Articles | Volume 20, issue 9
https://doi.org/10.5194/bg-20-1773-2023
https://doi.org/10.5194/bg-20-1773-2023
Research article
 | 
16 May 2023
Research article |  | 16 May 2023

Sea–air methane flux estimates derived from marine surface observations and instantaneous atmospheric measurements in the northern Labrador Sea and Baffin Bay

Judith Vogt, David Risk, Evelise Bourlon, Kumiko Azetsu-Scott, Evan N. Edinger, and Owen A. Sherwood

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Cited articles

Amante, C. and Eakins, B. W.: ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis. NOAA Tech. Memo NESDIS NGDC-24. National Geophysical Data Center, NOAA [data set], https://doi.org/10.7289/V5C8276M, 2009. 
Amundsen Science Data Collection: CCGS Amundsen Navigation (NAV) data recorded during the annual science expeditions in the Canadian Arctic., Can. Cryospheric Inf. Netw. CCIN Waterloo Can., Complete data Version 1, PolarData [data set], https://doi.org/10.5884/12447, 2021a. 
Amundsen Science Data Collection: AVOS Meteorological Data collected by the CCGS Amundsen in the Canadian Arctic, Can. Cryospheric Inf. Netw. CCIN Waterloo Can., Processed data, PolarData [data set], https://doi.org/10.5884/12518, 2021b. 
Amundsen Science Data Collection: CTD-Rosette data collected by the CCGS Amundsen in the Canadian Arctic, Can. Cryospheric Inf. Netw. CCIN Waterloo Can., Processed data Version 1, PolarData [data set], https://doi.org/10.5884/12713, 2021c. 
Amundsen Science Data Collection: TSG data collected by the CCGS Amundsen in the Canadian Arctic, Can. Cryospheric Inf. Netw. CCIN Waterloo Can., Processed data Version 3, PolarData [data set], https://doi.org/10.5884/12715, 2021d. 
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Short summary
The release of the greenhouse gas methane from Arctic submarine sources could exacerbate climate change in a positive feedback. Continuous monitoring of atmospheric methane levels over a 5100 km voyage in the western margin of the Labrador Sea and Baffin Bay revealed above-global averages likely affected by both onshore and offshore methane sources. Instantaneous sea–air methane fluxes were near zero at all measured stations, including a persistent cold-seep location.
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