Temporal Variations of the Atmospheric CO2 Concentration and Its Carbon Isotope Ratio at Ny-Ă…lesund, Svalbard and Estimation of Global Carbon Budget

Daisuke Goto1, Shinji Morimoto2, Shigeyuki Ishidoya3, Shuji Aoki2 and Takakiyo Nakazawa2, (1)National Institute of Polar Research, Tokyo, Japan, (2)Tohoku University, Sendai, Japan, (3)National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba, Japan