[FIG(quote)[ [1] [[ISO 19111:2019]]
>
:3.1.64 temporal coordinate system:
<geodesy> one-dimensional [[coordinate system]] where the [[axis]] is [[time]]


]FIG]

[2] [CITE@en[OGC Abstract Specification Topic 2: Referencing by coordinates]] ([TIME[2019-02-25 14:52:07 +09:00]]) <http://docs.opengeospatial.org/as/18-005r4/18-005r4.html>

[3] [[ISO 19111]] では3種類に対応しています。 [SRC[>>2]]

- [CODE[DateTimeTemporalCS]]
- [CODE[TemporalCountCS]]
- [CODE[TemporalMeasureCS]]

[4] 本項 ([[ISO 19111]] の意味) と [[ISO 19108]] の意味は異なります。 [SRC[>>1]]

> This document and ISO 19108:2002 use the term 
temporal coordinate system to describe different concepts. A 19108:2002 temporal coordinate system maps to this document’s [[temporal coordinate reference system]].