Atmospheric CH4 Concentrations from the Commonwealth Scientific and Industrial Research Organization (CSIRO) GASLAB Flask Sampling Network (1984 - 2001)

The listed data were obtained from flask air samples returned to the CSIRO GASLAB for analysis. Typical sample storage times ranged from days to weeks for some sites (e.g., Cape Grim) to as much as one year for Macquarie Island and the Antarctic sites. Experiments carried out to test for any change in sample CH4 mixing ratio during storage have shown no drift to within detection limits over test periods of several months to years (Cooper et al., 1999). For access to the data files, click this link to the CDIAC data transition website: http://cdiac.ess-dive.lbl.gov/trends/atm_meth/csiro/csiro_gaslabch4.html本数据集的数据取自送返至澳大利亚联邦科学与工业研究组织（CSIRO）GASLAB开展分析的采样瓶空气样本。部分采样站点（如格雷角）的样本典型存储时长从数日至数周不等，而麦夸里岛与南极各站点的样本存储时长最长可达一年。针对存储过程中样本甲烷（CH₄）混合比变化情况开展的实验结果显示，在数月至数年的测试周期内，未观测到超出检测限的浓度漂移（Cooper等，1999）。如需获取数据文件，请点击此链接访问CDIAC数据迁移网站：http://cdiac.ess-dive.lbl.gov/trends/atm_meth/csiro/csiro_gaslabch4.html