Principal Investigator:Sonnentag, Oliver Licensed Year(s):20242023
2022
2021201920182018201720162015 Summary:
This licence has been issued for the scientific research application No.5219.
Through this project the research group will address the following objectives: What is the net effect of permafrost thawing induced biophysical and biogeochemical feedbacks to the climate system? How do these two types of feedback differ between the sporadic and discontinuous permafrost zones? Is the reported decrease...
Principal Investigator:Lafleur, Peter M Licensed Year(s):20242023
2021
2019 Summary:
This licence has been issued for the scientific research application No.4717.
The overall goal of this project is to increase knowledge of how tundra environments interact with the atmosphere and predict how changing tundra vegetation will affect future climates. Tundra ecosystems exchange energy, water and carbon gases with the atmosphere, which are important elements of the climate system. As...
Principal Investigator:Sonnentag, Oliver Licensed Year(s):20222021
2019
201720162015201420132013 Summary:
The project of the present application is the continuation of year-round eddy covariance measurements of carbon, water and energy fluxes at Scotty Creek, established in 2013.
The key methodology is tower-mounted micrometeorological measurements around the eddy covariance technique using an open-path infra-red gas analyzer and a sonic anemometer. These measurements are supported by measurements ...
Principal Investigator:Hartmann, Jörg Licensed Year(s):
2018
Summary:
The objectives of this survey are to measure patterns of methane (CH4) concentrations over the Mackenzie Delta and to quantify the emissions of CH4 from this area. Together with the data of our previous campaigns we will be able to analyse the interannual variability of methane fluxes.
Furthermore, the research team will investigate the possibility of linking in-situ data of tundra landscape ch...
Principal Investigator:Lafleur, Peter M Licensed Year(s):
2018
20172016201520142013201220112010200920082007200720052004 Summary:
The broad goal of this research is to increase our understanding of tundra carbon balance of terrestrial and aquatic ecosystems and predict into the future the impacts of climate warming on these systems.
Since we are interested in all aspects of the tundra carbon balance a variety of methods are employed. These can be broken down into 4 basic categories:
1. Tundra-atmosphere fluxes - the ex...
Principal Investigator:Skeeter, Wesley R Licensed Year(s):
2017
Summary:
The objective of this campaign will be to measure the emission/uptake of methane and carbon dioxide at Fish Island in the outer Mackenzie Delta over a full growing season. This data will be used to determine the carbon balance of the island, and estimate the carbon balance of the land surfaces in the outer Mackenzie Delta. Additionally, the research team will investigate factors influencing the ex...
Principal Investigator:Hartmann, Jörg Licensed Year(s):
2016
20132012 Summary:
The objectives of this survey are to establish patterns of methane (CH4) concentration in the atmosphere over the Mackenzie delta region and to quantify the emission of CH4 from these areas. Together with the data from previous data the research team should be able to estimate the annual contribution of the Mackenzie delta region to the atmospheric methane budget. Furthermore the research team wil...