%0 Dataset %T Continuous change data of methane concentration in Waliguan, Qinghai, 1994-2016 %J National Cryosphere Desert Data Center %I National Cryosphere Desert Data Center(www.ncdc.ac.cn) %U http://www.ncdc.ac.cn/portal/metadata/20ed4194-13b3-4af8-92ed-d1172d59f878 %W NCDC %R 10.12072/ncdc.cgawbo.db2935.2023 %A Wu Hao %K Methane %X This data is the observation data of China's atmospheric background reference observatory. This data set is methane concentration data from January 1, 1994 to December 31, 2016. Unit: ppb