An Intensive Observation of Calving at Helheim Glacier, East Greenland
Calving of glacial ice into the ocean from the Greenland Ice Sheet is an important component of global sea level rise. The calving process itself is relatively poorly observed, understood, and modeled; as such, it represents a bottleneck in improving future global sea level estimates in climate mode...
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ftdoajarticles:oai:doaj.org/article:18715fc36488483f9c2b548a44abb8ff 2023-05-15T16:03:37+02:00 An Intensive Observation of Calving at Helheim Glacier, East Greenland David M. Holland Denis Voytenko Knut Christianson Timothy H. Dixon M. Jeffrey Mei Byron R. Parizek Irena Vaňková Ryan T. Walker Jacob I. Walter Keith Nicholls Denise Holland 2016-12-01T00:00:00Z https://doi.org/10.5670/oceanog.2016.98 https://doaj.org/article/18715fc36488483f9c2b548a44abb8ff EN eng The Oceanography Society https://tos.org/oceanography/assets/docs/29-4_holland.pdf https://doaj.org/toc/1042-8275 doi:10.5670/oceanog.2016.98 1042-8275 https://doaj.org/article/18715fc36488483f9c2b548a44abb8ff Oceanography, Vol 29, Iss 4, Pp 46-61 (2016) Greenland Ice Sheet sea level rise calving Helheim Glacier Oceanography GC1-1581 article 2016 ftdoajarticles https://doi.org/10.5670/oceanog.2016.98 2022-12-31T06:37:35Z Calving of glacial ice into the ocean from the Greenland Ice Sheet is an important component of global sea level rise. The calving process itself is relatively poorly observed, understood, and modeled; as such, it represents a bottleneck in improving future global sea level estimates in climate models. We organized a pilot project to observe the calving process at Helheim Glacier in East Greenland in an effort to better understand it. During an intensive one-week survey, we deployed a suite of instrumentation including a terrestrial radar interferometer, GPS receivers, seismometers, tsunameters, and an automated weather station. This effort captured a calving process and measured various glaciological, oceanographic, and atmospheric parameters before, during, and after the event. One outcome of our observations is evidence that the calving process actually consists of a number of discrete events, spread out over time, in this instance over at least two days. This time span has implications for models of the process. Realistic projections of future global sea level will depend on accurate parametrization of calving, which will require more sustained observations. Article in Journal/Newspaper East Greenland glacier Greenland Ice Sheet Directory of Open Access Journals: DOAJ Articles Greenland Oceanography 29 4 46 61 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Greenland Ice Sheet sea level rise calving Helheim Glacier Oceanography GC1-1581 |
spellingShingle |
Greenland Ice Sheet sea level rise calving Helheim Glacier Oceanography GC1-1581 David M. Holland Denis Voytenko Knut Christianson Timothy H. Dixon M. Jeffrey Mei Byron R. Parizek Irena Vaňková Ryan T. Walker Jacob I. Walter Keith Nicholls Denise Holland An Intensive Observation of Calving at Helheim Glacier, East Greenland |
topic_facet |
Greenland Ice Sheet sea level rise calving Helheim Glacier Oceanography GC1-1581 |
description |
Calving of glacial ice into the ocean from the Greenland Ice Sheet is an important component of global sea level rise. The calving process itself is relatively poorly observed, understood, and modeled; as such, it represents a bottleneck in improving future global sea level estimates in climate models. We organized a pilot project to observe the calving process at Helheim Glacier in East Greenland in an effort to better understand it. During an intensive one-week survey, we deployed a suite of instrumentation including a terrestrial radar interferometer, GPS receivers, seismometers, tsunameters, and an automated weather station. This effort captured a calving process and measured various glaciological, oceanographic, and atmospheric parameters before, during, and after the event. One outcome of our observations is evidence that the calving process actually consists of a number of discrete events, spread out over time, in this instance over at least two days. This time span has implications for models of the process. Realistic projections of future global sea level will depend on accurate parametrization of calving, which will require more sustained observations. |
format |
Article in Journal/Newspaper |
author |
David M. Holland Denis Voytenko Knut Christianson Timothy H. Dixon M. Jeffrey Mei Byron R. Parizek Irena Vaňková Ryan T. Walker Jacob I. Walter Keith Nicholls Denise Holland |
author_facet |
David M. Holland Denis Voytenko Knut Christianson Timothy H. Dixon M. Jeffrey Mei Byron R. Parizek Irena Vaňková Ryan T. Walker Jacob I. Walter Keith Nicholls Denise Holland |
author_sort |
David M. Holland |
title |
An Intensive Observation of Calving at Helheim Glacier, East Greenland |
title_short |
An Intensive Observation of Calving at Helheim Glacier, East Greenland |
title_full |
An Intensive Observation of Calving at Helheim Glacier, East Greenland |
title_fullStr |
An Intensive Observation of Calving at Helheim Glacier, East Greenland |
title_full_unstemmed |
An Intensive Observation of Calving at Helheim Glacier, East Greenland |
title_sort |
intensive observation of calving at helheim glacier, east greenland |
publisher |
The Oceanography Society |
publishDate |
2016 |
url |
https://doi.org/10.5670/oceanog.2016.98 https://doaj.org/article/18715fc36488483f9c2b548a44abb8ff |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland glacier Greenland Ice Sheet |
genre_facet |
East Greenland glacier Greenland Ice Sheet |
op_source |
Oceanography, Vol 29, Iss 4, Pp 46-61 (2016) |
op_relation |
https://tos.org/oceanography/assets/docs/29-4_holland.pdf https://doaj.org/toc/1042-8275 doi:10.5670/oceanog.2016.98 1042-8275 https://doaj.org/article/18715fc36488483f9c2b548a44abb8ff |
op_doi |
https://doi.org/10.5670/oceanog.2016.98 |
container_title |
Oceanography |
container_volume |
29 |
container_issue |
4 |
container_start_page |
46 |
op_container_end_page |
61 |
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1766399318103687168 |