Permafrost landscapes and freshwater systems in a changing North : towards an integrated understanding
Climate-driven changes to the cryosphere are having unprecedented impacts in the Arctic and the Subarctic, where permafrost, snow and freshwater ice dominate the terrestrial landscape and are host to unique and interconnected habitats and ecosystems. Rates of permafrost thaw are now higher than at a...
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ftunivlavalcorp:oai:corpus.ulaval.ca:20.500.11794/123803 2024-06-23T07:49:42+00:00 Permafrost landscapes and freshwater systems in a changing North : towards an integrated understanding Gallais, Sophie Sentinelle Nord Canada (Nord) Arctique Régions froides 2023-08-22T17:23:57Z 47 pages application/pdf https://hdl.handle.net/20.500.11794/123803 eng eng Université Laval Compendium of research 2017-2022. Environment, Health, Innovation http://hdl.handle.net/20.500.11794/123803 http://purl.org/coar/access_right/c_abf2 Cryosphere Permafrost Warming Thermokarst Greenhouse Gases Microbiome Groundwater High Arctic Lakes Optical Detection Écosystèmes du pergélisol Réchauffement de la Terre Cryosphère Eau souterraine -- Facteurs climatiques Gaz à effet de serre -- Aspect de l'environnement Microbiote Détecteurs optiques chapitre d'ouvrage 2023 ftunivlavalcorp https://doi.org/20.500.11794/123803 2024-06-03T23:43:59Z Climate-driven changes to the cryosphere are having unprecedented impacts in the Arctic and the Subarctic, where permafrost, snow and freshwater ice dominate the terrestrial landscape and are host to unique and interconnected habitats and ecosystems. Rates of permafrost thaw are now higher than at any other time on record, therefore impacting northern infrastructure dependent on permafrost stability and increasing greenhouse gas emissions to the atmosphere through thermokarst lakes formation. Increasing temperatures and its related impacts are changing groundwater flow of northern river systems, altering the Arctic snowpack’s properties, and causing reduction in year-round ice cover of High Arctic lakes. The warming climate is also threatening the habitats of certain polar microbes, causing cascading effects throughout other microbial communities within connected hydrologic habitats. The discovery of new and diverse bacterial and viral communities in northern freshwater systems could bring about a better understanding of carbon cycling in northern ecosystems. This chapter presents a selection of Sentinel North’s research advances related to the physical and biogeochemical impacts of permafrost degradation; the microbial and viral diversity of Northern lakes and ponds and how they respond to climate change; the changing hydrological regime and snowpack properties; and the development of new innovative technology to monitor the changing terrestrial environments. Book Part Arctic Arctique* Climate change Ice permafrost Subarctic Thermokarst pergélisol Université Laval: CorpusUL Arctic Canada |
institution |
Open Polar |
collection |
Université Laval: CorpusUL |
op_collection_id |
ftunivlavalcorp |
language |
English |
topic |
Cryosphere Permafrost Warming Thermokarst Greenhouse Gases Microbiome Groundwater High Arctic Lakes Optical Detection Écosystèmes du pergélisol Réchauffement de la Terre Cryosphère Eau souterraine -- Facteurs climatiques Gaz à effet de serre -- Aspect de l'environnement Microbiote Détecteurs optiques |
spellingShingle |
Cryosphere Permafrost Warming Thermokarst Greenhouse Gases Microbiome Groundwater High Arctic Lakes Optical Detection Écosystèmes du pergélisol Réchauffement de la Terre Cryosphère Eau souterraine -- Facteurs climatiques Gaz à effet de serre -- Aspect de l'environnement Microbiote Détecteurs optiques Gallais, Sophie Permafrost landscapes and freshwater systems in a changing North : towards an integrated understanding |
topic_facet |
Cryosphere Permafrost Warming Thermokarst Greenhouse Gases Microbiome Groundwater High Arctic Lakes Optical Detection Écosystèmes du pergélisol Réchauffement de la Terre Cryosphère Eau souterraine -- Facteurs climatiques Gaz à effet de serre -- Aspect de l'environnement Microbiote Détecteurs optiques |
description |
Climate-driven changes to the cryosphere are having unprecedented impacts in the Arctic and the Subarctic, where permafrost, snow and freshwater ice dominate the terrestrial landscape and are host to unique and interconnected habitats and ecosystems. Rates of permafrost thaw are now higher than at any other time on record, therefore impacting northern infrastructure dependent on permafrost stability and increasing greenhouse gas emissions to the atmosphere through thermokarst lakes formation. Increasing temperatures and its related impacts are changing groundwater flow of northern river systems, altering the Arctic snowpack’s properties, and causing reduction in year-round ice cover of High Arctic lakes. The warming climate is also threatening the habitats of certain polar microbes, causing cascading effects throughout other microbial communities within connected hydrologic habitats. The discovery of new and diverse bacterial and viral communities in northern freshwater systems could bring about a better understanding of carbon cycling in northern ecosystems. This chapter presents a selection of Sentinel North’s research advances related to the physical and biogeochemical impacts of permafrost degradation; the microbial and viral diversity of Northern lakes and ponds and how they respond to climate change; the changing hydrological regime and snowpack properties; and the development of new innovative technology to monitor the changing terrestrial environments. |
author2 |
Sentinelle Nord |
format |
Book Part |
author |
Gallais, Sophie |
author_facet |
Gallais, Sophie |
author_sort |
Gallais, Sophie |
title |
Permafrost landscapes and freshwater systems in a changing North : towards an integrated understanding |
title_short |
Permafrost landscapes and freshwater systems in a changing North : towards an integrated understanding |
title_full |
Permafrost landscapes and freshwater systems in a changing North : towards an integrated understanding |
title_fullStr |
Permafrost landscapes and freshwater systems in a changing North : towards an integrated understanding |
title_full_unstemmed |
Permafrost landscapes and freshwater systems in a changing North : towards an integrated understanding |
title_sort |
permafrost landscapes and freshwater systems in a changing north : towards an integrated understanding |
publisher |
Université Laval |
publishDate |
2023 |
url |
https://hdl.handle.net/20.500.11794/123803 |
op_coverage |
Canada (Nord) Arctique Régions froides |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic Arctique* Climate change Ice permafrost Subarctic Thermokarst pergélisol |
genre_facet |
Arctic Arctique* Climate change Ice permafrost Subarctic Thermokarst pergélisol |
op_relation |
Compendium of research 2017-2022. Environment, Health, Innovation http://hdl.handle.net/20.500.11794/123803 |
op_rights |
http://purl.org/coar/access_right/c_abf2 |
op_doi |
https://doi.org/20.500.11794/123803 |
_version_ |
1802640281453985792 |