April 15 – BG/ATM Seminar by Patrick Crill

Wednesday 15 April at 13.00
Ahlmannsalen, Geohuset
Webcast: https://connect.sunet.se/bgcatm

 

From Archaea to the Atmosphere: Can Genome‐scale Resolution Improve Earth System Models of Climate Change?

Prof. Patrick Crill, Department of Geological Sciences, Stockholm University for the IsoGenie Team, Sweden

It is estimated that there is between two to two and a half times as much carbon locked in near‐surface permafrost in the climate sensitive Arctic as there is presently in the atmosphere. Starting with the overall challenge to understand the methane and carbon cycle response to permafrost thaw, this project addresses four research questions:
1. What is the effect of permafrost thaw on CH4 production and overall carbon storage?
2. What controls the biochemical pathway (acetoclastic vs. CO2‐reductive) by which methane is produced from thawing permafrost?
3. What controls the fraction of decomposing organic matter in thawing permafrost emitted as CH4 versus CO2? Current models prescribe (but do not simulate) the CH4/CO2 ratio.
4. What is the impact of thaw on CH4 isotopic composition of the atmosphere? This issue directly affects the success of atmospheric inversion models which partition CH4 sources.
This talk is a report on the progress of a multi‐national, multi‐disciplinary investigation into how we can scale processes from genes/genomes to ecosystems and whether genomic scale resolution of processes allow us to improve ecosystem or climate models.


 

Organizers: Radovan Krejci – This email address is being protected from spambots. You need JavaScript enabled to view it., Paul Glantz – This email address is being protected from spambots. You need JavaScript enabled to view it.
and Patrik Crill – This email address is being protected from spambots. You need JavaScript enabled to view it.

Webcast: https://connect.sunet.se/bgcatm 
Lectures Archive: http://vimeo.com/bgcatm/videos 


To see a list of upcoming Lectures in Biogeochemistry and Atmospheric Science,
visit: ITM's Events page .

 

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