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SIS-MILJO-Strategiske instituttsatsninge

Greenhouse gases in the North: from local to regional scale (GHG-Nor)

Awarded: NOK 5.7 mill.

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The proposed project will improve the knowledge of the emissions of CO2, CH4 and N2O and their budgets on local and regional scale at Northern latitudes, including the Arctic. CO2, CH4 and N2O are central greenhouse gases responsible for around 75% of the man-made greenhouse gas forcing since the year 1750. These gases have both natural and human-related sources, and CH4 has particularly large potential sources in the Arctic region. In the project NILU proposes to develop a method integrating atmospheric greenhouse gas measurements and inverse modelling in order to quantify the regional budgets of particularly atmospheric CH4. Attempt will also be made to quantify the regional budgets of N2O and CO2. The method is based on FLEXPART, combined with measurem ents from Birkenes, Andøya and Zeppelin, in addition to other greenhouse gas measurements from Europe and the Arctic available to NILU. Characterization of the isotopic signature of CH4 at Zeppelin is a part of the project. A synthesis of the sources cont ributing to elevated episodes of greenhouse gases at Zeppelin and Andøya will also be provided. Local CO2 fluxes from a pristine mire at Andøya will be analyzed as a part of the project to improve knowledge of the greenhouse gas emissions from this type o f ecosystem. These flux measurements supplements the source analysis based on inverse modeling method. In GHG-Nor there is also central to develop the institutional competence, and the project strongly supports the recent strategic greenhouse gas observat ional investments at NILU. The project is a collaborative project together with Bioforsk. Also activities strengthening the collaboration with other national and international institutes working on the understanding of the carbon cycle are a part of the p roject.

Publications from Cristin

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Funding scheme:

SIS-MILJO-Strategiske instituttsatsninge