GNSS Data
There are 5 web services dedicated to GNSS Data, they allow to discover which data can be accessed through the EPOS GNSS TCS:
- GNSS Stations with RINEX Data – Displays all the EPOS GNSS stations having daily 30 or 15 second RINEX data available from the Data Gateway, the files can then be retrieved using the service “Metadata and URL of RINEX files”.
- Metadata and URL of RINEX files – Allows to retrieve RINEX file metadata and url for a GNSS station. The user can then download the RINEX File from the GNSS data nodes where the data is stored via a simple script, https access or even a program created by the user.
- GNSS Stations with Highrate RINEX Data – Displays all the EPOS GNSS stations having hourly 1 second RINEX data available from the Data Gateway, the files can then be retrieved using the service “Metadata and URL of Highrate RINEX files”.
- Metadata and URL of Highrate RINEX files – Allows to retrieve RINEX file metadata and url for a GNSS station. The user can then download the RINEX File from the GNSS data nodes where the data is stored via a simple script, https access or even a program created by the user.
- List RINEX Files search parameters This service provides information about Parameters that may be useful when downloading Rinex File Metadata
GNSS Products
Station Information
The following service are available to help users discover available stations with products, and to list the various product search criteria :
- GNSS Stations with Products Displays all the GNSS stations with Products available from the Products Portal
The web services dedicated to GNSS Products divided into 3 classes, namely time series, velocities and strain rates
GNSS Position Time Series
- EUREF-EPOS GNSS Weekly Position Time Series from SGO-EPND This service retrieves GNSS Position Time-Series produced by SGO for EUREF based on a combination of multiple GNSS solutions.
- EPOS GNSS Daily Position Time Series from UGA-CNRS This service retrieves GNSS Position Time-Series produced by UGA-CNRS for EPOS using Double Differencing strategy.
- EPOS GNSS Daily Position Time Series from INGV This service retrieves GNSS Position Time-Series produced by INGV for EPOS using Precise Point Positioning strategy.
- EUREF GNSS Daily Position Time Series from ROB-EUREF This service retrieves GNSS Position Time-Series produced by ROB for EUREF using the WUT-EUREF distribution.
GNSS Velocities (All Units in metres/year)
- EUREF-EPOS GNSS Velocities from SGO-EPND This service retrieves the GNSS Station Velocities produced by SGO (EPND-EPOS) based on the weekly EUREF time series + EPOS + velocities of densified (non-EPOS) network.
- EUREF GNSS Velocities from ROB-EUREF This service retrieves GNSS Station Velocities produced by ROB for EPN (EUREF Permanent Network) Stations.
- EPOS GNSS Velocities from UGA-CNRS This service retrieves the GNSS Station Velocities produced by UGA-CNRS
- EPOS GNSS Velocities from INGV This service retrieves the GNSS Station Velocities produced by INGV
Strain Rates
- GNSS Strain Rates from LM This service retrieves the GNSS Strain Rates produced by LM.
GNSS Station Information
GNSS Station Information – The “GNSS Stations” service provides access to M 3 G’s metadata catalogue of GNSS stations sharing data through EPOS. The catalogue is maintained by the Royal Observatory of Belgium. The service allows to:
- visualise and explore GNSS current station information on a map or in a table
- download standardized GNSS station metadata, including IGS-style site logs, and linked GNSS networks, as well as information on the station’s datasets such Digital Object Identifiers (DOIs) and data licenses.
Through a set of standardized APIs, the “GNSS Stations” service provides access to GNSS station metadata in various output formats, including EPOS-compliant GeoJSON and GNSS-specific formats such as IGS-style site logs, GeodesyML, and JSON. When available, site photographs are also provided. In addition, a simplified JSON output lists the documented equipment changes at each GNSS station, which is convenient for plotting equipment changes on a position time series.