Data Help with Data GPS/GNSS Data Data Access Search and Access Methods File Server File Server Access Examples Web Services Real-time GPS/GNSS Data Derived Data Products Associated Data Products Data Formats Data Management Data Operations

GPS/GNSS Data


The UNAVCO Data Center handles data management tasks for GPS/GNSS data and products from thousands of globally distributed permanent stations and ten thousand globally distributed campaign sites. A large fraction of the data are contributed by UNAVCO community investigators. Our GNSS Data Management Overview illustrates the UNAVCO GPS/GNSS data flow from stations and campaigns to users.

UNAVCO archives and distributes GPS/GNSS data in a variety of product levels, formats and access methods. Product levels distinguish between raw data (Level 0), pre-processed data (Level 1), and post-processed/derived (Level 2) data products. In addition to direct file server access, web based graphical user interfaces, command line clients, and web services are available.

GPS/GNSS Data Products Access Method / Product Format
Data Product Level Description Generation Frequency Creator File Server Web Graphical Interface Web Service
Level 1 Standard rate data (15-sec) Daily, varies UNAVCO RINEX RINEX n/a
High rate data (1-, 2-, 5-sps) Varies UNAVCO RINEX RINEX n/a
Survey-mode (campaign) data Daily, varies UNAVCO n/a RINEX n/a
Level 2 Position solution time series Daily MIT ASCII, CSV ASCII, CSV ASCII, CSV
Velocity solutions Monthly MIT ASCII ASCII ASCII, CSV
Position offsets (e.g. coseismic) Varies MIT ASCII n/a n/a
Tropospheric parameter estimates Daily CWU ASCII n/a n/a
Position solution QA parameters Daily, varies UNR ASCII ASCII n/a
Position solutions (loose) Daily CWU SINEX SINEX n/a
Position solutions (constrained) Daily MIT SINEX SINEX n/a

Data Access Methods

Data Access Methods include GUI and command line tools for site search and data access, direct HTTPS File Server access for browsing and command line scripts, REST web services, real-time data access streams, derived products access, and custom data requests. Please review the Data policy for data archived at UNAVCO.

Data Formats

Community Data Formats have been developed and are hosted at the UNAVCO/GAGE Data Center. UNAVCO has helped develop GPS/GNSS data and metadata standards, like BINEX, in collaboration with the UNAVCO/GAGE geosciences community. UNAVCO hosts documentation about the BINEX data and metadata standard developed by the UNAVCO community and GNSS receiver manfacturers.

Data Operations

A collection of Data Operations pages for monitoring of archiving and QC.

 

Last modified: 2022-07-01  19:06:06  America/Denver