Ulla Kallio

We don’t have enough information about this author to calculate their statistics. If you think this is an error let us know.
Learn More
The Finnish Geodetic Institute (FGI) and National Land Survey of Finland (NLS) are responsible for creating and maintaining national reference frames in Finland. EUREF-FIN is the national realization of the ETRS89. The first order network (E1), including 12 FinnRef ® stations and 100 other benchmarks, was measured 1996–97. It defines the EUREF-FIN reference(More)
  • 1