10.5880/GFZ.1.1.2020.001 eng dataset GFZ German Research Centre for Geosciences datapub@gfz-potsdam.de http://www.gfz-potsdam.de Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences Helmholtz-Centre Potsdam - GFZ German Research Centre for Geosciences pointOfContact 2024-04-24 urn:ogc:def:crs:EPSG:4326 GNSS data of the global GFZ tracking network 2024-04-24 revision doi:10.5880/GFZ.1.1.2020.001 Ramatschi, Markus GFZ German Research Centre for Geosciences, Potsdam, Germany author Bradke, Markus GFZ German Research Centre for Geosciences, Potsdam, Germany author Nischan, Thomas GFZ German Research Centre for Geosciences, Potsdam, Germany author Männel, Benjamin GFZ German Research Centre for Geosciences, Potsdam, Germany author GFZ German Research Centre for Geosciences GFZ German Research Centre for Geosciences, Potsdam, Germany originator GFZ Data Services publisher Since the early 1990s, the GFZ has operated a global GNSS station network with currently about 70 stations for precise satellite clock & orbit determination, realization of the terrestrial reference frame, radio occultation measurements or studies on crust dynamics. A subset of these stations contributes also to the tracking networks of the International GNSS Service (IGS) and the EUREF Permanent GNSS Network (EPN). Other stations contribute to GFZ observatories (IPOC, DESERVE, TERENO), to the GPS Atmosphere Sounding Project (GASP), to WMO Global Climate Observing System Reference Upper-Air Network (GRUAN) or to other external cooperations. We offer data of 51 GFZ GNSS stations under this DOI. Nearly all stations are equipped with Javad or Septentrio hardware. Depending on the location and hardware they provide data of GPS (L1 / L2 / L5), GLONASS (L1 / L2 / L3), Galileo (E1 / E5a / E5b / E6), BeiDou (B1 / B2 / B3), QZSS (L1 / L2 / L5 / L6), NAVIC (L5), and SBAS (L1 / L5). The GNSS Station Nework Site (https://isdc.gfz-potsdam.de/gnss-station-network/) provides direct access to the 1s and 30s sampled RINEX data (near real-time, file based) and to real-time streams. Real-time streams are available for stations contributing to the IGS. Raw data GNSS binary raw observations are available upon request. All GFZ Stations follow the site guidelines of the International GNSS Service (https://kb.igs.org/hc/en-us/articles/202011433-Current-IGS-Site-Guidelines) Station specific metadata can be found at our metadata portal SEMISYS. An overview of the list of stations with direct links to the station specific metadata in semisys is available via ftp://datapub.gfz-potsdam.de/download/10.5880.GFZ.1.1.2020.001/2020-001_Ramatschi-et-al_List-of-GFZ-GNSS-Stations-with-links-to-SEMISYS.pdf. Complete Ramatschi, Markus GFZ German Research Centre for Geosciences, Potsdam, Germany gnss@gfz-potsdam.de pointOfContact Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Beidou Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > Galileo Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GLONASS Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GNSS Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS > GNSS RECEIVER Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > IRNSS Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > QZSS Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > SBAS GCMD Instruments publication EARTH SCIENCE > SOLID EARTH > GEODETICS EARTH SCIENCE SERVICES > DATA ANALYSIS AND VISUALIZATION > GLOBAL POSITIONING SYSTEMS NASA/GCMD Earth Science Keywords publication CC BY 4.0 CC BY 4.0 https://datapub.gfz-potsdam.de/download/10.5880.GFZ.1.1.2020.001/2020-001_Ramatschi-et-al_List-of-GFZ-GNSS-Stations-with-links-to-SEMISYS.pdf URL IsDocumentedBy http://acc.igs.org/misc/rinex304.pdf URL IsDocumentedBy https://files.igs.org/pub/resource/guidelines/Guidelines_for_Continuously_Operating_Reference_Stations_in_the_IGS_v1.0.pdf URL IsDocumentedBy https://www.alberding.eu/de/GNSSStatus_overview.html URL References 10.1007/978-3-319-42928-1 DOI References 10.1007/978-3-319-42928-1_33 DOI References 10.1007/1345_2015_120 DOI References http://semisys.gfz-potsdam.de/semisys/index.php URL HasMetadata eng geoscientificInformation global -180 180 -90 90 1994-01-01 http://doi.org/10.5880/GFZ.1.1.2020.001 WWW:LINK-1.0-http--link Data Access - DOI Data Access - DOI information Our GNSS stations are equipped with antenna, receiver, data logger (PC), and communication. For nearly all stations binary GNSS receiver messages are streamed in real time via local internet / GSM / VSAT to the GFZ data center and collected there in 15 minute data files, as it is done on site. After comparing the data files collected at GFZ with the raw messages stored locally, non identical or missing files are send from the site using scp. Data files are then converted to the RINEX (http://acc.igs.org/misc/rinex304.pdf) format using vendor-provided software. Real-time streams are provided by converting the binary message stream into RTCM format using the Alberding EuroNET software. Stations without real-time capabilities transfer binary files only. If no internet connection is available data will be stored locally and transmitted as soon as the connection is re-established.