EPSG Dataset :: v12.042test

EPSG Geodetic Parameter Dataset

CAUTION: This is a test site. The official EPSG database is at https://epsg.org/

USE ONLY FOR TESTING. THE DATA ON THIS SITE MAY NOT BE CORRECT.

The EPSG Dataset

The IOGP's EPSG Geodetic Parameter Dataset is a collection of definitions of coordinate reference systems and coordinate transformations which may be global, regional, national or local in application.The EPSG Geodetic Parameter Dataset is maintained by the Geodesy Subcommittee of the IOGP Geomatics Committee.

Recent changes to the EPSG Dataset can be viewed in Release Information History Table.

Geodetic Awareness

This short explanation of why geodesy is important to safely merge and co-visualize datasets.

An introduction to Geodesy is provided in (IOGP Geomatics Guidance Note 373-1 Geodetic Awareness).

User Registration

To gain access to the EPSG data through these web pages, you must agree to the Terms of Use by registering on this site. Once logged in, you will have access to additional functionality and may also manage your account including your subscription to EPSG updates.

To register, you must enter your email address (visible to IOGP) and password (not visible). This information is not used outside this site, nor is it passed on to any third party.

Click here to register.

About this site

This site contains the master EPSG Dataset. Its data model follows the ISO 19111:2019 international standard for referencing by coordinates, including its provision for dynamic datums, geoid-based vertical datums, datum ensembles and derived projected coordinate reference systems. EPSG Dataset versions 10.0 and later follow this data model. It is generally backward compatible with the previous 19111:2007 model data model but has some modifications and additional elements. For an overview of the model changes see here.

EPSG Dataset versions v10.003 in the 2019 model and v9.9.1 in the 2007 data model released in September 2020 contain the same data. Both are available from the Dataset Archives. Subsequent data releases including the current one have been made only in the new data model.

The software for this site is subject to continuous improvement and from time to time small changes in functionality may be made.

GeoRepository API

Software developers can find the RESTful GeoRepository API here (swagger).

Wildcard	Example
% or *	Any wildcard characters
? or _	One wildcard character
[ - ]	[ - ] Range e.g. N[a-c] will return all geodetic objects that contains a string starting with the letter 'N' or 'n' followed by any of the letters contained within the range specified within the square bracket, e.g. letters a, b and c.
\|	Or e.g. E[a\|e]M will return all geodetic objects that contains a string starting with the letter E(e), ends with the letter M(m) and also contain either the letter a or letter e.