<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSpy v2005 rel. 3 U (http://www.altova.com) by Yungjae Cho (ENVIRONMENT CANADA) -->
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
	<xsd:complexType name="supplementary-metadataType">
		<xsd:sequence>
			<xsd:element name="data-owner" type="contactType"/>
			<xsd:choice maxOccurs="unbounded">
				<xsd:element name="conversion-definitions">
					<xsd:complexType>
						<xsd:sequence>
							<xsd:element name="conversion-table" type="conversion-tableType" maxOccurs="unbounded"/>
						</xsd:sequence>
					</xsd:complexType>
				</xsd:element>
				<xsd:element name="categorical-definitions">
					<xsd:complexType>
						<xsd:sequence>
							<xsd:element name="categorical-table" type="categorical-tableType" maxOccurs="unbounded"/>
						</xsd:sequence>
					</xsd:complexType>
				</xsd:element>
				<xsd:element name="sampling-definitions">
					<xsd:complexType>
						<xsd:sequence>
							<xsd:element name="sampling-table" type="sampling-tableType" maxOccurs="unbounded"/>
						</xsd:sequence>
					</xsd:complexType>
				</xsd:element>
			</xsd:choice>
		</xsd:sequence>
	</xsd:complexType>
	<xsd:complexType name="categorical-tableType">
		<xsd:sequence>
			<xsd:element ref="categorical-key"/>
			<xsd:element name="value" type="valueCategoryType" maxOccurs="unbounded"/>
		</xsd:sequence>
		<xsd:attribute name="units" type="unitType" use="required"/>
	</xsd:complexType>
	<xsd:element name="categorical-key" type="xsd:string"/>
	<xsd:complexType name="valueCategoryType">
		<xsd:simpleContent>
			<xsd:extension base="xsd:string">
				<xsd:attribute name="category" type="non-emptyString" use="required"/>
			</xsd:extension>
		</xsd:simpleContent>
	</xsd:complexType>
	<xsd:complexType name="conversion-tableType">
		<xsd:sequence>
			<xsd:element ref="conversion-key"/>
			<xsd:sequence maxOccurs="unbounded">
				<xsd:element name="start-value" type="xsd:anyType"/>
				<xsd:element name="end-value" type="xsd:anyType"/>
				<xsd:element name="equivalent-value" type="xsd:string"/>
			</xsd:sequence>
		</xsd:sequence>
		<xsd:attribute name="units" type="unitType" use="required"/>
	</xsd:complexType>
	<xsd:element name="conversion-key" type="xsd:string"/>
	<xsd:complexType name="sampling-tableType">
		<xsd:sequence>
			<xsd:element ref="sampling-key"/>
			<xsd:element name="sampling-interval">
				<xsd:complexType>
					<xsd:simpleContent>
						<xsd:extension base="xsd:nonNegativeInteger">
							<xsd:attribute name="units" type="unitType" default="min"/>
						</xsd:extension>
					</xsd:simpleContent>
				</xsd:complexType>
			</xsd:element>
			<xsd:element name="number-of-samples" type="xsd:nonNegativeInteger"/>
			<xsd:element name="sampling-start" type="xsd:nonNegativeInteger"/>
		</xsd:sequence>
	</xsd:complexType>
	<xsd:element name="sampling-key" type="xsd:string"/>
</xsd:schema>
