The GNSS data portal is used to provide data measured by permanent GNSS stations (Global Navigation Satellite System). It contains:
- Metadata about GNSS stations ("site-logs")
- GNSS measurement files
- GNSS data quality control
Access is provided for permanent GNSS stations from four networks that are connected to the CzechGeo infrastructure (GEONAS, PPGNet, VESOG and WEBGEODYN) and one network cooperating with CzechGeo (CZEPOS). The data is available in daily files in the standard RINEX format (version 2.11 or 3.x) with a recording interval of 30 seconds. For data with a shorter recording interval (1 second, for some stations 10 Hz), please contact the responsible person. The data are available only for research and academic purposes within the CzechGeo/EPOS infrastructure. Information on the use of data is collected, including links to relevant publications.
Data from GOPE, GOP6, GOP7 stations, which are part of the International GNSS Service (IGS), is also available in global data centers, eg. the global IGN data center - download data without registration.
Data from GOPE, GOP6, KUNZ, TUBO stations, which are part of the EUREF Permanent Network (EPN), is also available in regional data centers, eg. the BKG regional data center - data download without registration.
Data from PPGNet stations (KTCH, LEPE, PVOG, RETS, RGNI, VALY) is also available in the data center in Greece - National Observatory of Athens, Institute of Geodynamics
Data from stations of cooperating GNSS network CZEPOS is primarily available on the CZEPOS data server of the Land Survey Office in Prague - this is a paid service, access to the data is after registration.