GRUAN Homepage: Structure of GRUAN

UNEP: United Nations Environment Programme
IOC: UNESCO’s Intergovernmental Oceanographic Commission
ICSU: International Council for Science
WCRP: World Climate Research Programme - identifies scientific and research requirements for GRUAN, while WMO identifies operational requirements.
WG-GRUAN: Composition of WG-GRUAN (AOPC Working Group on the GCOS Reference Upper-air Network) to be determined by the AOPC in consultation with WMO and should include one representative from each of CIMO (Commission for Instruments and Methods of Observation), CBS (Commission for Basic Systems), CAS (Commission for Atmospheric Sciences) and CCl (Commission for Climatology); these representatives will be responsible for reporting back to their respective Technical Commission;
GCOS SC: GCOS Steering Committee
Measurement sites: All GRUAN measurement sites are contributed by Members of WMO.
Lead Centre: The GRUAN Lead Centre
Task teams: GRUAN task teams