1. Institute for Atmospheric and Climate Science (IAC)Swiss Federal Institute of Technology (ETH) Zürich Switzerland
2. Deutscher Wetterdienst (DWD)/GCOS Reference Upper Air Network (GRUAN) Lead Center Lindenberg Germany
3. Aryabhatta Research Institute of Observational Sciences (ARIES) Nainital India
4. Indian Institute of Tropical Meteorology (IITM) Pune India
5. Meteorological Forecasting DivisionDepartment of Hydrology and Meteorology (DHM) Kathmandu Nepal