the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Velocity structure, front position changes and calving of the tidewater glacier Kronebreen, Svalbard
Abstract. Glacier calving and retreat constitute a substantial portion of the ablation of tidewater glaciers and is therefore of interest in climate models in order to get more accurate predictions of future development of glaciers and their contribution to sea level rise. We use photogrammetry, global navigation satellite system, surface elevation and bathymetric data from Kronebreen to test a crevasse-depth calving model, investigate meteorological controls on near terminus velocity fluctuations and finally short-term and longer term (multi annual to decadal) controls of the front positions and calving. The relationship between velocity structure, crevasse formation, and calving events at Kronebreen is found to be more complex than outlined in the crevasse-depth calving model. Surface meltwater is found to be closely connected to velocities, but no direct relationship between velocity variation and calving could be seen along the investigated transect. On a long term basis the front positions of Kronebreen are results of a combination of several factors, particularly the interplay with the confluent glacier Kongsvegen, and change in discharge fluxes as a result of surge dynamics. Yet the bed topography is found to be an important control on the retreat of this glacier, similar to several other tidewater glaciers.
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- RC C61: 'Review of “Velocity structure, front position changes, and calving of the tidewater glacier Kronebreen, Svalbard” by Sund, Eiken, and Rolstad Denby.', Jason Amundson, 18 Feb 2011
- RC C64: 'Review of the manuscript: "Velocity structure, front position changes and calving of the tidewater glacier Kronebreen, Svalbard" by Sund and others.', Faezeh M. Nick, 18 Feb 2011
- AC C167: 'Response to reviewers', Monica Sund, 22 Mar 2011
- EC C185: 'Comment from Editor', Ian M. Howat, 24 Mar 2011
- RC C61: 'Review of “Velocity structure, front position changes, and calving of the tidewater glacier Kronebreen, Svalbard” by Sund, Eiken, and Rolstad Denby.', Jason Amundson, 18 Feb 2011
- RC C64: 'Review of the manuscript: "Velocity structure, front position changes and calving of the tidewater glacier Kronebreen, Svalbard" by Sund and others.', Faezeh M. Nick, 18 Feb 2011
- AC C167: 'Response to reviewers', Monica Sund, 22 Mar 2011
- EC C185: 'Comment from Editor', Ian M. Howat, 24 Mar 2011
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Cited
7 citations as recorded by crossref.
- Marginal Fluctuations of a Svalbard Surge-Type Tidewater Glacier, Blomstrandbreen, Since the Little Ice Age: A Record of Three Surges D. Burton et al. 10.1657/AAAR0014-094
- Tidewater Glaciers and Bedrock Characteristics Control the Phytoplankton Growth Environment in a Fjord in the Arctic L. Halbach et al. 10.3389/fmars.2019.00254
- Annual to Daily Ice Velocity and Water Pressure Variations on Ka Roimata o Hine Hukatere (Franz Josef Glacier), New Zealand B. Anderson et al. 10.1657/1938-4246-46.4.919
- Tidewater glaciers as “climate refugia” for zooplankton-dependent food web in Kongsfjorden, Svalbard H. Hop et al. 10.3389/fmars.2023.1161912
- Characterizing the influence of Atlantic water intrusion on water mass formation and phytoplankton distribution in Kongsfjorden, Svalbard C. Payne & C. Roesler 10.1016/j.csr.2019.104005
- Characterization of seawater properties and ocean heat content in Kongsfjorden, Svalbard Archipelago S. Aliani et al. 10.1007/s12210-016-0544-4
- Sensitivity of subglacial drainage to water supply distribution at the Kongsfjord basin, Svalbard C. Scholzen et al. 10.5194/tc-15-2719-2021