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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ftpubmed:oai:pubmedcentral.nih.gov:7430530 2023-05-15T16:03:36+02:00 An Intensive Observation of Calving at Helheim Glacier, East Greenland Holland, David M. Voytenko, Denis Christianson, Knut Dixon, Timothy H. Mei, M. Jeffrey Parizek, Byron R. Vaňková, Irena Walker, Ryan T. Walter, Jacob I. Nicholls, Keith Holland, Denise 2016-12-11 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7430530/ https://doi.org/10.5670/oceanog.2016.98 en eng http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7430530/ http://dx.doi.org/10.5670/oceanog.2016.98 Oceanography (Wash D C) Article Text 2016 ftpubmed https://doi.org/10.5670/oceanog.2016.98 2020-08-23T00:35:12Z 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. Text East Greenland glacier Greenland Ice Sheet PubMed Central (PMC) Greenland Oceanography 29 4 46 61 |
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Article Holland, David M. Voytenko, Denis Christianson, Knut Dixon, Timothy H. Mei, M. Jeffrey 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 |
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Article |
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 |
Text |
author |
Holland, David M. Voytenko, Denis Christianson, Knut Dixon, Timothy H. Mei, M. Jeffrey 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. Jeffrey 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 |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7430530/ 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 |
Oceanography (Wash D C) |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7430530/ http://dx.doi.org/10.5670/oceanog.2016.98 |
op_doi |
https://doi.org/10.5670/oceanog.2016.98 |
container_title |
Oceanography |
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29 |
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4 |
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46 |
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61 |
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1766399292149334016 |