Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations
This is the published version, also available here: http://dx.doi.org/10.1029/98GL01973. Early 1960's reconnaissance satellite images are compared to more recent image and map data in an interannual and seasonal study of West Central Greenland margin fluctuations. From 1962 to 1992, ice sheet m...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
American Geophysical Union
2015
|
Subjects: | |
Online Access: | http://hdl.handle.net/1808/17340 https://doi.org/10.1029/98GL01973 |
id |
ftunivkansas:oai:kuscholarworks.ku.edu:1808/17340 |
---|---|
record_format |
openpolar |
spelling |
ftunivkansas:oai:kuscholarworks.ku.edu:1808/17340 2023-05-15T16:21:00+02:00 Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations Sohn, Hong-Gyoo Jezek, Kenneth C. van der Veen, Cornelis J. 2015-04-08T19:52:42Z http://hdl.handle.net/1808/17340 https://doi.org/10.1029/98GL01973 unknown American Geophysical Union Sohn, Hong-Gyoo., Jezek, Kenneth C., Van Der Veen, C. J. "Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations." Geophysical Research Letters (1998) Volume 25, Issue 14, pages 2699–2702, 15 July 1998. http://dx.doi.org/10.1029/98GL01973. http://hdl.handle.net/1808/17340 doi:10.1029/98GL01973 openAccess Article 2015 ftunivkansas https://doi.org/10.1029/98GL01973 2022-08-26T13:16:46Z This is the published version, also available here: http://dx.doi.org/10.1029/98GL01973. Early 1960's reconnaissance satellite images are compared to more recent image and map data in an interannual and seasonal study of West Central Greenland margin fluctuations. From 1962 to 1992, ice sheet margins to the north and south of Jakobshavn Glacier retreated despite a decline in average summer temperatures. The retreat may be reversing along the southern flank of the ice stream where regional mass balance estimates are positive. From 1950 to 1996, the terminus of Jakobshavn Glacier seasonally fluctuated ∼2.5 km around its annual mean position. The total calving flux during the summer is more than six times that during winter. We identified that summer melting and the break-up of sea ice and icebergs in the fjord are important in controlling the rate of iceberg production. If correct, calving rates may be expected to increase should climate become warmer in the near future. Article in Journal/Newspaper glacier Greenland Ice Sheet Jakobshavn Sea ice The University of Kansas: KU ScholarWorks Greenland Geophysical Research Letters 25 14 2699 2702 |
institution |
Open Polar |
collection |
The University of Kansas: KU ScholarWorks |
op_collection_id |
ftunivkansas |
language |
unknown |
description |
This is the published version, also available here: http://dx.doi.org/10.1029/98GL01973. Early 1960's reconnaissance satellite images are compared to more recent image and map data in an interannual and seasonal study of West Central Greenland margin fluctuations. From 1962 to 1992, ice sheet margins to the north and south of Jakobshavn Glacier retreated despite a decline in average summer temperatures. The retreat may be reversing along the southern flank of the ice stream where regional mass balance estimates are positive. From 1950 to 1996, the terminus of Jakobshavn Glacier seasonally fluctuated ∼2.5 km around its annual mean position. The total calving flux during the summer is more than six times that during winter. We identified that summer melting and the break-up of sea ice and icebergs in the fjord are important in controlling the rate of iceberg production. If correct, calving rates may be expected to increase should climate become warmer in the near future. |
format |
Article in Journal/Newspaper |
author |
Sohn, Hong-Gyoo Jezek, Kenneth C. van der Veen, Cornelis J. |
spellingShingle |
Sohn, Hong-Gyoo Jezek, Kenneth C. van der Veen, Cornelis J. Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations |
author_facet |
Sohn, Hong-Gyoo Jezek, Kenneth C. van der Veen, Cornelis J. |
author_sort |
Sohn, Hong-Gyoo |
title |
Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations |
title_short |
Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations |
title_full |
Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations |
title_fullStr |
Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations |
title_full_unstemmed |
Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations |
title_sort |
jakobshavn glacier, west greenland: 30 years of spaceborne observations |
publisher |
American Geophysical Union |
publishDate |
2015 |
url |
http://hdl.handle.net/1808/17340 https://doi.org/10.1029/98GL01973 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice Sheet Jakobshavn Sea ice |
genre_facet |
glacier Greenland Ice Sheet Jakobshavn Sea ice |
op_relation |
Sohn, Hong-Gyoo., Jezek, Kenneth C., Van Der Veen, C. J. "Jakobshavn Glacier, west Greenland: 30 years of spaceborne observations." Geophysical Research Letters (1998) Volume 25, Issue 14, pages 2699–2702, 15 July 1998. http://dx.doi.org/10.1029/98GL01973. http://hdl.handle.net/1808/17340 doi:10.1029/98GL01973 |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1029/98GL01973 |
container_title |
Geophysical Research Letters |
container_volume |
25 |
container_issue |
14 |
container_start_page |
2699 |
op_container_end_page |
2702 |
_version_ |
1766009015344562176 |