*Shamil Maksyutov¹、Rajesh Janardanan¹、Tomohiro Oda²、Makoto Saito¹、Yukio Yoshida¹、Johannes W Kaiser³、Vinu Valsala⁴、Edward Dlugokencky⁵、Tsuneo Matsunaga¹ (1.National Institute for Environmental Studies, Tsukuba, Japan、2.USRA/NASA GSFC, Greenbelt, USA、3.DWD, Offenbach, Germany、4.Indian Institute for Tropical Meteorology, Pune, India、5.Global Monitoring Division, NOAA, Boulder, USA)