Glacimarine sedimentation in Kangerdluk (Disko Fjord), West Greenland, in response to a surging glacier
Beginning in 1995, a large outlet glacier of the Sermersauq Ice Cap on Disko Island surged 10.5 km downvalley to within 10 km of the head of the fjord, Kuannersuit Sulluat, reaching its maximum extent in summer 1999 before beginning to retreat. Sediment discharge to the fjord increased from 13U103 t...
Main Authors: | , , , , |
---|---|
Other Authors: | |
Format: | Text |
Language: | English |
Published: |
2001
|
Subjects: | |
Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.8141 http://geog.queensu.ca/gilbert/surge paper.pdf |
id |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.545.8141 |
---|---|
record_format |
openpolar |
spelling |
ftciteseerx:oai:CiteSeerX.psu:10.1.1.545.8141 2023-05-15T16:21:11+02:00 Glacimarine sedimentation in Kangerdluk (Disko Fjord), West Greenland, in response to a surging glacier Robert Gilbert A Niels Nielsen B Henrik Mo«ller B Joseph R. Desloges C Morten Rasch D The Pennsylvania State University CiteSeerX Archives 2001 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.8141 http://geog.queensu.ca/gilbert/surge paper.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.8141 http://geog.queensu.ca/gilbert/surge paper.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://geog.queensu.ca/gilbert/surge paper.pdf glacimarine sediment fjord Greenland glacier surge text 2001 ftciteseerx 2016-01-08T11:17:06Z Beginning in 1995, a large outlet glacier of the Sermersauq Ice Cap on Disko Island surged 10.5 km downvalley to within 10 km of the head of the fjord, Kuannersuit Sulluat, reaching its maximum extent in summer 1999 before beginning to retreat. Sediment discharge to the fjord increased from 13U103 t day31 in 1997 to 38U103 t day31 in 1999. CTD results, sediment traps and cores from the 2000 melt season document the impact of the surge on the glacimarine environment of the fjord. Within 4 km of the inflow sedimentation rates increased by 30 times over those before the surge, reaching an estimated maximum value of 29 cm a31 (up to 4.2 mm day31 between 24 July and 9 September 2000). Fine-grained deposits from suspension in the water column displayed diurnal laminations in response to the interaction of tidal cycles with the sediment plume; these are not found in the sediments deposited before surging. Thin beds of sandy turbidites from turbidity currents originating from slope failures on the delta front occurred at about 20 day intervals during the melt season. Each of these effects was limited to within several kilometres of the point of inflow, but provide a unique signal significantly different from those generated by normal hydroclimatically induced events. Text glacier Greenland Ice cap Unknown Greenland |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
topic |
glacimarine sediment fjord Greenland glacier surge |
spellingShingle |
glacimarine sediment fjord Greenland glacier surge Robert Gilbert A Niels Nielsen B Henrik Mo«ller B Joseph R. Desloges C Morten Rasch D Glacimarine sedimentation in Kangerdluk (Disko Fjord), West Greenland, in response to a surging glacier |
topic_facet |
glacimarine sediment fjord Greenland glacier surge |
description |
Beginning in 1995, a large outlet glacier of the Sermersauq Ice Cap on Disko Island surged 10.5 km downvalley to within 10 km of the head of the fjord, Kuannersuit Sulluat, reaching its maximum extent in summer 1999 before beginning to retreat. Sediment discharge to the fjord increased from 13U103 t day31 in 1997 to 38U103 t day31 in 1999. CTD results, sediment traps and cores from the 2000 melt season document the impact of the surge on the glacimarine environment of the fjord. Within 4 km of the inflow sedimentation rates increased by 30 times over those before the surge, reaching an estimated maximum value of 29 cm a31 (up to 4.2 mm day31 between 24 July and 9 September 2000). Fine-grained deposits from suspension in the water column displayed diurnal laminations in response to the interaction of tidal cycles with the sediment plume; these are not found in the sediments deposited before surging. Thin beds of sandy turbidites from turbidity currents originating from slope failures on the delta front occurred at about 20 day intervals during the melt season. Each of these effects was limited to within several kilometres of the point of inflow, but provide a unique signal significantly different from those generated by normal hydroclimatically induced events. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Robert Gilbert A Niels Nielsen B Henrik Mo«ller B Joseph R. Desloges C Morten Rasch D |
author_facet |
Robert Gilbert A Niels Nielsen B Henrik Mo«ller B Joseph R. Desloges C Morten Rasch D |
author_sort |
Robert Gilbert A |
title |
Glacimarine sedimentation in Kangerdluk (Disko Fjord), West Greenland, in response to a surging glacier |
title_short |
Glacimarine sedimentation in Kangerdluk (Disko Fjord), West Greenland, in response to a surging glacier |
title_full |
Glacimarine sedimentation in Kangerdluk (Disko Fjord), West Greenland, in response to a surging glacier |
title_fullStr |
Glacimarine sedimentation in Kangerdluk (Disko Fjord), West Greenland, in response to a surging glacier |
title_full_unstemmed |
Glacimarine sedimentation in Kangerdluk (Disko Fjord), West Greenland, in response to a surging glacier |
title_sort |
glacimarine sedimentation in kangerdluk (disko fjord), west greenland, in response to a surging glacier |
publishDate |
2001 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.8141 http://geog.queensu.ca/gilbert/surge paper.pdf |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
glacier Greenland Ice cap |
genre_facet |
glacier Greenland Ice cap |
op_source |
http://geog.queensu.ca/gilbert/surge paper.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.545.8141 http://geog.queensu.ca/gilbert/surge paper.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766009203754795008 |