Measurements of Atmospheric Methane and 13C/12C of Atmospheric Methane from Flask Air Samples (1999)

This database offers precise measurements of atmospheric methane and 13C/12C in atmospheric methane from flask air samples collected at eight sites worldwide and aboard NOAA cruises in the Pacific Ocean. The eight sites include Olympic Peninsula, Washington; Cape Grim, Tasmania; Fraserdale, Ontario; Marshall Islands; Baring Head, New Zealand; Mauna Loa, Hawaii; Point Barrow, Alaska; and American Samoa. The measurements span the period 1988 to mid-1996. These data are useful for global methane budget analyses and for determining the atmospheric isotopic composition of methane. All isotopic measurements have been corrected for standard drift. For access to the data files, click this link to the CDIAC data transition website: http://cdiac.ess-dive.lbl.gov/ndps/quay.html本数据库提供了全球8个采样站点以及太平洋海域美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）科考航次采集的气瓶空气样品中的大气甲烷浓度及其碳同位素比值13C/12C的精准测量数据。这8个采样站点分别为：华盛顿州奥林匹克半岛、塔斯马尼亚州格里姆角、安大略省弗雷瑟代尔、马绍尔群岛、新西兰巴林角、夏威夷州冒纳罗亚、阿拉斯加州巴罗角和美属萨摩亚。该批测量数据的时间跨度为1988年至1996年中期。此类数据可用于全球甲烷收支分析以及大气甲烷的同位素组成研究。所有同位素测量数据均已针对标准仪器漂移完成校正。 如需获取数据文件，请点击此链接访问二氧化碳信息分析中心（Carbon Dioxide Information Analysis Center, CDIAC）数据过渡网站：http://cdiac.ess-dive.lbl.gov/ndps/quay.html