PCN index

<?xml version="1.0" encoding="UTF-8"?>
<Computation xmlns="https://metadata.pithia.eu/schemas/2.2" xmlns:gml="http://www.opengis.net/gml/3.2" xmlns:xlink="http://www.w3.org/1999/xlink">
    <identifier>
        <PITHIA_Identifier>
            <localID>Computation_PCN_Index</localID>
            <namespace>jfw</namespace>
            <version>1</version>
            <creationDate>2025-03-11T11:24:00Z</creationDate>
            <lastModificationDate>2025-04-16T17:28:00Z</lastModificationDate>
        </PITHIA_Identifier>
    </identifier>
    <name>PCN index</name>
    <description>The PCN index is deduced from the deviations in the horizontal H and D magnetic field components from the quiet level at the Thule, Greenland, polar cap observatory.</description>
    <capabilityLinks>
        <capabilityLink>
            <platform xlink:href="https://metadata.pithia.eu/resources/2.2/platform/jfw/Platform_Qaanaaq_Greenland_Geomagnetic_Observatory"/>
            <computationCapabilities xlink:href="https://metadata.pithia.eu/resources/2.2/computationCapabilities/jfw/ComputationCapabilities_Polar_Cap_North_Geomagnetic_Index"/>
            <timeSpan frame="#ISO-8601">
                <gml:beginPosition frame="#ISO-8601">2013-03-25</gml:beginPosition>
                <gml:endPosition indeterminatePosition="unknown" frame="#ISO-8601"/>
            </timeSpan>
        </capabilityLink>
    </capabilityLinks>
</Computation>