Flow obstructions in valley glaciers
ix, 149 leaves : ill. 29 cm. Valley glaciers often occur within complex dendritic systems where tributary glaciers contribute ice mass and blocking potential to the trunk glacier. Analysis of glacier inventories and maps in the regions of Svalbard, East Greenland, Yukon Territory and the Thompson Gl...
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2007
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ftunivlethb:oai:opus.uleth.ca:10133/654 2023-05-15T16:03:45+02:00 Flow obstructions in valley glaciers Caruso, Raven University of Lethbridge. Faculty of Arts and Science Jiskoot, Hester 2007 application/pdf https://hdl.handle.net/10133/654 en_US eng Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2007 Arts and Science Department of Geography Thesis (University of Lethbridge. Faculty of Arts and Science) https://hdl.handle.net/10133/654 Dissertations Academic Glaciers -- Yukon Territory Thesis 2007 ftunivlethb 2021-06-27T07:19:49Z ix, 149 leaves : ill. 29 cm. Valley glaciers often occur within complex dendritic systems where tributary glaciers contribute ice mass and blocking potential to the trunk glacier. Analysis of glacier inventories and maps in the regions of Svalbard, East Greenland, Yukon Territory and the Thompson Glacier system indicates that trunk - tributary intersections commonly occur at angles between 45° and 90°. An analogue material with flow properties similar to creep in pure ice has been used to simulate flow in a model valley glacier. The model and a series of blockages were constructed based on dimensions derived from the inventory and map analysis. The angled blockage indicates lower overall velocity rates and appears to have a funnelling rather than blocking affect on the analogue material. The perpendicular obstruction that blocked half the width of the model valley caused a piling up of analogue material prior to a release into the unobstructed side of the valley. Thesis East Greenland glacier glacier Greenland Svalbard Yukon University of Lethbridge Institutional Repository Greenland Svalbard Thompson Glacier ENVELOPE(-90.501,-90.501,79.469,79.469) Yukon |
institution |
Open Polar |
collection |
University of Lethbridge Institutional Repository |
op_collection_id |
ftunivlethb |
language |
English |
topic |
Dissertations Academic Glaciers -- Yukon Territory |
spellingShingle |
Dissertations Academic Glaciers -- Yukon Territory Caruso, Raven University of Lethbridge. Faculty of Arts and Science Flow obstructions in valley glaciers |
topic_facet |
Dissertations Academic Glaciers -- Yukon Territory |
description |
ix, 149 leaves : ill. 29 cm. Valley glaciers often occur within complex dendritic systems where tributary glaciers contribute ice mass and blocking potential to the trunk glacier. Analysis of glacier inventories and maps in the regions of Svalbard, East Greenland, Yukon Territory and the Thompson Glacier system indicates that trunk - tributary intersections commonly occur at angles between 45° and 90°. An analogue material with flow properties similar to creep in pure ice has been used to simulate flow in a model valley glacier. The model and a series of blockages were constructed based on dimensions derived from the inventory and map analysis. The angled blockage indicates lower overall velocity rates and appears to have a funnelling rather than blocking affect on the analogue material. The perpendicular obstruction that blocked half the width of the model valley caused a piling up of analogue material prior to a release into the unobstructed side of the valley. |
author2 |
Jiskoot, Hester |
format |
Thesis |
author |
Caruso, Raven University of Lethbridge. Faculty of Arts and Science |
author_facet |
Caruso, Raven University of Lethbridge. Faculty of Arts and Science |
author_sort |
Caruso, Raven |
title |
Flow obstructions in valley glaciers |
title_short |
Flow obstructions in valley glaciers |
title_full |
Flow obstructions in valley glaciers |
title_fullStr |
Flow obstructions in valley glaciers |
title_full_unstemmed |
Flow obstructions in valley glaciers |
title_sort |
flow obstructions in valley glaciers |
publisher |
Lethbridge, Alta. : University of Lethbridge, Faculty of Arts and Science, 2007 |
publishDate |
2007 |
url |
https://hdl.handle.net/10133/654 |
long_lat |
ENVELOPE(-90.501,-90.501,79.469,79.469) |
geographic |
Greenland Svalbard Thompson Glacier Yukon |
geographic_facet |
Greenland Svalbard Thompson Glacier Yukon |
genre |
East Greenland glacier glacier Greenland Svalbard Yukon |
genre_facet |
East Greenland glacier glacier Greenland Svalbard Yukon |
op_relation |
Thesis (University of Lethbridge. Faculty of Arts and Science) https://hdl.handle.net/10133/654 |
_version_ |
1766399436415565824 |