Global GNSS Co-Located Meteorological Data from NASA CDDIS
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Description
NASA's Crustal Dynamics Data Information System (CDDIS) provides daily meteorological data files from instruments co-located with Global Navigation Satellite System (GNSS) receivers. The dataset contains one day of meteorological observations, including temperature, pressure, and humidity, from a global permanent network of ground-based receivers, with one file per site. Data is stored in RINEX format and includes information from multiple global satellite constellations such as GPS, GLONASS, Galileo, and Beidou.
Use Cases
Analyzing temperature and pressure variations from co-located weather stations to correct GNSS signal delays for precise positioning.
Correlating humidity data from the global network with tropospheric zenith path delay estimates derived from GNSS observations.
Studying long-term meteorological trends at specific receiver sites using the daily time-series of weather parameters.
Validating regional weather models by comparing observed pressure and temperature data from the distributed ground station network.
Strengths
Data originates from a global permanent network of ground-based receivers, ensuring wide spatial coverage.
Daily files provide consistent temporal granularity for time-series analysis.
Includes meteorological data co-located with multiple GNSS constellations (GPS, GLONASS, Galileo, Beidou, QZSS, IRNSS, SBASs).
Limitations
The specific number of stations, rows of data, and temporal range are not provided in the input description.
Data format (RINEX) is specialized and may require specific parsing tools for analysis.
No information is provided on data completeness or potential gaps in the time series for individual stations.
Provenance
Source
NASA Crustal Dynamics Data Information System (CDDIS).
Collection Method
Collected from ground-based meteorological instruments co-located with GNSS receivers in a global permanent network.
Time Range
null
Freshness
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Geography
Global coverage from a network of permanent ground-based receivers.
Data is provided in the specialized RINEX format, which may require specific software or libraries for parsing and interpretation.