OGC TimeseriesML 1.2 is an OGC Standard. Copyright (c) 2015, 2016, 2019 Open Geospatial Consortium. To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ . The Domain Range Encoding schema contains types suitable for encoding TimeSeries (both Measurement and Categorical) in a domain (times), range (values) block. This schema extends the OGC GMLCov schema. TimeseriesMetadataExtension enables use of TimeseriesML metadata classes in GMLCov XML schema. The associated XML examples demonstrate how this is applied in practice. Default metadata for each point in the timeseries. Metadata applicable to the whole timeseries or individual regularly spaced segments of an irregularly spaced whole timeseries. An annotation coverage corresponding to points on the timeseries. An annotation coverage can be used to apply metadata to individual points in the timeseries. The TimeseriesDomainRange element extends the OGC coverage model with metadata extensions for timeseries data. The metadata classes are the same as for the time, value pair encoding. If present, the sub-element 'type' shall indicate the class of timeseries. A register of type identifiers corresponding with the timeseries types in TimeseriesML 1.2, is provided by OGC at http://www.opengis.net/def/timeseriesType/timeseriesML/1.2/ Metadata extension to accommodate TimeseriesML 1.2 metadata classes. A list of dateTime instances gml:TimeInstant acts as a zero-dimensional geometric primitive that represents an identifiable position in time. A list of Time Periods gml:TimePeriod acts as a one-dimensional geometric primitive that represents an identifiable span of time.