Global GNSS Ground Receiver Data from NASA's CDDIS Network

NASA's Crustal Dynamics Data Information System provides daily 24-hour files of ground-based GNSS observation data sampled at 30-second intervals. The archive contains data from a global permanent network of receivers, primarily for GPS and GLONASS, with multi-GNSS data from Galileo, Beidou, and others added since 2011. Files are stored in compact RINEX format, one per site per day.

Use Cases

• Analyzing crustal motion rates and directions for plate tectonic studies using precise receiver positioning.
• Modeling Earth's gravitational field and rotational motion variations from long-term satellite-receiver observations.
• Developing and testing multi-GNSS positioning algorithms using signals from GPS, GLONASS, Galileo, and Beidou.
• Calibrating satellite-based augmentation systems (SBAS) with ground-truth data from a global receiver network.

Strengths

• Data spans a global permanent network of ground receivers, providing worldwide spatial coverage.
• Includes multi-GNSS data from at least seven satellite constellations since 2011.
• Observations are recorded at a high 30-second sampling rate in standardized RINEX format.

Limitations

• Exact row count, total size, and specific column names are not provided by any source.
• Sources conflict on file format: datagov lists BIN, ISO, HTML; nasa_earthdata description implies standard RINEX.

Provenance

Source

NASA Crustal Dynamics Data Information System (CDDIS)

Collection Method

Ground-based receivers in a global permanent network recording satellite signals.

Time Range

Archive includes data from at least 2011 to present.

Freshness

2026-03-13 01:36:27.652406

Geography

Global coverage from a network of permanent ground stations.