The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland
We present changes of the ice margin in Northwest Greenland at the Eastern part of the Nunatarssuaq Ice Cap (NIC) over six decades. The ice margin in this area terminates as a near-vertical ice cliff of between 9 and 33 m thickness. During the years 1954–1957 and in 1965 multi-disciplinary studies w...
Published in: | Journal of Glaciology |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press
2020
|
Subjects: | |
Online Access: | https://doi.org/10.1017/jog.2020.28 https://doaj.org/article/84cc73222fba4ff0a135d4d48d0fc8a4 |
id |
ftdoajarticles:oai:doaj.org/article:84cc73222fba4ff0a135d4d48d0fc8a4 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:84cc73222fba4ff0a135d4d48d0fc8a4 2023-05-15T15:06:57+02:00 The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland Jakob Abermann Jakob F Steiner Rainer Prinz Matthias Wecht Peter Lisager 2020-08-01T00:00:00Z https://doi.org/10.1017/jog.2020.28 https://doaj.org/article/84cc73222fba4ff0a135d4d48d0fc8a4 EN eng Cambridge University Press https://www.cambridge.org/core/product/identifier/S0022143020000283/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2020.28 0022-1430 1727-5652 https://doaj.org/article/84cc73222fba4ff0a135d4d48d0fc8a4 Journal of Glaciology, Vol 66, Pp 567-576 (2020) Arctic glaciology glacier fluctuations glacier mass balance Environmental sciences GE1-350 Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.1017/jog.2020.28 2023-03-12T01:30:57Z We present changes of the ice margin in Northwest Greenland at the Eastern part of the Nunatarssuaq Ice Cap (NIC) over six decades. The ice margin in this area terminates as a near-vertical ice cliff of between 9 and 33 m thickness. During the years 1954–1957 and in 1965 multi-disciplinary studies were performed. We digitise and orthorectify material, that is often difficult to access, in order to use the historical data as an absolute starting point of our change assessment. We compare the cliff morphology of the mid-1950s and the mid-1960s with various time-steps between 1985 and 2017. The studied ice margin remained remarkably constant with very subtle changes of changing sign: rather slow advance rates are reported from the 1950s and 1960s that accelerated until 1985 and were followed by a general retreat until 2012 and a subsequent advance until 2017. Thickness changes are negative throughout the entire time-period, however, different rates of thinning are shown and there is a positive relationship with air temperature anomalies. Compared to similar elevations on the adjacent Greenland ice sheet, we find significantly weaker thinning rates at the NIC. Article in Journal/Newspaper Arctic glacier Greenland Ice cap Ice Sheet Journal of Glaciology Directory of Open Access Journals: DOAJ Articles Arctic Greenland Red Rock ENVELOPE(-54.531,-54.531,49.667,49.667) Journal of Glaciology 66 258 567 576 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Arctic glaciology glacier fluctuations glacier mass balance Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
spellingShingle |
Arctic glaciology glacier fluctuations glacier mass balance Environmental sciences GE1-350 Meteorology. Climatology QC851-999 Jakob Abermann Jakob F Steiner Rainer Prinz Matthias Wecht Peter Lisager The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland |
topic_facet |
Arctic glaciology glacier fluctuations glacier mass balance Environmental sciences GE1-350 Meteorology. Climatology QC851-999 |
description |
We present changes of the ice margin in Northwest Greenland at the Eastern part of the Nunatarssuaq Ice Cap (NIC) over six decades. The ice margin in this area terminates as a near-vertical ice cliff of between 9 and 33 m thickness. During the years 1954–1957 and in 1965 multi-disciplinary studies were performed. We digitise and orthorectify material, that is often difficult to access, in order to use the historical data as an absolute starting point of our change assessment. We compare the cliff morphology of the mid-1950s and the mid-1960s with various time-steps between 1985 and 2017. The studied ice margin remained remarkably constant with very subtle changes of changing sign: rather slow advance rates are reported from the 1950s and 1960s that accelerated until 1985 and were followed by a general retreat until 2012 and a subsequent advance until 2017. Thickness changes are negative throughout the entire time-period, however, different rates of thinning are shown and there is a positive relationship with air temperature anomalies. Compared to similar elevations on the adjacent Greenland ice sheet, we find significantly weaker thinning rates at the NIC. |
format |
Article in Journal/Newspaper |
author |
Jakob Abermann Jakob F Steiner Rainer Prinz Matthias Wecht Peter Lisager |
author_facet |
Jakob Abermann Jakob F Steiner Rainer Prinz Matthias Wecht Peter Lisager |
author_sort |
Jakob Abermann |
title |
The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland |
title_short |
The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland |
title_full |
The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland |
title_fullStr |
The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland |
title_full_unstemmed |
The Red Rock ice cliff revisited – six decades of frontal, mass and area changes in the Nunatarssuaq area, Northwest Greenland |
title_sort |
red rock ice cliff revisited – six decades of frontal, mass and area changes in the nunatarssuaq area, northwest greenland |
publisher |
Cambridge University Press |
publishDate |
2020 |
url |
https://doi.org/10.1017/jog.2020.28 https://doaj.org/article/84cc73222fba4ff0a135d4d48d0fc8a4 |
long_lat |
ENVELOPE(-54.531,-54.531,49.667,49.667) |
geographic |
Arctic Greenland Red Rock |
geographic_facet |
Arctic Greenland Red Rock |
genre |
Arctic glacier Greenland Ice cap Ice Sheet Journal of Glaciology |
genre_facet |
Arctic glacier Greenland Ice cap Ice Sheet Journal of Glaciology |
op_source |
Journal of Glaciology, Vol 66, Pp 567-576 (2020) |
op_relation |
https://www.cambridge.org/core/product/identifier/S0022143020000283/type/journal_article https://doaj.org/toc/0022-1430 https://doaj.org/toc/1727-5652 doi:10.1017/jog.2020.28 0022-1430 1727-5652 https://doaj.org/article/84cc73222fba4ff0a135d4d48d0fc8a4 |
op_doi |
https://doi.org/10.1017/jog.2020.28 |
container_title |
Journal of Glaciology |
container_volume |
66 |
container_issue |
258 |
container_start_page |
567 |
op_container_end_page |
576 |
_version_ |
1766338531735633920 |