Methane concentrations in air during the US contribution to the Synoptic Arctic Survey on a transect Chukchi Sea - Geographic North Pole, Arctic Ocean (2020-2022)

The Arctic Ocean has been warming much faster than the rest of the globe over the past four decades, and the consequence of this warming are not well known in these high latitudes. The Synoptic Arctic Survey, spanning 2020-2022, is an international effort aimed at monitoring the health of the Arctic Ocean, and will serve as a basis for future scientific studies. As part of the US contribution, we explored the dynamics of methane in air along two shelf-to-deep basin transects, from the Chukchi Sea to the geographic North Pole. This dataset provides analyses of methane concentrations in Arctic air above the sea surface during the US contribution of the Synoptic Arctic Survey in September-October 2022.