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. It also contains the description and list of all the IERS stations.

Following the procedure already used for previous ITRF solutions, the ITRF2020 uses as input data time series of station positions and Earth Orientation Parameters (EOPs) provided by the Technique Centers of the four space geodetic techniques (VLBI, SLR, GNSS and DORIS), as well as local ties at colocation sites.

ITRF2008 is the new realization of the International Terrestrial Reference System. Following the procedure already used for the ITRF2005 formation, the ITRF2008 uses as input data time series of station positions and EOPs provided by the Technique Centers of the four space geodetic techniques (GPS, VLBI, SLR, DORIS).

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.

ITRF is the basis for modern national geodetic systems and the metrological basis for any position based information, including mapping, 3D modeling, and GIS. The ITRF provides the foundation for nearly all ground-based and space-based observations in Earth system science and supports a variety of applications, such as: land surveying ...

2023年11月28日 · 本文介绍了ITRF官网的内容，主要关注不同系列之间的区别（如ITRF2014及后续版本考虑地震影响），强调了数据时长和解算软件的演变，以及如何找到各系列使用的站点信息，重点提及了参数转换的注意事项和时间关系。

ITRF2014 solution provides the usual/classical estimates: station positions at a given epoch (2010.0, for ITRF2014), station velocities and EOPs.

国际地球自转服务组织（IERS）每年将其所属全球站的观测数据进行综合处理分析，得到一个ITRF框架，并以IERS年报和IERS技术备忘录的形式发布。

ITRF2020-u2023 is the first ITRF020 update, generated by adding three years (2021.0 – 2024.0) of data after the end of the ITRF2020 input data.

2023年10月30日 · Depuis 1985, l’IGN calcule le repère international de référence terrestre (ITRF) au profit de toute la communauté scientifique. Ce repère permet de déterminer la montée du niveau de la mer, les mouvements des plaques tectoniques, les déplacements provoqués par les séismes, la fonte des calottes polaires ou l’élévation des sols.