GNSS Networks
- EUREF Permanent GNSS Network (EPN)
http://www.epncb.eu - International GNSS Service (IGS)
http://www.igs.org - EUMETNET GPS water vapour programme (E-GVAP)
http://egvap.dmi.dk
EPOS
- European Plate Observing System (EPOS)
https://www.epos-eu.org - EPOS-GNSS Data Portal
http://gnssdata-epos.oca.eu - EPOS-GNSS Data Quality Monitoring System (DQMS)
https://gnssquality-epos.oma.be - EPOS-GNSS Product Portal
https://gnssproducts.epos.ubi.pt - EPOS-GNSS Station Metadata Portal
https://gnss-metadata.eu
IAG
- IAG Sub-commission for the European reference Frame (EUREF)
http://www.euref.eu - International Association of Geodesy (IAG)
http://www.iag-aig.org