1. Graduate School of Environmental Earth Science; Hokkaido University; Sapporo, Hokkaido Japan.
2. International Pacific Research Center and Department of Meteorology; University of Hawaii; Honolulu Hawaii USA.
3. Radio Science Center for Space and Atmosphere; Kyoto University; Uji, Kyoto Japan.
4. Jet Propulsion Laboratory; Pasadena California USA.
5. Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA.
6. Climate Monitoring and Diagnostics Laboratory; National Oceanic and Atmospheric Administration; Boulder Colorado USA.
7. National Research Institute of Fisheries Science; Fisheries Research Agency; Yokohama, Kanagawa Japan.