DORIS Earth Orientation Parameters Time Series from NASA CDDIS

NASA's Crustal Dynamics Data Information System provides a time series of Earth orientation parameters derived from the DORIS satellite system. This dataset is generated by the International DORIS Service through the combination of solutions from multiple Analysis Centers. The product is available in text format and is hosted on multiple authoritative government data platforms.

Use Cases

• Modeling polar motion and Earth rotation variations using time-series EOP data.
• Analyzing crustal motion and plate tectonics by integrating precise satellite positioning measurements.
• Calibrating and validating other geodetic observation systems like GNSS or VLBI.
• Studying the Earth's gravitational field and its influence on satellite orbits.

Strengths

• Data is produced by the official International DORIS Service (IDS) through a combination of solutions from multiple Analysis Centers.
• Derived from a globally distributed network of ground beacons, ensuring wide spatial coverage for measurements.

Limitations

• Specific row counts, file sizes, and detailed column names are not provided by any source.
• License is ambiguously listed as 'other-license-specified' without clear terms.

Provenance

Source

NASA Crustal Dynamics Data Information System (CDDIS) / International DORIS Service (IDS)

Collection Method

Dual-frequency Doppler measurements from satellite receivers tracking a global network of ground beacons, processed and combined by IDS Analysis Centers.

Time Range

null

Freshness

2026-03-13 01:46:26.145296

Geography

Global