| Source | XML Namespace | Default namespace prefix
|
| XML Schema | http://www.w3.org/2001/XMLSchema | xsd
|
| Schematron | http://purl.oclc.org/dsdl/schematron | sch
|
| XSLT v2 | http://www.w3.org/1999/XSL/Transform | xsl
|
| XML Linking Language | http://www.w3.org/1999/xlink | xlink
|
| OGC GML 3.2.1 | http://www.opengis.net/gml/3.2 | gml
|
| ISO/TS 19139:2007 metadata XML schema implementation | http://www.isotc211.org/2005/gmd | gmd
|
| OGC SWE Common | http://www.opengis.net/swe/2.0 | swe
|
| OGC OMXML Observations and Measurements | http://www.opengis.net/om/2.0 | om
|
| OGC OMXML Sampling Features | http://www.opengis.net/sampling/2.0 | sf
|
| OGC OMXML Spatial Sampling Features | http://www.opengis.net/samplingSpatial/2.0 | sams
|
| OGC GML Application Schema - Coverages (1.0) | http://www.opengis.net/gmlcov/1.0 | gmlcov
|
| ICAO WXXM | http://data.wmo.int/iwxxm/1.0RC1 | iwxxm
|
| Simple aviation features | http://data.wmo.int/saf/1.0RC1 | saf
|
| WMO Meteorological Basic Types | http://data.wmo.int/def/met-basic/1.0RC1 | met-basic
|
| WMO Observable Property Model | http://data.wmo.int/def/opm/1.0RC1 | opm
|
| WMO METCE | http://data.wmo.int/def/metce/1.0RC1 | metce |
