NASA CDDIS GNSS High-Rate Meteorological Data

NASA's Crustal Dynamics Data Information System provides sub-hourly ground-based meteorological data from instruments co-located with GNSS receivers. The dataset contains 15-minute interval measurements of temperature, pressure, and humidity from a global permanent network, formatted in RINEX. It includes data from multiple global navigation systems like GPS, GLONASS, Galileo, and Beidou, with archives updated regularly.

Use Cases

• Analyzing tropospheric water vapor content using co-located GNSS and meteorological sensor data.
• Correcting signal delays in GNSS positioning by modeling local atmospheric conditions from temperature and pressure readings.
• Studying short-term atmospheric phenomena using high-temporal-resolution humidity and temperature data from a global station network.

Strengths

• Data is collected from a global permanent network of ground-based receivers, ensuring wide spatial coverage.
• Provides high-temporal-resolution data with files generated every 15 minutes per site.

Limitations

• Specific row counts, file sizes, and a complete list of columns are not provided by any source.
• Sources conflict on the license, with one specifying 'other-license-specified' and another listing 'None'.

Provenance

Source

NASA Crustal Dynamics Data Information System (CDDIS)

Collection Method

Collected from ground-based instruments co-located with GNSS receivers at permanent global stations.

Time Range

Data archives include information since at least 2011, when support for multiple GNSS constellations began.

Freshness

2026-03-13 01:45:07.075402

Geography

Global coverage from a network of permanent ground-based receiver sites.