Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters
Storstrømmen and L. Bistrup Bræ are 20- and 10-km wide, surge type glaciers in North Greenland in quiescent phase that terminate in the southernmost floating ice tongue in East Greenland. Novel multi-beam echo sounding data collected in August 2020 indicate a seabed at 350–400 m depth along a relati...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
AGU (American Geophysical Union)
2022
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/55610/ https://oceanrep.geomar.de/id/eprint/55610/1/Rignot_et_al22_GeophysResLett.pdf https://doi.org/10.1029/2021GL097320 |
id |
ftoceanrep:oai:oceanrep.geomar.de:55610 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:55610 2024-02-11T10:03:23+01:00 Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters Rignot, Eric Bjork, Anders Chauche, Nolwenn Klaucke, Ingo 2022-03-16 text https://oceanrep.geomar.de/id/eprint/55610/ https://oceanrep.geomar.de/id/eprint/55610/1/Rignot_et_al22_GeophysResLett.pdf https://doi.org/10.1029/2021GL097320 en eng AGU (American Geophysical Union) Wiley https://oceanrep.geomar.de/id/eprint/55610/1/Rignot_et_al22_GeophysResLett.pdf Rignot, E., Bjork, A., Chauche, N. and Klaucke, I. (2022) Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters. Open Access Geophysical Research Letters, 49 (5). Art.Nr. e2021GL097320. DOI 10.1029/2021GL097320 <https://doi.org/10.1029/2021GL097320>. doi:10.1029/2021GL097320 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2022 ftoceanrep https://doi.org/10.1029/2021GL097320 2024-01-15T00:25:07Z Storstrømmen and L. Bistrup Bræ are 20- and 10-km wide, surge type glaciers in North Greenland in quiescent phase that terminate in the southernmost floating ice tongue in East Greenland. Novel multi-beam echo sounding data collected in August 2020 indicate a seabed at 350–400 m depth along a relatively uniform ice shelf front, 100 m deeper than expected, but surrounded by shallower terrain (<100 m) over a 30-km wide region that blocks the access of warm, salty, subsurface Atlantic Intermediate Water (AIW) at +1.6°C. Conductivity temperature depth data reveal waters in front of the glaciers at −1.8°C not connected to AIW in the outer fjord, Dove Bugt. The recent grounding line retreat of the glaciers is attributed to glacier thinning at its ablation rate, with little influence of ocean waters, which illustrates the fundamental importance of knowing the bathymetry of glacial fjords. Article in Journal/Newspaper Dove bugt East Greenland glacier Greenland Ice Shelf North Greenland OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Dove Bugt ENVELOPE(-20.407,-20.407,76.712,76.712) Greenland L. Bistrup Bræ ENVELOPE(-23.250,-23.250,76.250,76.250) Geophysical Research Letters 49 5 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
Storstrømmen and L. Bistrup Bræ are 20- and 10-km wide, surge type glaciers in North Greenland in quiescent phase that terminate in the southernmost floating ice tongue in East Greenland. Novel multi-beam echo sounding data collected in August 2020 indicate a seabed at 350–400 m depth along a relatively uniform ice shelf front, 100 m deeper than expected, but surrounded by shallower terrain (<100 m) over a 30-km wide region that blocks the access of warm, salty, subsurface Atlantic Intermediate Water (AIW) at +1.6°C. Conductivity temperature depth data reveal waters in front of the glaciers at −1.8°C not connected to AIW in the outer fjord, Dove Bugt. The recent grounding line retreat of the glaciers is attributed to glacier thinning at its ablation rate, with little influence of ocean waters, which illustrates the fundamental importance of knowing the bathymetry of glacial fjords. |
format |
Article in Journal/Newspaper |
author |
Rignot, Eric Bjork, Anders Chauche, Nolwenn Klaucke, Ingo |
spellingShingle |
Rignot, Eric Bjork, Anders Chauche, Nolwenn Klaucke, Ingo Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters |
author_facet |
Rignot, Eric Bjork, Anders Chauche, Nolwenn Klaucke, Ingo |
author_sort |
Rignot, Eric |
title |
Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters |
title_short |
Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters |
title_full |
Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters |
title_fullStr |
Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters |
title_full_unstemmed |
Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters |
title_sort |
storstrømmen and l. bistrup bræ, north greenland, protected from warm atlantic ocean waters |
publisher |
AGU (American Geophysical Union) |
publishDate |
2022 |
url |
https://oceanrep.geomar.de/id/eprint/55610/ https://oceanrep.geomar.de/id/eprint/55610/1/Rignot_et_al22_GeophysResLett.pdf https://doi.org/10.1029/2021GL097320 |
long_lat |
ENVELOPE(-20.407,-20.407,76.712,76.712) ENVELOPE(-23.250,-23.250,76.250,76.250) |
geographic |
Dove Bugt Greenland L. Bistrup Bræ |
geographic_facet |
Dove Bugt Greenland L. Bistrup Bræ |
genre |
Dove bugt East Greenland glacier Greenland Ice Shelf North Greenland |
genre_facet |
Dove bugt East Greenland glacier Greenland Ice Shelf North Greenland |
op_relation |
https://oceanrep.geomar.de/id/eprint/55610/1/Rignot_et_al22_GeophysResLett.pdf Rignot, E., Bjork, A., Chauche, N. and Klaucke, I. (2022) Storstrømmen and L. Bistrup Bræ, North Greenland, Protected From Warm Atlantic Ocean Waters. Open Access Geophysical Research Letters, 49 (5). Art.Nr. e2021GL097320. DOI 10.1029/2021GL097320 <https://doi.org/10.1029/2021GL097320>. doi:10.1029/2021GL097320 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1029/2021GL097320 |
container_title |
Geophysical Research Letters |
container_volume |
49 |
container_issue |
5 |
_version_ |
1790599609911869440 |