Global GNSS Ground Receiver Data with 30-Second Sampling

Global Navigation Satellite System (GNSS) data provides autonomous geo-spatial positioning with worldwide coverage from a network of permanent ground-based receivers. The dataset, managed by NASA's Crustal Dynamics Data Information System (CDDIS), includes hourly files of 30-second sampled observations, broadcast ephemeris, and meteorological messages in RINEX format. It archives data primarily from GPS and GLONASS, with additional systems like Galileo and Beidou added since 2011.

Use Cases

• Analyzing crustal motion rates and directions using precise satellite positioning data.
• Studying atmospheric delays and corrections by correlating GNSS observation data with meteorological messages.
• Calibrating and validating global coordinate reference systems using long-term data from a permanent receiver network.
• Researching polar motion and Earth rotation variations through time-series analysis of satellite orbit data.

Strengths

• Data originates from a global network of permanent ground-based receivers, ensuring wide spatial coverage.
• Includes observations from multiple GNSS constellations (GPS, GLONASS, Galileo, Beidou, etc.) since 2011.
• Provides high-temporal-resolution data with a consistent 30-second sampling rate.

Limitations

• Specific row counts, total dataset size, and a complete column schema are not provided by any source.
• License information is inconsistently reported as 'other-license-specified' or 'None' across platforms.

Provenance

Source

NASA Crustal Dynamics Data Information System (CDDIS)

Collection Method

Archived from a global network of permanent ground-based GNSS receivers.

Time Range

Data collection includes systems archived since at least 2011, but a precise start date is not specified.

Freshness

2026-03-13 01:43:44.894325

Geography

Global