1. Royal Meteorological Institute of Belgium Brussels Belgium
2. Royal Observatory of Belgium (ROB) Brussels Belgium
3. Military University of TechnologyFaculty of Civil Engineering and Geodesy Warsaw Poland
4. Unaffiliated Tortosa Spain
5. Topography and CartographyResearch Institute of Geodesy Zdiby Czech Republic
6. Lantmäteriet (Swedish Mapping, Cadastral and Land Registration Authority) Gävle Sweden
7. IPGP, IGNUniversité de Paris, CNRS, UMR Paris France
8. AEMET (State Meteorological Agency) Madrid Spain
9. German Research Centre for Geosciences GFZ Potsdam Germany
10. Norwegian University of Science and TechnologyDepartment of Civil and Environmental Engineering Trondheim Norway
11. AgroParisTech, INRA Paris France
12. Zentralanstalt für Meteorologie und Geophysik Vienna Austria
13. Politecnico di Milano, DICA Milan Italy
14. Karadeniz Technical UniversityDepartment of Geomatics Engineering Trabzon Turkey