Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard

This thesis presents a study of the landsystem of the Svalbard tidewater glacier Paulabreen and its late Holocene surge moraines, focusing on the glaciology and the glacial geology. An active surge of Skobreen/Paulabreen was observed and the glacier dynamics and stress regime was studied using satel...

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Bibliographic Details
Published in:Annals of Glaciology
Main Author: Kristensen, Lene
Other Authors: Hanne H Christiansen
Format: Doctoral or Postdoctoral Thesis
Language:English
Published: 2009
Subjects:
landskapsformer permafrost glasiologi isbreer breer morener Svalbard Van Mijenfjorden Paulabreen Skobreen Van Keulenfjorden Rindersbukta Crednermorenen
VDP::450
Bakaninbreen
Crednermorenen
Paulabreen
Rindersbukta
Svalbard
Van Keulenfjorden
Van Mijenfjorden
Annals of Glaciology
glacier
Ice
ice core
permafrost
Tidewater
Online Access:http://hdl.handle.net/10852/12522
http://urn.nb.no/URN:NBN:no-24127
id ftoslouniv:oai:www.duo.uio.no:10852/12522
record_format openpolar
institution Open Polar
collection Universitet i Oslo: Digitale utgivelser ved UiO (DUO)
op_collection_id ftoslouniv
language English
topic landskapsformer permafrost glasiologi isbreer breer morener Svalbard Van Mijenfjorden Paulabreen Skobreen Van Keulenfjorden Rindersbukta Crednermorenen
VDP::450
spellingShingle landskapsformer permafrost glasiologi isbreer breer morener Svalbard Van Mijenfjorden Paulabreen Skobreen Van Keulenfjorden Rindersbukta Crednermorenen
VDP::450
Kristensen, Lene
Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard
topic_facet landskapsformer permafrost glasiologi isbreer breer morener Svalbard Van Mijenfjorden Paulabreen Skobreen Van Keulenfjorden Rindersbukta Crednermorenen
VDP::450
description This thesis presents a study of the landsystem of the Svalbard tidewater glacier Paulabreen and its late Holocene surge moraines, focusing on the glaciology and the glacial geology. An active surge of Skobreen/Paulabreen was observed and the glacier dynamics and stress regime was studied using satellite images, a time-lapse movie and photographs. A persistent subglacial conduit was found beneath the medial moraine between Paulabreen and Bakaninbreen, and we postulate that this constrained surge propagation by preventing the spread of pressurized water beyond the channel. Fresh glacial submarine landforms in front of the glacier were studied and related to known glacier front positions since 1898. An older moraine system deposited around 600 yrs BP was studied, and we found that the terrestrial and submarine landforms were very similar. A mud apron found in both environments was interpreted as pushed marine sediments deposited in a slurry in front of the surging glacier. Hummocky moraine was formed mainly by squeezing of sediments into basal crevasses. While de-icing is almost complete in some parts of the 600 yrs BP moraine, more than 30 m of buried glacier ice is found in a lateral part of the moraine, Crednermorenen. This great variance in the ice-core preservation we attribute to a higher supraglacial sediment content at the glacier margins. Water temperature measurements and modelling work suggest that permafrost, defined solely by temperature, probably exist in Van Mijenfjorden, but we have no evidence that the seabed is frozen.
author2 Hanne H Christiansen
format Doctoral or Postdoctoral Thesis
author Kristensen, Lene
author_facet Kristensen, Lene
author_sort Kristensen, Lene
title Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard
title_short Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard
title_full Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard
title_fullStr Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard
title_full_unstemmed Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard
title_sort glacier surges and landforms in a permafrost environment at the tidewater glacier paulabreen, inner van mijenfjorden, svalbard
publishDate 2009
url http://hdl.handle.net/10852/12522
http://urn.nb.no/URN:NBN:no-24127
long_lat ENVELOPE(17.500,17.500,77.667,77.667)
ENVELOPE(16.800,16.800,77.867,77.867)
ENVELOPE(17.227,17.227,77.755,77.755)
ENVELOPE(16.868,16.868,77.817,77.817)
ENVELOPE(15.489,15.489,77.559,77.559)
ENVELOPE(14.667,14.667,77.717,77.717)
geographic Bakaninbreen
Crednermorenen
Paulabreen
Rindersbukta
Svalbard
Van Keulenfjorden
Van Mijenfjorden
geographic_facet Bakaninbreen
Crednermorenen
Paulabreen
Rindersbukta
Svalbard
Van Keulenfjorden
Van Mijenfjorden
genre Annals of Glaciology
glacier
Ice
ice core
permafrost
Svalbard
Tidewater
Van Keulenfjorden
Van Mijenfjorden
genre_facet Annals of Glaciology
glacier
Ice
ice core
permafrost
Svalbard
Tidewater
Van Keulenfjorden
Van Mijenfjorden
op_relation I. Kristensen, L. & Benn D. I. A surge of Skobreen/Paulabreen, Svalbard documented by a time-lapse movie, aerial and satellite images and photographs. To be submitted to Geosphere. The paper is not available in DUO.
II. Benn, D. I., Kristensen, L. & Gulley, J. D. (2009). Surge propagation constrained by a persistent subglacial conduit, Bakaninbreen-Paulabreen, Svalbard. Annals of Glaciology 50 (52). 81-86, 2009. The paper is not available in DUO. The published version is available at: http://dx.doi.org/10.3189/172756409789624337
III. Ottesen, D., Dowdeswell, J. A., Benn, D. I., Kristensen, L., Christiansen, H. H., Christensen, O., Hansen, L. Lebesbye, E., Forwick, M & Vorren, T. O. (2008). Submarine landforms characteristic of glacier surges in two Spitsbergen fjords. Quaternary Science Reviews 27. 1583-1599, 2008. The paper is not available in DUO. The published version is available at: http://dx.doi.org/10.1016/j.quascirev.2008.05.007
IV. Kristensen, L., Benn, D. I., Hormes, A & Ottesen, D. (2009). Mud aprons in front of Svalbard surge moraines: evidence of subglacial deforming layers or proglacial glaciotectonics? Geomorphology 111. 206-221, 2009. The paper is not available in DUO. The published version is available at: http://dx.doi.org/10.1016/j.geomorph.2009.04.022
V. Kristensen, L., Christiansen, H. H. & Caline, F. (2008). Temperatures in coastal permafrost in the Svea area, Svalbard. Proceedings of the ninth international conference on permafrost, Fairbanks, Alaska. 1005-1010.
VI. Kristensen, L, Juliussen, H. Christiansen, H. H. & Humlum, O. (2009). Structure and composition of a tidewater glacier push moraine, Svalbard, revealed by DC resistivity profiling. Boreas 38. 176-186, 2008. The paper is not available in DUO. The published version is available at: http://dx.doi.org/10.1111/j.1502-3885.2008.00045.x
http://dx.doi.org/10.3189/172756409789624337
http://dx.doi.org/10.1016/j.quascirev.2008.05.007
http://dx.doi.org/10.1016/j.geomorph.2009.04.022
http://dx.doi.org/10.1111/j.1502-3885.2008.00045.x
http://urn.nb.no/URN:NBN:no-24127
Kristensen, Lene. Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard. Doktoravhandling, University of Oslo, 2009
http://hdl.handle.net/10852/12522
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URN:NBN:no-24127
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https://doi.org/10.1016/j.quascirev.2008.05.007
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https://doi.org/10.1111/j.1502-3885.2008.00045.x
container_title Annals of Glaciology
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spelling ftoslouniv:oai:www.duo.uio.no:10852/12522 2023-05-15T13:29:50+02:00 Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard Kristensen, Lene Hanne H Christiansen 2009 http://hdl.handle.net/10852/12522 http://urn.nb.no/URN:NBN:no-24127 eng eng I. Kristensen, L. & Benn D. I. A surge of Skobreen/Paulabreen, Svalbard documented by a time-lapse movie, aerial and satellite images and photographs. To be submitted to Geosphere. The paper is not available in DUO. II. Benn, D. I., Kristensen, L. & Gulley, J. D. (2009). Surge propagation constrained by a persistent subglacial conduit, Bakaninbreen-Paulabreen, Svalbard. Annals of Glaciology 50 (52). 81-86, 2009. The paper is not available in DUO. The published version is available at: http://dx.doi.org/10.3189/172756409789624337 III. Ottesen, D., Dowdeswell, J. A., Benn, D. I., Kristensen, L., Christiansen, H. H., Christensen, O., Hansen, L. Lebesbye, E., Forwick, M & Vorren, T. O. (2008). Submarine landforms characteristic of glacier surges in two Spitsbergen fjords. Quaternary Science Reviews 27. 1583-1599, 2008. The paper is not available in DUO. The published version is available at: http://dx.doi.org/10.1016/j.quascirev.2008.05.007 IV. Kristensen, L., Benn, D. I., Hormes, A & Ottesen, D. (2009). Mud aprons in front of Svalbard surge moraines: evidence of subglacial deforming layers or proglacial glaciotectonics? Geomorphology 111. 206-221, 2009. The paper is not available in DUO. The published version is available at: http://dx.doi.org/10.1016/j.geomorph.2009.04.022 V. Kristensen, L., Christiansen, H. H. & Caline, F. (2008). Temperatures in coastal permafrost in the Svea area, Svalbard. Proceedings of the ninth international conference on permafrost, Fairbanks, Alaska. 1005-1010. VI. Kristensen, L, Juliussen, H. Christiansen, H. H. & Humlum, O. (2009). Structure and composition of a tidewater glacier push moraine, Svalbard, revealed by DC resistivity profiling. Boreas 38. 176-186, 2008. The paper is not available in DUO. The published version is available at: http://dx.doi.org/10.1111/j.1502-3885.2008.00045.x http://dx.doi.org/10.3189/172756409789624337 http://dx.doi.org/10.1016/j.quascirev.2008.05.007 http://dx.doi.org/10.1016/j.geomorph.2009.04.022 http://dx.doi.org/10.1111/j.1502-3885.2008.00045.x http://urn.nb.no/URN:NBN:no-24127 Kristensen, Lene. Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard. Doktoravhandling, University of Oslo, 2009 http://hdl.handle.net/10852/12522 info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft.au=Kristensen, Lene&rft.title=Glacier surges and landforms in a permafrost environment at the tidewater glacier Paulabreen, inner Van Mijenfjorden, Svalbard&rft.inst=University of Oslo&rft.date=2009&rft.degree=Doktoravhandling URN:NBN:no-24127 98862 100257224 Fulltext https://www.duo.uio.no/bitstream/handle/10852/12522/2/Kristensen-publ.pdf landskapsformer permafrost glasiologi isbreer breer morener Svalbard Van Mijenfjorden Paulabreen Skobreen Van Keulenfjorden Rindersbukta Crednermorenen VDP::450 Doctoral thesis Doktoravhandling 2009 ftoslouniv https://doi.org/10.3189/172756409789624337 https://doi.org/10.1016/j.quascirev.2008.05.007 https://doi.org/10.1016/j.geomorph.2009.04.022 https://doi.org/10.1111/j.1502-3885.2008.00045.x 2020-06-21T08:42:07Z This thesis presents a study of the landsystem of the Svalbard tidewater glacier Paulabreen and its late Holocene surge moraines, focusing on the glaciology and the glacial geology. An active surge of Skobreen/Paulabreen was observed and the glacier dynamics and stress regime was studied using satellite images, a time-lapse movie and photographs. A persistent subglacial conduit was found beneath the medial moraine between Paulabreen and Bakaninbreen, and we postulate that this constrained surge propagation by preventing the spread of pressurized water beyond the channel. Fresh glacial submarine landforms in front of the glacier were studied and related to known glacier front positions since 1898. An older moraine system deposited around 600 yrs BP was studied, and we found that the terrestrial and submarine landforms were very similar. A mud apron found in both environments was interpreted as pushed marine sediments deposited in a slurry in front of the surging glacier. Hummocky moraine was formed mainly by squeezing of sediments into basal crevasses. While de-icing is almost complete in some parts of the 600 yrs BP moraine, more than 30 m of buried glacier ice is found in a lateral part of the moraine, Crednermorenen. This great variance in the ice-core preservation we attribute to a higher supraglacial sediment content at the glacier margins. Water temperature measurements and modelling work suggest that permafrost, defined solely by temperature, probably exist in Van Mijenfjorden, but we have no evidence that the seabed is frozen. Doctoral or Postdoctoral Thesis Annals of Glaciology glacier Ice ice core permafrost Svalbard Tidewater Van Keulenfjorden Van Mijenfjorden Universitet i Oslo: Digitale utgivelser ved UiO (DUO) Bakaninbreen ENVELOPE(17.500,17.500,77.667,77.667) Crednermorenen ENVELOPE(16.800,16.800,77.867,77.867) Paulabreen ENVELOPE(17.227,17.227,77.755,77.755) Rindersbukta ENVELOPE(16.868,16.868,77.817,77.817) Svalbard Van Keulenfjorden ENVELOPE(15.489,15.489,77.559,77.559) Van Mijenfjorden ENVELOPE(14.667,14.667,77.717,77.717) Annals of Glaciology 50 52 81 86

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