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physical sciencessediment
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32 Dossier(s) trouvé(s) à l’emplacement "Région désignée des Inuvialuits" (les projets pluriannuels sont regroupés):
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Watershed-scale geomorphic response to climate change in the Aklavik Range, NWT
chercheur principal: Strauss, Justin Vincent
Année(s) de permis: 2024 2023 2022
Résumé: This licence has been issued for the scientific research application No.5411. or this latest phase of research, the research team propose to integrate field observations, geochemical techniques, and historical remote sensing analysis to quantify the rates and processes by which sediment is generated from bedrock and transported downslope via hillslope and river processes under a changing climat...
Année(s) de permis: 2024 2023 2022
Résumé: This licence has been issued for the scientific research application No.5411. or this latest phase of research, the research team propose to integrate field observations, geochemical techniques, and historical remote sensing analysis to quantify the rates and processes by which sediment is generated from bedrock and transported downslope via hillslope and river processes under a changing climat...
Organic carbon cycle in the Mackenzie delta lakes
chercheur principal: Lattaud, Julie
Année(s) de permis: 2022
Résumé: This licence has been issued for the scientific research application No.5187. The project will study the dynamics of deltaic lake ecosystems over the past century through the application of recently developed molecular (lipid biomarker) and isotopic (radiocarbon and stable isotopes) proxies to lake sedimentary records. This will unravel the impact of old carbon input into aquatic ecosystems. Ra...
Année(s) de permis: 2022
Résumé: This licence has been issued for the scientific research application No.5187. The project will study the dynamics of deltaic lake ecosystems over the past century through the application of recently developed molecular (lipid biomarker) and isotopic (radiocarbon and stable isotopes) proxies to lake sedimentary records. This will unravel the impact of old carbon input into aquatic ecosystems. Ra...
Nitrogen sources for Arctic freshwaters (NitroFresh)
chercheur principal: Pastor, Ada
Année(s) de permis: 2021
Résumé: This licence has been issued for the scientific research application No.5034. The main aim of Nitrofresh is to assess the nitrogen (N) sources for streams and the linkages between terrestrial and freshwater ecosystems across different regions with continuous permafrost in High Arctic. In particular, the research team have three objectives: 1) to quantify and characterize N pools along the ripar...
Année(s) de permis: 2021
Résumé: This licence has been issued for the scientific research application No.5034. The main aim of Nitrofresh is to assess the nitrogen (N) sources for streams and the linkages between terrestrial and freshwater ecosystems across different regions with continuous permafrost in High Arctic. In particular, the research team have three objectives: 1) to quantify and characterize N pools along the ripar...
Examining the impacts of climate and environmental change on aquatic and terrestrial ecosystems of the Mackenzie region, NWT
chercheur principal: Pisaric, Michael FJ
Année(s) de permis: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Résumé: This research will continue the long term objective of documenting and understanding the impacts of recent climate change on northern terrestrial and aquatic ecosystems. The short term objectives of my research for 2018 are: 1) to investigate the impacts of permafrost degradation and subsequent thaw slumping on freshwater ecosystems; 2) to examine the limnological implications of drained lakes on ...
Année(s) de permis: 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009
Résumé: This research will continue the long term objective of documenting and understanding the impacts of recent climate change on northern terrestrial and aquatic ecosystems. The short term objectives of my research for 2018 are: 1) to investigate the impacts of permafrost degradation and subsequent thaw slumping on freshwater ecosystems; 2) to examine the limnological implications of drained lakes on ...
Flux of sediment-associated chemical elements in rivers draining to the Arctic Ocean
chercheur principal: Bogen, Jim J
Année(s) de permis: 2010
Résumé: The objective of this research is to estimate the modern and historical fluxes of sediment- associated chemical elements to the Arctic Ocean and their relationships to natural and man-induced changes in sediment yields and sediment sources and if possible, predict the impact of future climate changes on the fluxes. The study will include sampling of overbank sediments from floodplains and del...
Année(s) de permis: 2010
Résumé: The objective of this research is to estimate the modern and historical fluxes of sediment- associated chemical elements to the Arctic Ocean and their relationships to natural and man-induced changes in sediment yields and sediment sources and if possible, predict the impact of future climate changes on the fluxes. The study will include sampling of overbank sediments from floodplains and del...
Massive Ice Study in Granular Deposits
chercheur principal: Pollard, Wayne H
Année(s) de permis: 2006 2005 2004 2003
Résumé: Sand, gravel and crushed stone are valuable geological resources, collectively known as aggregates. They are essential bed, foundation and building materials. The presence of massive ice in aggregate deposits results in a series of resource management problems, particularly for the oil industry and its contractors who rely on local granular deposits as building material. From an environmental pers...
Année(s) de permis: 2006 2005 2004 2003
Résumé: Sand, gravel and crushed stone are valuable geological resources, collectively known as aggregates. They are essential bed, foundation and building materials. The presence of massive ice in aggregate deposits results in a series of resource management problems, particularly for the oil industry and its contractors who rely on local granular deposits as building material. From an environmental pers...
Climate forcing factors and the record of climatic variability in the western Canadian Arctic during the past 2000 years
chercheur principal: Tomkins, Jessica
Année(s) de permis: 2006 2005
Résumé: The main goal of this research is to use lake sediment records to examine changes in weather conditions and river discharge in the western Canadian Arctic during the past 2000 years, which will aid in understanding current conditions and forecasting future conditions. The research team will reach the study location by airplane from Resolute, Nunavut, and will be on site from late May to early ...
Année(s) de permis: 2006 2005
Résumé: The main goal of this research is to use lake sediment records to examine changes in weather conditions and river discharge in the western Canadian Arctic during the past 2000 years, which will aid in understanding current conditions and forecasting future conditions. The research team will reach the study location by airplane from Resolute, Nunavut, and will be on site from late May to early ...
Particle Dynamics on the Mackenzie shelf (CASES sub-project)
chercheur principal: Walker, Tony R
Année(s) de permis: 2005 2004
Résumé: The Beaufort Sea shelf is very shallow and the Mackenzie River, which sends freshwater, nutrients, and particles onto the shelf, may have a large influence on its productivity. The researchers would like to study the effects of the river in transporting particles to the shelf by measuring the types of particles, how fast they sink, and how easily they are stirred from the bottom. They would also ...
Année(s) de permis: 2005 2004
Résumé: The Beaufort Sea shelf is very shallow and the Mackenzie River, which sends freshwater, nutrients, and particles onto the shelf, may have a large influence on its productivity. The researchers would like to study the effects of the river in transporting particles to the shelf by measuring the types of particles, how fast they sink, and how easily they are stirred from the bottom. They would also ...
Hazards, Sea-level Rise, and Climate Change Impacts on Arctic Coasts
chercheur principal: Forbes, Donald L
Année(s) de permis: 2006 2005 2004 2003 2002 2001
Résumé: The primary objectives of the project are to; 1) monitor coastal stability and the processes which affect it (winds, waves, sea ice, etc); 2) map coastal features, sediment properties, and ice conditions in the nearshore regions of the Mackenzie Delta an...
Année(s) de permis: 2006 2005 2004 2003 2002 2001
Résumé: The primary objectives of the project are to; 1) monitor coastal stability and the processes which affect it (winds, waves, sea ice, etc); 2) map coastal features, sediment properties, and ice conditions in the nearshore regions of the Mackenzie Delta an...
Beaufort Shelf Seabed Mapping Project
chercheur principal: Blasco, Steve M
Année(s) de permis: 2009 2008 2007 2006 2005 2004 2003
Résumé: The Beaufort Seabed Mapping Project is designed to assess the environmental impact of offshore hydrocarbon exploration and transportation on the renewable resources of the Beaufort Sea. This project has 2 objectives: 1) seabed sampling using grab sampler...
Année(s) de permis: 2009 2008 2007 2006 2005 2004 2003
Résumé: The Beaufort Seabed Mapping Project is designed to assess the environmental impact of offshore hydrocarbon exploration and transportation on the renewable resources of the Beaufort Sea. This project has 2 objectives: 1) seabed sampling using grab sampler...
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