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What is MOCA? 

The MOCA project will enhance understanding of the present atmospheric effects of methane released from dissociation of gas hydrates in Arctic seabed sediments, and will also inform on the future potential impacts in a warming climate on decadal to centennial timescales. 

Methane hydrates (MH) in ocean seabed sediments are a potential source of methane (CH4) to the atmosphere, where CH4 has potential to act as a powerful greenhouse gas. Recent scientific results studies show diversity in the flux of CH4 that actually reaches the atmosphere. MH are potentially susceptible to ocean warming, which could trigger a positive feedback resulting in rapid climate warming. 

MOCA is funded by the Norwegian Research Council and will apply advanced measurements and modelling to quantify the amount and present atmospheric impact of CH4 originating from MH. Furthermore, the project will investigate potential future climate effects from destabilisation of MH deposits in a warming climate, and will focus on scenarios in 2050 and 2100. 


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MAGIC summer. Impressions from the summer campaign

The coordinated MOCA-CAGE-MAGIC ship and aircraft campaign has been carried out successfully.
All instruments seemed to work well at both ship and aircraft. This also includes the sampling of air for trace gas and isotopic analysis, and the procedures set up for this. Many flasks are already at NILU, and they seem to be OK for analysis after our first checks.
The weather seemed to be on our side, and basically the most ambitious flights were possible. It was even possible to find Helmer Hanssen and pass it, after some “looking around”.
No long range transport episodes of industrial pollution seem to have influenced the measurements last week, neither at the ship or Zeppelin. This is a great advantage as we are studying the natural sources and fluxes.

This campaign has provided us with a lot of data that we have to work with now.
 

Special thanks for the excellent work so far to those that were very active the last weeks!!

 

 

  



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 Content related queries:  Cathrine Lund Myhre (clm 'at' nilu.no)