<!--Created with Liquid XML Studio - Developer Pro Edition 7.1.0.1135 (http://www.liquid-technologies.com)-->
<!--   **********************************************************************   
                                                                           
       DWML.xsd - Top level XML Schema for Digital Weather Markup Language   

       John L. Schattel          MDL                4 August 2004  
       Red Hat Linux                                Apache Server  
       
       Paul Hershberg            MDL                11 July 2007
         -Added keyref for new <moreWeatherInformation> element.

      *************************************************************************   -->
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <xsd:include schemaLocation="meta_data.xsd" />
  <xsd:include schemaLocation="ndfd_data.xsd" />
  <xsd:simpleType name="latLonListType">
    <xsd:restriction base="xsd:string">
      <xsd:annotation>
        <xsd:documentation xml:lang="en">
               This expression enforces a space delimited list 
               of latitude longitude pairs.  The latitude and
               longitude values are delimited by a comma
               (i.e. 38.00,-100.00 40.00,-78.00)
            </xsd:documentation>
      </xsd:annotation>
      <xsd:pattern value="[\-]?\d{1,2}\.\d+,[\-]?\d{1,3}\.\d+( [\-]?\d{1,2}\.\d+,[\-]?\d{1,3}\.\d+)*" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:simpleType name="cityNameListType">
    <xsd:restriction base="xsd:string">
      <xsd:annotation>
        <xsd:documentation xml:lang="en">
               This expression enforces a coma delimited list city names.
               The city names are ordered to match the cities latitude 
               and longitude value in the accompanying latLonListType element
               (i.e. Dallas,Los Angeles,Salt Lake City)
            </xsd:documentation>
      </xsd:annotation>
      <xsd:pattern value="[a-zA-Z'\-]*( ?[a-zA-Z'\-]*)*,[A-Z][A-Z](\|[a-zA-Z'\-]*( ?[a-zA-Z'\-]*)*,[A-Z][A-Z])*" />
    </xsd:restriction>
  </xsd:simpleType>
  <xsd:element name="dwml">
    <xsd:complexType>
      <xsd:choice>
        <xsd:sequence>
          <xsd:element minOccurs="1" maxOccurs="1" name="head" type="headType" />
          <xsd:element minOccurs="1" maxOccurs="1" name="data" type="dataType">
            <xsd:keyref name="applicable-locationKey" refer="locationKey">
              <xsd:selector xpath="data/parameters" />
              <xsd:field xpath="@applicable-location" />
            </xsd:keyref>
            <xsd:keyref name="moreWeatherInformationKey" refer="locationKey">
              <xsd:selector xpath="data/moreWeatherInformation" />
              <xsd:field xpath="@applicable-location" />
            </xsd:keyref>
            <xsd:key name="locationKey">
              <xsd:selector xpath=".//location" />
              <xsd:field xpath="location-key" />
            </xsd:key>
            <xsd:keyref name="applicable-timeKey" refer="timeKey">
              <xsd:selector xpath="data/parameters/*" />
              <xsd:field xpath="@time-layout" />
            </xsd:keyref>
            <xsd:key name="timeKey">
              <xsd:selector xpath=".//time-layout" />
              <xsd:field xpath="layout-key" />
            </xsd:key>
          </xsd:element>
        </xsd:sequence>
        <xsd:sequence>
          <xsd:element minOccurs="0" maxOccurs="1" name="minResolution" type="xsd:decimal" />
          <xsd:element name="latLonList" type="latLonListType" />
          <xsd:element minOccurs="0" maxOccurs="1" name="cityNameList" type="cityNameListType" />
        </xsd:sequence>
      </xsd:choice>
      <xsd:attribute default="1.0" name="version" type="xsd:string" />
    </xsd:complexType>
  </xsd:element>
</xsd:schema>

• dwml

• cityNameListType
• latLonListType