Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion
As the Circumpolar Arctic continues to undergo strong environmental change - such as increased annual temperatures and decreased sea ice cover - natural disturbances are occurring at frequencies and magnitudes never before recorded (Chapin et al. 2000; Manson and Solomon 2007; Shaver and Kummerow 19...
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ftunivcalgary:oai:prism.ucalgary.ca:11023/518 2023-08-27T04:07:26+02:00 Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion LAPKA, STEPHANIE Moorman, Brian 2013 application/pdf http://hdl.handle.net/11023/518 https://doi.org/10.11575/PRISM/27163 eng eng Graduate Studies University of Calgary Calgary LAPKA, STEPHANIE. (2013). Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/27163 http://dx.doi.org/10.11575/PRISM/27163 http://hdl.handle.net/11023/518 University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. Physical Geography Remote Sensing Mackenzie Delta Storm surge saline intrusion master thesis 2013 ftunivcalgary https://doi.org/10.11575/PRISM/27163 2023-08-06T06:21:10Z As the Circumpolar Arctic continues to undergo strong environmental change - such as increased annual temperatures and decreased sea ice cover - natural disturbances are occurring at frequencies and magnitudes never before recorded (Chapin et al. 2000; Manson and Solomon 2007; Shaver and Kummerow 1992). Coastlines and low-lying terrain have been predicted to be among the environments most susceptible to disturbance events, especially within the western Canadian Arctic (Forbes 2011; Lantuit et al. 2011). In September 1999, an oceanic storm surge occurred over the alluvial islands of the outer Mackenzie Delta, NWT Canada. The salt water incursion killed more than 250 km2 of freshwater tundra. Over a decade later, dead vegetation remains the dominant land cover for more than one quarter of the impacted region. Dynamic retrospective studies such as the one conducted here are important tools for properly monitoring current processes and forecasting future impacts within Arctic landscapes (Hilbert 2006). Landsat imagery has provided the data needed to perform an ecological assessment distinctive from almost all vegetation-based studies conducted within the Circumpolar Arctic to date. Completed within this thesis is a land cover map time series with close to annual coverage between 1972 and 2010 of the alluvial islands in the outer Mackenzie Delta, as well as the first landscape-level vegetation recovery assessment of the area from the largest oceanic storm surge event to have occurred there in the past 1,000 years. Master Thesis Arctic Mackenzie Delta Sea ice Tundra PRISM - University of Calgary Digital Repository Arctic Canada Forbes ENVELOPE(-66.550,-66.550,-67.783,-67.783) Mackenzie Delta ENVELOPE(-136.672,-136.672,68.833,68.833) |
institution |
Open Polar |
collection |
PRISM - University of Calgary Digital Repository |
op_collection_id |
ftunivcalgary |
language |
English |
topic |
Physical Geography Remote Sensing Mackenzie Delta Storm surge saline intrusion |
spellingShingle |
Physical Geography Remote Sensing Mackenzie Delta Storm surge saline intrusion LAPKA, STEPHANIE Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion |
topic_facet |
Physical Geography Remote Sensing Mackenzie Delta Storm surge saline intrusion |
description |
As the Circumpolar Arctic continues to undergo strong environmental change - such as increased annual temperatures and decreased sea ice cover - natural disturbances are occurring at frequencies and magnitudes never before recorded (Chapin et al. 2000; Manson and Solomon 2007; Shaver and Kummerow 1992). Coastlines and low-lying terrain have been predicted to be among the environments most susceptible to disturbance events, especially within the western Canadian Arctic (Forbes 2011; Lantuit et al. 2011). In September 1999, an oceanic storm surge occurred over the alluvial islands of the outer Mackenzie Delta, NWT Canada. The salt water incursion killed more than 250 km2 of freshwater tundra. Over a decade later, dead vegetation remains the dominant land cover for more than one quarter of the impacted region. Dynamic retrospective studies such as the one conducted here are important tools for properly monitoring current processes and forecasting future impacts within Arctic landscapes (Hilbert 2006). Landsat imagery has provided the data needed to perform an ecological assessment distinctive from almost all vegetation-based studies conducted within the Circumpolar Arctic to date. Completed within this thesis is a land cover map time series with close to annual coverage between 1972 and 2010 of the alluvial islands in the outer Mackenzie Delta, as well as the first landscape-level vegetation recovery assessment of the area from the largest oceanic storm surge event to have occurred there in the past 1,000 years. |
author2 |
Moorman, Brian |
format |
Master Thesis |
author |
LAPKA, STEPHANIE |
author_facet |
LAPKA, STEPHANIE |
author_sort |
LAPKA, STEPHANIE |
title |
Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion |
title_short |
Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion |
title_full |
Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion |
title_fullStr |
Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion |
title_full_unstemmed |
Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion |
title_sort |
oceanic storm surges in the outer mackenzie delta, nwt canada: remote sensing of tundra disturbance and restoration from saline intrusion |
publisher |
Graduate Studies |
publishDate |
2013 |
url |
http://hdl.handle.net/11023/518 https://doi.org/10.11575/PRISM/27163 |
long_lat |
ENVELOPE(-66.550,-66.550,-67.783,-67.783) ENVELOPE(-136.672,-136.672,68.833,68.833) |
geographic |
Arctic Canada Forbes Mackenzie Delta |
geographic_facet |
Arctic Canada Forbes Mackenzie Delta |
genre |
Arctic Mackenzie Delta Sea ice Tundra |
genre_facet |
Arctic Mackenzie Delta Sea ice Tundra |
op_relation |
LAPKA, STEPHANIE. (2013). Oceanic storm surges in the outer Mackenzie Delta, NWT Canada: Remote Sensing of tundra disturbance and restoration from saline intrusion (Unpublished master's thesis). University of Calgary, Calgary, AB. doi:10.11575/PRISM/27163 http://dx.doi.org/10.11575/PRISM/27163 http://hdl.handle.net/11023/518 |
op_rights |
University of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission. |
op_doi |
https://doi.org/10.11575/PRISM/27163 |
_version_ |
1775348208929603584 |