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Geodetics Data Access and Tools
NASA has geodetics datasets that help researchers characterize the shape of Earth and the motion of its components. Access a range of data and data tools such as AppEEARS, Worldview, and Giovanni to make the most of geodetics data.
Geodetics Datasets
| Dataset Sort descending | Version | Platforms | Instruments | Temporal Extent | Spatial Extent | Spatial Resolution | Data Format |
|---|---|---|---|---|---|---|---|
| GNSS GLONASS Combined Broadcast Ephemeris Data (30-second sampling, daily files) from NASA CDDIS | 1 | GLONASS, GROUND STATIONS | GLONASS P, GNSS | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
RINEX | |
| Aqua MODIS Level-1A Geolocation Data, version 1 | 1 | Aqua | MODIS | 2002-07-04 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF-4 | |
| CDDIS MEaSUREs SESES GNSS products Daily 5-minute Precise Point Positioning (PPP) Tropospheric Estimates | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
SOPAC GLOBK ATS Model | |
| CDDIS MEaSUREs SESES products 3D station velocity estimates | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
SINEX header, text file | |
| CDDIS MEaSUREs SESES products Change in Water Storage Time Series | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
SINEX | |
| CDDIS MEaSUREs SESES products High-rate Earthquake Displacement | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
text, image, metadata, and binary data files | |
| CDDIS MEaSUREs SESES products Horizontal Strain Rate Grids | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF, PDF | |
| CDDIS MEaSUREs SESES products Plate Boundary Aseismic Transient Deformation | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
ASCII, PDF | |
| CDDIS MEaSUREs SESES products Weekly Coseismic Offset Time Series | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
Text | |
| CDDIS MEaSUREs SESES products weekly displacement grids time series | 1 | GLONASS, GPS, GROUND STATIONS | GLONASS RECEIVERS, GPS, GNSS RECEIVER | 1992-01-01 to Present |
N: 90 S: -90 E: 180 W: -180 |
netCDF, PDF, MP4 |
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Featured Geodetics Observation Method: GNSS
A Global Navigation Satellite System (GNSS) is a space geodesy technology that provides autonomous geospatial positioning around the world. One such system is the U.S. Global Positioning System (GPS), which is made up of 24 satellites, each traveling in a 12-hour orbit. A similar system is the GLObal NAvigation Satellite System (GLONASS) constellation consisting of 24 satellites. Each system is designed so that multiple satellites are within range of any point on Earth in order to precisely determine its location.
GNSS data can used to determine location and positioning around Earth as well as to study geophysics, the motions of tectonic plates and their displacements due to earthquakes, Earth orientation, and atmospheric properties among many other things.
GNSS data can used to determine location and positioning around Earth as well as to study geophysics, the motions of tectonic plates and their displacements due to earthquakes, Earth orientation, and atmospheric properties among many other things.
Join us on Wednesday, July 22, 2015 at 2pm ET to learn how to discover and access the real-time Global Navigation Satellite System (GNSS) data!
Join us to learn more about Global Navigation Satellite System (GNSS) radio occultation science and applications! We will highlight science impacts in the areas of numerical weather prediction, forecasting cyclone genesis, and space weather.
Join us on Sept. 28 to learn about the NASA Making Earth System Data Records (ESDR) for Use in Research Environments (MEaSUREs) Extended Solid Earth Science ESDR System (ESESES) project, whose Global Navigation Satellite System (GNSS)-derived data products enable research on tectonic motion, crustal deformation, earthquakes, tsunamis, sea level rise, extreme weather, and more!
This update to NASA's Crustal Dynamics Data Information System (CDDIS) archive makes accessing all RINEX data easier and more transparent for the Global Navigation Satellite System (GNSS) user community.
Geodetics Data Tools
| Tool Sort descending | Description | Services | |
|---|---|---|---|
| Earthdata Search | Earthdata Search enables data discovery, search, comparison, visualization, and access across NASA’s Earth science data holdings. | Search and Discovery, Access, Cataloging, Cloud Computing, Downloading | |
| Worldview | Worldview offers the capability to interactively browse over 1,200 global, full-resolution satellite imagery layers and download the underlying data. | Analysis, Search and Discovery, Visualization, Access, Comparison, Monitoring Natural Events |
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Frequently Asked Questions
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