Observations and models of these variables have improved over the past decade, but significant gaps and regional discrepancies remain, and better quantification of temporal variability in frontal ablation is needed. Despite major advances in satellite-derived large-scale datasets, large uncertainties remain with respect to ice thickness, depth-averaged velocities, and the bulk density of glacier ice close to calving termini or grounding lines. We suggest ways in which we can move toward globally complete frontal ablation estimates, highlighting areas where we need improved datasets and increased collaboration.https://www.cambridge.org/core/product/identifier/S0260305523000356/type/journal_articleAntarctic glaciologyarctic glaciologycalvingglacier calvingremote sensing |
| spellingShingle | William Kochtitzky Luke Copland Wesley Van Wychen Regine Hock David R. Rounce Hester Jiskoot Ted A. Scambos Mathieu Morlighem Michalea King Leo Cha Luke Gould Paige-Marie Merrill Andrey Glazovsky Romain Hugonnet Tazio Strozzi Brice Noël Francisco Navarro Romain Millan Julian A. Dowdeswell Alison Cook Abigail Dalton Shfaqat Khan Jacek Jania Progress toward globally complete frontal ablation estimates of marine-terminating glaciers Annals of Glaciology Antarctic glaciology arctic glaciology calving glacier calving remote sensing |
| title | Progress toward globally complete frontal ablation estimates of marine-terminating glaciers |
| title_full | Progress toward globally complete frontal ablation estimates of marine-terminating glaciers |
| title_fullStr | Progress toward globally complete frontal ablation estimates of marine-terminating glaciers |
| title_full_unstemmed | Progress toward globally complete frontal ablation estimates of marine-terminating glaciers |
| title_short | Progress toward globally complete frontal ablation estimates of marine-terminating glaciers |
| title_sort | progress toward globally complete frontal ablation estimates of marine terminating glaciers |
| topic | Antarctic glaciology arctic glaciology calving glacier calving remote sensing |
| url | https://www.cambridge.org/core/product/identifier/S0260305523000356/type/journal_article |
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