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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Online Access: | https://digitalcommons.usf.edu/geo_facpub/1528 https://doi.org/10.5670/oceanog.2016.98 |
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ftusouthflorida:oai:digitalcommons.usf.edu:geo_facpub-2496 2023-07-30T04:03:14+02:00 An Intensive Observation of Calving at Helheim Glacier, East Greenland Holland, David M. Voytenko, Denis Christianson, Knut Dixon, Timothy H. Mei, M. J. Parizek, Byron R. Vaňková, Irena Walker, Ryan T. Walter, Jacob I. Nicholls, Keith Holland, Denise 2016-12-01T08:00:00Z https://digitalcommons.usf.edu/geo_facpub/1528 https://doi.org/10.5670/oceanog.2016.98 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/geo_facpub/1528 doi:10.5670/oceanog.2016.98 https://doi.org/10.5670/oceanog.2016.98 School of Geosciences Faculty and Staff Publications Earth Sciences article 2016 ftusouthflorida https://doi.org/10.5670/oceanog.2016.98 2023-07-13T20:43:52Z 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 University of South Florida St. Petersburg: Digital USFSP Greenland Oceanography 29 4 46 61 |
institution |
Open Polar |
collection |
University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
Earth Sciences |
spellingShingle |
Earth Sciences Holland, David M. Voytenko, Denis Christianson, Knut Dixon, Timothy H. Mei, M. J. Parizek, Byron R. Vaňková, Irena Walker, Ryan T. Walter, Jacob I. Nicholls, Keith Holland, Denise An Intensive Observation of Calving at Helheim Glacier, East Greenland |
topic_facet |
Earth Sciences |
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 |
Holland, David M. Voytenko, Denis Christianson, Knut Dixon, Timothy H. Mei, M. J. Parizek, Byron R. Vaňková, Irena Walker, Ryan T. Walter, Jacob I. Nicholls, Keith Holland, Denise |
author_facet |
Holland, David M. Voytenko, Denis Christianson, Knut Dixon, Timothy H. Mei, M. J. Parizek, Byron R. Vaňková, Irena Walker, Ryan T. Walter, Jacob I. Nicholls, Keith Holland, Denise |
author_sort |
Holland, David M. |
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 |
Digital Commons @ University of South Florida |
publishDate |
2016 |
url |
https://digitalcommons.usf.edu/geo_facpub/1528 https://doi.org/10.5670/oceanog.2016.98 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
East Greenland glacier Greenland Ice Sheet |
genre_facet |
East Greenland glacier Greenland Ice Sheet |
op_source |
School of Geosciences Faculty and Staff Publications |
op_relation |
https://digitalcommons.usf.edu/geo_facpub/1528 doi:10.5670/oceanog.2016.98 https://doi.org/10.5670/oceanog.2016.98 |
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 |
_version_ |
1772814188869058560 |