The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island
ABSTRACT The drift of Hobson's Choice Ice Island from the Arctic Ocean into the channels of the Queen Elizabeth Islands, Northwest Territories, Canadian Arctic, between February 1988 and August 1992, was monitored by a Système Argos satellite-positioning buoy. During the period August 1991 to M...
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crcambridgeupr:10.1017/s0032247400023950 2024-03-03T08:40:12+00:00 The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island Jeffries, Martin O. Shaw, M. Amanda 1993 http://dx.doi.org/10.1017/s0032247400023950 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400023950 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Polar Record volume 29, issue 171, page 305-312 ISSN 0032-2474 1475-3057 General Earth and Planetary Sciences Ecology Geography, Planning and Development journal-article 1993 crcambridgeupr https://doi.org/10.1017/s0032247400023950 2024-02-08T08:38:04Z ABSTRACT The drift of Hobson's Choice Ice Island from the Arctic Ocean into the channels of the Queen Elizabeth Islands, Northwest Territories, Canadian Arctic, between February 1988 and August 1992, was monitored by a Système Argos satellite-positioning buoy. During the period August 1991 to May 1992, the ice island was imaged by synthetic aperture radar (SAR) aboard the ERS-1 satellite. The buoy data show that Hobson's Choice entered Peary Channel (between Axel Heiberg Island and Ellef Ringnes Island) in October 1988. Subsequently, between mid-August 1991 and November 1991, it drifted rapidly south to Queens Channel (60 km north of Cornwallis Island). The SAR data corroborate the buoy data and also reveal that at least six other ice islands entered the Queen Elizabeth Islands' channels with Hobson's Choice. The SAR imagery also recorded the fragmentation of Hobson's Choice between mid-October and mid-November 1991. The buoy and SAR data are conclusive evidence that ice islands do leave the Arctic Ocean via the northwestern channels of the Canadian Arctic archipelago. The observed drift occurred when there was extensive break-up of fast ice in the inter-island channels caused by above average summer temperatures, in combination with favourable atmospheric circulation and surface winds that drove the ice islands into and through the channels. Article in Journal/Newspaper Arctic Archipelago Arctic Arctic Ocean Axel Heiberg Island Canadian Arctic Archipelago Cornwallis Island Ellef Ringnes Island Northwest Territories Polar Record Queen Elizabeth Islands Cambridge University Press Arctic Arctic Ocean Northwest Territories Canadian Arctic Archipelago Peary ENVELOPE(-63.867,-63.867,-65.250,-65.250) Heiberg ENVELOPE(13.964,13.964,66.424,66.424) Axel Heiberg Island ENVELOPE(-91.001,-91.001,79.752,79.752) Cornwallis ENVELOPE(-54.464,-54.464,-61.072,-61.072) Ellef Ringnes Island ENVELOPE(-102.256,-102.256,78.502,78.502) Queens Channel ENVELOPE(-96.002,-96.002,76.185,76.185) Peary Channel ENVELOPE(-101.504,-101.504,79.669,79.669) Cornwallis Island ENVELOPE(-95.001,-95.001,75.135,75.135) Polar Record 29 171 305 312 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
General Earth and Planetary Sciences Ecology Geography, Planning and Development |
spellingShingle |
General Earth and Planetary Sciences Ecology Geography, Planning and Development Jeffries, Martin O. Shaw, M. Amanda The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island |
topic_facet |
General Earth and Planetary Sciences Ecology Geography, Planning and Development |
description |
ABSTRACT The drift of Hobson's Choice Ice Island from the Arctic Ocean into the channels of the Queen Elizabeth Islands, Northwest Territories, Canadian Arctic, between February 1988 and August 1992, was monitored by a Système Argos satellite-positioning buoy. During the period August 1991 to May 1992, the ice island was imaged by synthetic aperture radar (SAR) aboard the ERS-1 satellite. The buoy data show that Hobson's Choice entered Peary Channel (between Axel Heiberg Island and Ellef Ringnes Island) in October 1988. Subsequently, between mid-August 1991 and November 1991, it drifted rapidly south to Queens Channel (60 km north of Cornwallis Island). The SAR data corroborate the buoy data and also reveal that at least six other ice islands entered the Queen Elizabeth Islands' channels with Hobson's Choice. The SAR imagery also recorded the fragmentation of Hobson's Choice between mid-October and mid-November 1991. The buoy and SAR data are conclusive evidence that ice islands do leave the Arctic Ocean via the northwestern channels of the Canadian Arctic archipelago. The observed drift occurred when there was extensive break-up of fast ice in the inter-island channels caused by above average summer temperatures, in combination with favourable atmospheric circulation and surface winds that drove the ice islands into and through the channels. |
format |
Article in Journal/Newspaper |
author |
Jeffries, Martin O. Shaw, M. Amanda |
author_facet |
Jeffries, Martin O. Shaw, M. Amanda |
author_sort |
Jeffries, Martin O. |
title |
The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island |
title_short |
The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island |
title_full |
The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island |
title_fullStr |
The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island |
title_full_unstemmed |
The drift of ice islands from the Arctic Ocean into the channels of the Canadian Arctic archipelago: the history of Hobson's Choice Ice Island |
title_sort |
drift of ice islands from the arctic ocean into the channels of the canadian arctic archipelago: the history of hobson's choice ice island |
publisher |
Cambridge University Press (CUP) |
publishDate |
1993 |
url |
http://dx.doi.org/10.1017/s0032247400023950 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0032247400023950 |
long_lat |
ENVELOPE(-63.867,-63.867,-65.250,-65.250) ENVELOPE(13.964,13.964,66.424,66.424) ENVELOPE(-91.001,-91.001,79.752,79.752) ENVELOPE(-54.464,-54.464,-61.072,-61.072) ENVELOPE(-102.256,-102.256,78.502,78.502) ENVELOPE(-96.002,-96.002,76.185,76.185) ENVELOPE(-101.504,-101.504,79.669,79.669) ENVELOPE(-95.001,-95.001,75.135,75.135) |
geographic |
Arctic Arctic Ocean Northwest Territories Canadian Arctic Archipelago Peary Heiberg Axel Heiberg Island Cornwallis Ellef Ringnes Island Queens Channel Peary Channel Cornwallis Island |
geographic_facet |
Arctic Arctic Ocean Northwest Territories Canadian Arctic Archipelago Peary Heiberg Axel Heiberg Island Cornwallis Ellef Ringnes Island Queens Channel Peary Channel Cornwallis Island |
genre |
Arctic Archipelago Arctic Arctic Ocean Axel Heiberg Island Canadian Arctic Archipelago Cornwallis Island Ellef Ringnes Island Northwest Territories Polar Record Queen Elizabeth Islands |
genre_facet |
Arctic Archipelago Arctic Arctic Ocean Axel Heiberg Island Canadian Arctic Archipelago Cornwallis Island Ellef Ringnes Island Northwest Territories Polar Record Queen Elizabeth Islands |
op_source |
Polar Record volume 29, issue 171, page 305-312 ISSN 0032-2474 1475-3057 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0032247400023950 |
container_title |
Polar Record |
container_volume |
29 |
container_issue |
171 |
container_start_page |
305 |
op_container_end_page |
312 |
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1792495983564685312 |