1. Department of Civil Engineering Engineering Faculty Ferdowsi University of Mashhad (FUM) Mashhad Iran
2. Department Geodesy Helmholtz‐Zentrum Potsdam – Deutsches GeoForschungsZentrum GFZ Potsdam Germany
3. Department of Geodesy Faculty of Geodesy and Geomatics Engineering K.N. Toosi University of Technology Tehran Iran
4. Department of Geodesy Helmholtz‐Zentrum Potsdam – Deutsches GeoForschungsZentrum GFZ Potsdam Germany
5. Institute of Geodesy and Geoinformation Science Technische Universität Berlin Berlin Germany