The coordinate of a point in the space relating to its position east or west of a reference meridian. In the Gauss-Krüger system the xvalue is called “easting”, in the UTM system it’s called “false easting”. (see also y-value, zvalue)
CEDIM - Center for Disaster Management and Risk Reduction Technology, GFZ German Research Centre for Geosciences (Section 2.1 Earthquake Risk and Early Warning), CEDIM-Glossary (Terms and Definitions of Risk Sciences), Karlsruhe Institute of Technology (KIT), D-76128 Karlsruhe, Germany 2005. http: //www.cedim.de/download/glossar-gesamt-20050624.pd f, (Rsk Sci - Brit) {792}