Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology
Subarctic glacierized catchments are complex hydrological systems of paramount importance not only for water resources management but also for various ecosystem services. They are environmentally fragile and exert a high sensitivity to changes in climatic forcing. Several studies indicated the hydro...
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École de technologie supérieure
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ftecolets:oai:espace.etsmtl.ca:2526 2023-09-05T13:19:39+02:00 Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology Chesnokova, Anna 2020-05-01 application/pdf https://espace.etsmtl.ca/id/eprint/2526/ https://espace.etsmtl.ca/id/eprint/2526/1/CHESNOKOVA_Anna.pdf https://espace.etsmtl.ca/id/eprint/2526/2/CHESNOKOVA_Anna-web.pdf en eng École de technologie supérieure https://espace.etsmtl.ca/id/eprint/2526/1/CHESNOKOVA_Anna.pdf https://espace.etsmtl.ca/id/eprint/2526/2/CHESNOKOVA_Anna-web.pdf Chesnokova, Anna (2020). Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology. Thèse de doctorat électronique, Montréal, École de technologie supérieure. subarctique changements climatiques bassins versants glaciaires hydrologie nordique Mémoire ou thèse Non évalué par les pairs 2020 ftecolets 2023-08-23T06:11:09Z Subarctic glacierized catchments are complex hydrological systems of paramount importance not only for water resources management but also for various ecosystem services. They are environmentally fragile and exert a high sensitivity to changes in climatic forcing. Several studies indicated the hydrological importance of the non-glacierized portions of these watersheds by illustrating the potential water storage capacity and runoff production of their proglacial areas. However, on a watershed scale, the hydrological role of every single component other than glaciers is not yet well understood. I hypothesized that subarctic proglacial areas play an important role in the glacierized watersheds hydrology and that glacier retreat does not entirely define their hydrological response to climate change. Hence, to accurately project the response of subarctic glacierized catchments to environmental changes, it is necessary to better understand and quantify the contribution of each hydrological component in runoff production. The primary objective of this project is thus to improve the knowledge necessary to project the impact of environmental changes on the hydrology of subarctic regions by (i) isolating and quantifying the role of shrinking glaciers in recent hydrological changes in the southwestern Yukon as well as estimating future hydrological changes in the region, (ii) disentangling the importance of various hydrological components to the total summer runoff in the headwaters of a subarctic glacierized watershed, and (iii) analyzing the genesis of icings to obtain new insights into the generation of winter baseflow and winter hydrological processes in the headwaters of subarctic glacierized watersheds of different complexity. To achieve these objectives, three summer field campaigns in a glacierized watershed of the St. Elias Mountains, Yukon, Canada, were conducted. The data collected were complemented with laboratory activities, statistical analyses, and remote sensing. Due to the high hydrological complexity met ... Article in Journal/Newspaper glacier* Subarctic subarctique* Yukon École de technologie supérieure, Montréal: Espace ÉTS Canada Yukon |
institution |
Open Polar |
collection |
École de technologie supérieure, Montréal: Espace ÉTS |
op_collection_id |
ftecolets |
language |
English |
topic |
subarctique changements climatiques bassins versants glaciaires hydrologie nordique |
spellingShingle |
subarctique changements climatiques bassins versants glaciaires hydrologie nordique Chesnokova, Anna Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology |
topic_facet |
subarctique changements climatiques bassins versants glaciaires hydrologie nordique |
description |
Subarctic glacierized catchments are complex hydrological systems of paramount importance not only for water resources management but also for various ecosystem services. They are environmentally fragile and exert a high sensitivity to changes in climatic forcing. Several studies indicated the hydrological importance of the non-glacierized portions of these watersheds by illustrating the potential water storage capacity and runoff production of their proglacial areas. However, on a watershed scale, the hydrological role of every single component other than glaciers is not yet well understood. I hypothesized that subarctic proglacial areas play an important role in the glacierized watersheds hydrology and that glacier retreat does not entirely define their hydrological response to climate change. Hence, to accurately project the response of subarctic glacierized catchments to environmental changes, it is necessary to better understand and quantify the contribution of each hydrological component in runoff production. The primary objective of this project is thus to improve the knowledge necessary to project the impact of environmental changes on the hydrology of subarctic regions by (i) isolating and quantifying the role of shrinking glaciers in recent hydrological changes in the southwestern Yukon as well as estimating future hydrological changes in the region, (ii) disentangling the importance of various hydrological components to the total summer runoff in the headwaters of a subarctic glacierized watershed, and (iii) analyzing the genesis of icings to obtain new insights into the generation of winter baseflow and winter hydrological processes in the headwaters of subarctic glacierized watersheds of different complexity. To achieve these objectives, three summer field campaigns in a glacierized watershed of the St. Elias Mountains, Yukon, Canada, were conducted. The data collected were complemented with laboratory activities, statistical analyses, and remote sensing. Due to the high hydrological complexity met ... |
format |
Article in Journal/Newspaper |
author |
Chesnokova, Anna |
author_facet |
Chesnokova, Anna |
author_sort |
Chesnokova, Anna |
title |
Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology |
title_short |
Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology |
title_full |
Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology |
title_fullStr |
Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology |
title_full_unstemmed |
Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology |
title_sort |
multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology |
publisher |
École de technologie supérieure |
publishDate |
2020 |
url |
https://espace.etsmtl.ca/id/eprint/2526/ https://espace.etsmtl.ca/id/eprint/2526/1/CHESNOKOVA_Anna.pdf https://espace.etsmtl.ca/id/eprint/2526/2/CHESNOKOVA_Anna-web.pdf |
geographic |
Canada Yukon |
geographic_facet |
Canada Yukon |
genre |
glacier* Subarctic subarctique* Yukon |
genre_facet |
glacier* Subarctic subarctique* Yukon |
op_relation |
https://espace.etsmtl.ca/id/eprint/2526/1/CHESNOKOVA_Anna.pdf https://espace.etsmtl.ca/id/eprint/2526/2/CHESNOKOVA_Anna-web.pdf Chesnokova, Anna (2020). Multi-scale assessment of environmental changes impact on subarctic glacierized watersheds hydrology. Thèse de doctorat électronique, Montréal, École de technologie supérieure. |
_version_ |
1776200451245473792 |