Unique agency IDAbbreviationFull nameCountryStation(s)
IAAIAAInstitute of Applied AstronomyRussian Federation (the) (RUS)
ICGCICGCInstitut Cartografic i Geologic de CatalunyaSpain (ESP)
ICVICVInstitut Cartogràfic ValenciàSpain (ESP)
IECAIECAInstituto de Estadistica y Cartografia de AndaluciaSpain (ESP)
IESSGIESSGUniversity of NottinghamUnited Kingdom of Great Britain and Northern Ireland (the) (GBR)
IGCASIGCASInstitute of Geophysics of the Czech Adademy of ScienceCzechia (CZE)
IGDIGDIGD GROUP AEGreece (GRC)
IGEIGEInstituto Geografico Nacional de EspanaSpain (ESP)