Dissolved methane in the Chukchi Sea during 2017-2020 ...

• Main Author: Ye, Wangwang
• Format: Dataset
• Language: unknown
• Published: Zenodo 2022
• Subjects: Methane, Chukchi Sea, Canadian Basin, Arctic Ocean; Arctic; Arctic Ocean; Chukchi Sea; Chukchi
• Online Access: https://dx.doi.org/10.5281/zenodo.7161980; https://zenodo.org/record/7161980

Methane (CH 4 ) is one of the important greenhouse gases. CH 4 dry mole fractions in the atmosphere have increased continuously since the onset of the industrial revolution, contributing to more than 20% of the anthropogenic radiative forcing in the lower atmosphere since 1750. In addition, the ice-covered parts of the Arctic are now known to be a reservoir of organic carbon, suggesting that the coastal areas in the Arctic may be a neglected but essential component of the global CH 4 budget. Seawater samples for CH 4 analysis were collected onboard R/V “Xuelong 1”, “Xuelong 2”, and “Xiangyanghong 3” during the 8-11th Chinese Arctic Research Expedition (CHINARE) to the Chukchi Sea during 2017-2020. 1. Equipment: Name gas chromatography Model: Agilent 7890A Method: purge-and-trap Calibration: CH 4 :N 2 mixtures, China Institute of Metrology 2 Sampling and analysis The samples were collected with a rosette water sampler equipped with Niskin bottles. Briefly, seawater was transferred to biochemical-oxygen-demand ...