7 record(s) found with the tag "biogeochemical processes" (multi-year projects are grouped):
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From Archaea to the Atmosphere: Integrating Microbial, Isotopic and Landscape-Scale Observations to Quantify Methane Emissions from Global High-Latitude Ecosystems
Principal Investigator: Varner, Ruth K
Licensed Year(s): 2019
Summary: The aim of this project is to combine remote sensing data, field measurements and biogeochemical modeling to improve methane emissions estimates from thawing permafrost peatland landscapes at local, regional and global scales. To accomplish this, the research team will integrate data on water table and vegetation from remote sensing (satellites, unmanned aerial vehicle (UAVs)), with local measurem...


Nunataryuk WP4: Satellite tracking of the organic matter in the Mackenzie Delta, impact of climate change on permafrost thaw
Principal Investigator: Babin, Marcel
Licensed Year(s): 2019
Summary: The specific objectives of this project are: 1) to document trends in export of coastal, riverine and subterranean dissolved and particulate organic matter and carbon into the Arctic Ocean; 2) to determine their fate and related processes (origin and age, transport, physical, chemical, and biological transformation) in coastal waters and estuarine sediment; and 3) to assess the impacts of thes...


Biogeochemistry of Lakes in the Mackenzie Delta
Principal Investigator: Lesack, Lance
Licensed Year(s): 2017 2016 2015 2014 2010 2009 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993
Summary: The long-term goal of this project is to develop a biogeochemical model for lakes in the Mackenzie Delta, and ultimately, a more general ecosystem model for floodplains and deltas of major world rivers that will help assess the effects of multiple stresses on rivers resulting from global change. Numerous major river deltas in the Arctic circumpolar region are lake-rich because of thermokarst effec...


Biocomplexity of frost-boil ecosystems
Principal Investigator: Walker, Donald A
Licensed Year(s): 2006 2005 2004 2003
Summary: The goal of this project is to understand the complex linkages between biogeochemical cycles, vegetation, disturbance and climate across the full summer temperature gradient in the Arctic in order to better predict ecosystem responses to changing climate...


Climate Geochemistry
Principal Investigator: Guo, Laodong
Licensed Year(s): 2005 2004
Summary: The purpose of the study is to better understand how climate and environmental changes affect river water chemistry and material export fluxes, and in turn, how biogeochemical tracers can be used to examine the impacts and biogeochemical consequences of environmental changes. This is the second year of a three-year study. The researchers plan to sample the Mackenzie River starting in late Apri...


Canadian Arctic Shelf Exchange Study (CASES)
Principal Investigator: Fortier, Louis
Licensed Year(s): 2004 2003 2002
Summary: The Canadian Arctic Shelf Exchange Study (CASES), a major international effort under Canadian leadership, aims to understand the biogeochemical and ecological consequences of sea ice variability on the Mackenzie Shelf (Beaufort Sea) and provide the infor...


Sedimentology and Stratigraphy of Upper Devonian Strata around Hay River, NWT
Principal Investigator: MacNeil, Alex
Licensed Year(s): 2003 2002
Summary: The purpose of this study (2003 component) is to examine the fossilized types of corals that are found in the regional geological formations. Locally these corals coalesced to form mini-reefs, with interesting ecological characteristics. From the study...


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