Rock Glacier Distribution, Activity and Movement, Northern Absaroka and Beartooth Ranges, MT, USA
Rock glaciers of the northern Absaroka and Beartooth Ranges have not previously been described. Six-hundred and sixty rock glaciers were hand digitized in a GIS and evaluated using 11 distributional characteristics. Beartooth rock glaciers were found to occur at higher elevations, receive more preci...
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University of Montana
2009
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ftunivmontana:oai:scholarworks.umt.edu:etd-1863 2023-07-16T04:00:28+02:00 Rock Glacier Distribution, Activity and Movement, Northern Absaroka and Beartooth Ranges, MT, USA Seligman, Zachary M 2009-01-01T08:00:00Z application/pdf https://scholarworks.umt.edu/etd/844 https://scholarworks.umt.edu/context/etd/article/1863/viewcontent/Seligman_Zachary_Thesis.pdf unknown University of Montana https://scholarworks.umt.edu/etd/844 https://scholarworks.umt.edu/context/etd/article/1863/viewcontent/Seligman_Zachary_Thesis.pdf ©2009 Zachary M Seligman Graduate Student Theses, Dissertations, & Professional Papers Absaroka Beartooth Climate Permafrost Rock Glacier thesis 2009 ftunivmontana 2023-06-27T22:39:25Z Rock glaciers of the northern Absaroka and Beartooth Ranges have not previously been described. Six-hundred and sixty rock glaciers were hand digitized in a GIS and evaluated using 11 distributional characteristics. Beartooth rock glaciers were found to occur at higher elevations, receive more precipitation, and were subjected to colder temperatures. Additionally, logistic regression analysis was used to examine the predictive strength of the 11 descriptive parameters on rock-glacier activity. Elevation and average annual maximum temperatures were most strongly correlated with activity. Results were used to make inferences about permafrost distribution which coincided with estimates from previous studies. Finally, movement rates of four rock glaciers within the Black Canyon Basin of the Beartooth Mountains were estimated using photogrammetric techniques over a 51-year period. While movement rates were consistent with those determined in other Rocky Mountain locations, much of the results were inconclusive. Increased movement of the East Grasshopper rock glacier may be the result of increased glacier subsidence, while ‘uphill’ movement of the Beartooth rock glacier may be indicative of rock-glacier subsidence. View the dataset associated with this thesis. Read the 2019 article associated with this thesis. Thesis permafrost University of Montana: ScholarWorks Black Canyon ENVELOPE(-124.203,-124.203,56.017,56.017) |
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Open Polar |
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University of Montana: ScholarWorks |
op_collection_id |
ftunivmontana |
language |
unknown |
topic |
Absaroka Beartooth Climate Permafrost Rock Glacier |
spellingShingle |
Absaroka Beartooth Climate Permafrost Rock Glacier Seligman, Zachary M Rock Glacier Distribution, Activity and Movement, Northern Absaroka and Beartooth Ranges, MT, USA |
topic_facet |
Absaroka Beartooth Climate Permafrost Rock Glacier |
description |
Rock glaciers of the northern Absaroka and Beartooth Ranges have not previously been described. Six-hundred and sixty rock glaciers were hand digitized in a GIS and evaluated using 11 distributional characteristics. Beartooth rock glaciers were found to occur at higher elevations, receive more precipitation, and were subjected to colder temperatures. Additionally, logistic regression analysis was used to examine the predictive strength of the 11 descriptive parameters on rock-glacier activity. Elevation and average annual maximum temperatures were most strongly correlated with activity. Results were used to make inferences about permafrost distribution which coincided with estimates from previous studies. Finally, movement rates of four rock glaciers within the Black Canyon Basin of the Beartooth Mountains were estimated using photogrammetric techniques over a 51-year period. While movement rates were consistent with those determined in other Rocky Mountain locations, much of the results were inconclusive. Increased movement of the East Grasshopper rock glacier may be the result of increased glacier subsidence, while ‘uphill’ movement of the Beartooth rock glacier may be indicative of rock-glacier subsidence. View the dataset associated with this thesis. Read the 2019 article associated with this thesis. |
format |
Thesis |
author |
Seligman, Zachary M |
author_facet |
Seligman, Zachary M |
author_sort |
Seligman, Zachary M |
title |
Rock Glacier Distribution, Activity and Movement, Northern Absaroka and Beartooth Ranges, MT, USA |
title_short |
Rock Glacier Distribution, Activity and Movement, Northern Absaroka and Beartooth Ranges, MT, USA |
title_full |
Rock Glacier Distribution, Activity and Movement, Northern Absaroka and Beartooth Ranges, MT, USA |
title_fullStr |
Rock Glacier Distribution, Activity and Movement, Northern Absaroka and Beartooth Ranges, MT, USA |
title_full_unstemmed |
Rock Glacier Distribution, Activity and Movement, Northern Absaroka and Beartooth Ranges, MT, USA |
title_sort |
rock glacier distribution, activity and movement, northern absaroka and beartooth ranges, mt, usa |
publisher |
University of Montana |
publishDate |
2009 |
url |
https://scholarworks.umt.edu/etd/844 https://scholarworks.umt.edu/context/etd/article/1863/viewcontent/Seligman_Zachary_Thesis.pdf |
long_lat |
ENVELOPE(-124.203,-124.203,56.017,56.017) |
geographic |
Black Canyon |
geographic_facet |
Black Canyon |
genre |
permafrost |
genre_facet |
permafrost |
op_source |
Graduate Student Theses, Dissertations, & Professional Papers |
op_relation |
https://scholarworks.umt.edu/etd/844 https://scholarworks.umt.edu/context/etd/article/1863/viewcontent/Seligman_Zachary_Thesis.pdf |
op_rights |
©2009 Zachary M Seligman |
_version_ |
1771549269725020160 |