The contents of this report briefly address the operational aspects of GPS including
data sources, techniques, and accuracies. It also provides a brief description of national
networks maintained through partnerships between the public and private sectors and
academia. It closes with guidelines for establishing International GNSS Stations (IGSs) and
GPS Meteorological networks. The information contained in this publication will assist
NMHSs in their decision regarding the selection of remote sensing equipment.
S de Haan. National/regional operational procedures of GPS water vapour networks and agreed international procedures