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.

过去四十年来，北冰洋的升温速率远高于全球其他区域，而该升温在这类高纬度地区所引发的后果迄今尚未得到充分认知。本次天气式北极调查（Synoptic Arctic Survey）项目周期为2020至2022年，是一项旨在监测北冰洋健康状况的国际协作计划，将为后续相关科学研究提供重要基础。作为美国参与该项目的工作内容之一，我们沿楚科奇海至地理北极的两条陆架-深海盆地断面，开展了大气甲烷动力学特征的探测分析。本数据集收录了2022年9-10月美国参与天气式北极调查期间，海表上方北极大气中甲烷浓度的相关分析成果。