GPS/GNSS Data Access Methods
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 |
Search Applications
We provide both graphical user interfaces and command line client applications to browse metadata and download data in the the GPS/GNSS Data Archive.
- GNSS & Meteorological Data Access Notebook.
- DAI v2 [Web application End Of Life due to the retirement of Flash in web browsers]
- Java clients [Requires Java] - DAIv2 command line data search and access utilities.
- DAI v1 - Original Data Archive Interface web application.
- Allows search for specifics used in the acquisition of data archived at UNAVCO, e.g., monument style, receivers, or antennas searched via model or serial number.
- Provides search for campaign data by Principal Investigator (PI) or campaign name. Certain campaign data sets have no permanent monuments associated with the data files collected and these campaigns can only be searched with DAIv1.
File Server
GPS/GNSS data are available via our file server. See our File Server Layout for a guide to the server organization.
- File Server
- File Server Layout
- See our HTTPS File Server Access Examples to see how to get files from the command line.
Web Services
See our Web Services for RESTful Web Service access to data (e.g. position time series for stations analyzed by GAGE and the University of Nevada Reno Geodetic Laboratory, meteorological data from surface sensors colocated with GPS/GNSS stations) and selected metadata.
Last modified: 2022-02-09 16:01:35 America/Denver