10 dossier(s) trouvé(s) portant l’étiquette "arctic lakes" (les projets pluriannuels sont regroupés):
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Hydrology of Northern Latitudes
chercheur principal: Marsh, Philip
Année(s) de permis: 2024
Résumé: This licence has been issued for the scientific research application No. 5842. The objectives of this project are to: (1) develop improved understanding of, and ability to predict, the complex northern hydrologic system, (2) consider the integrated effect of the changing climate on vegetation, snow, permafrost, streamflow, and lakes, and (4) develop improved water models needed to predict futur...


THAWPOND-NWT – Remote sensing analysis of vegetation and thaw pond colour dynamics in the continuous permafrost zone: from local to regional (Northwest Territories, Arctic Canada)
chercheur principal: Vieira, Gonçalo
Année(s) de permis: 2023
Résumé: This licence has been issued for the scientific research application No. 5639. The goal of this research project is to better understand the characteristics of various different lakes, how their characteristics vary, as well as their potential relation to permafrost thaw events in the recent or distant past. The frequency of occurrence across space and time as well as the variability of: 1) opt...


Hydro-ecological Responses of Arctic Tundra Lakes to Climate Change and Landscape Perturbation
chercheur principal: Wrona, Frederick J
Année(s) de permis: 2011 2010 2009
Résumé: The overall objective of this study is to develop a model that can be used to look at the vulnerability of small arctic lakes and ponds to changing climate. Lake Ice Study: Lakes 5A, 5B and Noell Lake (MAP-2 of the original licence application) will be visited in mid-April to measure lake ice. Holes will be made in the ice using an ice corer. Ice thickness and composition will be determined by...


Amendment - Hydro-ecological Responses of Arctic Tundra Lakes to Climate Change and Landscape Perturbation
chercheur principal: Wrona, Frederick J
Année(s) de permis: 2011 2010 2009
Résumé: The overall objective of this research component is to improve the knowledge on present-day food webs/productivity in small Arctic pond/lake systems, in order to better predict changes that could occur under changing climate. The methodology described below pertains to all new research activities related to this new research component dealing with fish. All other research activities related to ...


Sensitivities of high-latitude lakes to climatic & development disturbances
chercheur principal: Prowse, Terry D
Année(s) de permis: 2008 2007 2006 2005
Résumé: The objective of this study is to develop a hydro-ecological model for small Arctic lakes to assess the vulnerability of their ecosystems to disturbances, such as climate change or water withdrawal. To quantify geochemical loadings to lakes, a model is being developed by monitoring lakes and their contributing catchment (surface water flow). A climate station will be set up at 2 - 6 sites to mo...


Postglacial Paleoclimatology of the central and western Arctic Islands
chercheur principal: Gajewski, Konrad
Année(s) de permis: 2008 2004 2001 1994 1993 1992 1991 1990
Résumé: The goal of this study is to collect lake sediment cores from shallow lakes to quantify the impact of past climate change on the vegetation and lakes of the area. Sediment cores from the bottom of 2 lakes in the region will be collected. A 10 day camp of 3 people will be set up at 71°43'12"N, 122°02'31"W. Transportation will be by Twin Otter to the camp, and by walking to the lakes. No gas powe...


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 idea of the study is that researchers use the layers of sediment in a lake-bottom to figure out what the climate was like every year from last year to 2000 years ago. The researchers want to 1) look at cores of lake-bottom sediment that show layers...


Water Quality Assessment and Climate History of Selected Ponds and Streams on Melville Island
chercheur principal: Douglas, Marianne
Année(s) de permis: 2002 2000 1999
Résumé: The overall goal of the research is to more fully understand the present-day water quality of arctic lakes and ponds, and to attempt to determine if the water quality of these sites are changing as a result of, for example, recent climatic change or othe...


Late Quaternary History of the Richardson Mountains and the Melville Hills
chercheur principal: Lamoureux, Scott F
Année(s) de permis: 2001
Résumé: The research will require fieldwork in the Richardson Mountains between 27 April and 8 May, 2001. Research will involve the development of a high-resolution paleoenvironmental record based on lake sediments from up to six lakes in the Richardson Mountains and the Melville Hills in the NWT. Transportation in the field for the Dempster Highway study will be by snowmobile and snowshoes. If snow cov...


Modelling the energy and water balance and characteristics of lakes in the Mackenzie River Basin.
chercheur principal: Rouse, Wayne R
Année(s) de permis: 2001
Résumé: The field work associated with the proposed study will consist of the collection of climate data, such as air temperature, humidity, wind speed, wind direction, amount of rain fall, water temperatures and light penetration into the lake. Similar equipment will be used to collect this data at all sites. Air temperature, humidity, wind speed, wind direction, water temperatures and light penetration...


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