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.
| GPS/GNSS Data Products | Access Method / Product Format | |||||
|---|---|---|---|---|---|---|
| Data Product Level | Description | Generation Frequency | Creator | FTP | 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.
- DAI v3 - Initial release of our new Data Archive Interface intended to replace the DAIv2. This initial release is limited in features and does not yet fully support all the features available in the DAIv2. The DAIv3 will eventually enable search across multiple sensor data held at the GAGE Facility. [DAI3, DAIv3, Data Archive Interface version 3]
- DAI v2 [Requires Flash] NOTICE: Flash will be End of Life 2020-12-31. UNAVCO is working on a replacement. To continue using the DAIv2, you will need to use a browser (older version from early 2020) that you dedicate to running the DAIv2/Flash that you do not uptate and do not use for general web browsing. Please be aware that using an older browser for general web browsing activity would be a security risk.
- Java clients [Requires Java]
- DAI v1 - may be useful if you:
- Are having issues running Flash in your browser (required for the DAIv2), or installing Adobe AIR for the DAIv2's Download Cart.
- Need to 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.
- Need to 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.
FTP
GPS/GNSS data are available via our FTP server. See our FTP Server Layout for a guide to the server organization.
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: 2021-01-05 14:55:40 America/Denver