The objective of this web site is to distribute the International Terrestrial Reference Frame (ITRF) products. ITRF94 , ITRF96 , ITRF97 , ITRF2000 , ITRF2005 , ITRF2008 , ITRF2014 , ITRF2020 and ITRF2020-u2023 solutions are available for download.

Post-Seismic Deformation (PSD) models for stations subject to major earthquakes were determined by fitting GNSS/IGS data. The PSD models were then applied to the 3 other technique time series at earthquake colocation sites.

An International Terrestrial Reference Frame (ITRF) is a realization of the ITRS. Its origin is at the center of mass of the whole earth including the oceans and atmosphere. New ITRF solutions are produced every few years, using the latest mathematical and surveying techniques to attempt to realize the ITRS as precisely as possible.

ITRF is the basis for modern national geodetic systems and the metrological basis for any position based information, including mapping, 3D modeling, and GIS.

Jun 3, 2024 · Geodetic frames such as ITRF and WGS84 significantly impact surveying and mapping accuracy around the world, while local reference frames such as NAD27 provide tailored geographic references that enhance the accuracy of North American surveying/GIS projects. ITRF and WGS84 also work well for robotics, drones, and self-driving cars.

Oct 25, 2023 · ITRF is a set of physical points with precisely determined coordinates in a specific coordinate system (cartesian, geographic, mapping...) attached to a Terrestrial Reference System. New ITRF solutions are produced every few years, using the latest mathematical and surveying techniques to attempt to realize the ITRS as precisely as possible. 2.

• Key points of GNSS/IGS contribution to the ITRF • ITRF2020: – Input data – GNSS contribution – An augmented parametric frame modeling nonlinear station motions – Scale • Conclusion

Each reference frame station plays a valuable role in contributing to and accessing the ITRF, and may be considered some of the highest-quality GNSS stations in the world. This quality directly impacts the level of accuracy that can be achieved by using the ITRF.

Since 1994, the International GNSS Service (IGS) has provided precise GPS orbit products to the scientific community with increased precision and timeliness.

Access the ITRF 2014 epoch coordinate reference system. The ITRF 2014 is one of the most advanced and accessible versions of ITRF, and it works with various GNSS (Global Navigation Satellite Systems) and RTK solutions like Point One Navigation’s Polaris.