om_extended.xsd The Observations Schema Extensions schema. This document includes the * the extensions to define specialized observations with constrained result types * specialized procedure types * coverage-observations Observation Extensions is an OGC Standard. Copyright (c) 2007,2008,2010 Open Geospatial Consortium, Inc. All Rights Reserved. To obtain additional rights of use, visit http://www.opengeospatial.org/legal/ .