<xs:complexType name="WaterGroundSurfaceType">
	<xs:annotation>
		<xs:documentation>Type describing the ground surface of a water body, i.e. the boundary to the digital terrain model. As
			subclass of _CityObject, a WaterGroundSurface inherits all attributes and relations, in particular an id, names, external
			references, and generalization relations. </xs:documentation>
	</xs:annotation>
	<xs:complexContent>
		<xs:extension base="AbstractWaterBoundarySurfaceType">
			<xs:sequence>
				<xs:element ref="_GenericApplicationPropertyOfWaterGroundSurface" minOccurs="0" maxOccurs="unbounded"/>
			</xs:sequence>
		</xs:extension>
	</xs:complexContent>
</xs:complexType>