Data for concentrations of greenhouse gases from the tundra on Fildes Peninsula,Antarctica between 1999 and 2002

Methane and nitrous oxide flux through pressure-tight box law determination. After obturator the seal each 20 minutes produce with the Japanese agriculture environment research institute vacuum fixed time gather in the box the gas, simultaneously uses to install on the pressure-tight box in the thermometer determination box temperature. All gas sample in the Chinese Academy of Science Nanjing soil matter circulation open laboratory determination, the methane density determines with the GC-FID gas chromatography meter; The nitrous oxide density uses the GC-ECD gas chromatography meter determination. In the inspection ship route sea surface the atmospheric sample uses same vacuum box has lifted the top of the head through two needle to gather, opens the laboratory in the Nanjing soil matter circulation to determine with the same method.