ETRS89ään

ETRS89ään refers to the Finnish translation of ETRS89, which is the official geodetic datum for the European Union. ETRS89 stands for the European Terrestrial Reference System 1989. It is a geodetic datum that defines the coordinate system for measuring locations in Europe. The primary characteristic of ETRS89 is its stability. Unlike older datums that were tied to fixed points on the Earth's surface, ETRS89 is fixed to the stable European tectonic plate. This means that coordinates defined within ETRS89 do not change over time due to continental drift.

In Finland, ETRS89 is used as the reference system for all official mapping and geospatial data. The Finnish implementation of ETRS89 is often referred to as ETRS89ään to signify its adoption and usage within Finland. This ensures consistency and accuracy in national spatial referencing. When using Finnish geospatial data, especially for official purposes, it is crucial to be aware of and use the ETRS89ään datum. This is essential for accurate integration and analysis of data, particularly when combining it with data from other regions or countries that may use different geodetic systems. The adoption of ETRS89ään aligns Finland with the broader European standard for geodetic referencing.