Geodetics - NASA Earthdata
Dec 12, 2025 · Geodetics, or geodesy, is the science of studying Earth’s shape, gravity and its effect on phenomena such as polar motion, waterbody tides, and tectonic motion in three-dimensional space …
Daily GNSS Geodetic Displacement Time Series Product
Daily GNSS Geodetic Displacement Time Series Product Access daily, combined, cleaned, filtered, GIPSY-GAMIT long-term time series of Continuous GNSS station positions (global and regional) in …
Space Geodesy Techniques - NASA Earthdata
Data provided by space geodesy techniques are used to support scientific and societal applications in areas such as Earth observations, positioning, navigation, and timing.
Beacons in the Sky Help Monitor Earth's Orientation in Space
Dec 27, 2020 · In addition to VLBI telescopes, this terrestrial framework includes three other space-geodetic techniques and their instruments: Satellite Laser Ranging (SLR) telescopes, Global …
Very Long Baseline Interferometry | NASA Earthdata
Very Long Baseline Interferometry (VLBI) is a geometric technique that measures the time difference between the arrival at two Earth-based antennas of a radio wavefront emitted by a distant quasar.
VLBI National Geodetic Survey Data - NASA Earthdata
NASA’s Crustal Dynamics Data Information System (CDDIS) archives Very Long Baseline Interferometry (VLBI) National Geodetic Survey (NGS) data holdings.
Jason-1 GDR version E NetCDF Geodetic - NASA Earthdata
Description The Jason-1 Geophysical Data Records (GDR) Geodetic Mission contain full accuracy altimeter data, with a high precision orbit, provided approximately 35 days after data collection. The …
Jason-1 SGDR version E NetCDF Geodetic - NASA Earthdata
May 7, 2012 · The Sensory Geophysical Data Record (SGDR) files from the Geodetic Mission contain full accuracy altimeter data, with a high precision orbit. The instruments on Jason-1 make direct …
Jason-1 GDR SSHA version E NetCDF Geodetic - Earthdata
Description These Sea Surface Height Anomalies (SSHA) are derived from the Jason-1 Geophysical Data Record (GDR) Geodetic Mission. Jason-1 is an altimetric mission whose instruments make …
ESESES MEaSUREs Products - NASA Earthdata
ESESES MEaSUREs Products Time series of geodetic station positions, velocity fields, strain and strain rate, and time series offsets are made possible by NASA's MEaSUREs program.