EISCAT Dynasonde observations

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    <identifier>
        <PITHIA_Identifier>
            <localID>Project_EISCAT_Dynasondes</localID>
            <namespace>eiscat</namespace>
            <version>2</version>
            <creationDate>2022-09-02T08:41:00Z</creationDate>
            <lastModificationDate>2025-01-16T11:11:00Z</lastModificationDate>
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    </identifier>
    <name>EISCAT Dynasonde observations</name>
    <shortName>EISCAT Dynasondes</shortName>
    <abstract>The EISCAT ionosonde observes the ionosphere in short intervals (down to 2 minutes). The receiver is a antenna array where the  Dynasonde algorithms (DSND, NeXtYZ etc) are applied to retrieve ionospheric parameters including electron density and ionospheric irregularities. Tha data are searchable in an online database.</abstract>
    <description>EISCAT operates a digital HF sounder at the main site at Ramfjordmoen near Troms&#248;. Until 2015 there was also a similar instrument at the Svalbard site. The instrument is normally used for regular ionosoundings, but can also be reconfigured for other purposes.
The data are freely available through an online database.</description>
    <URL>
        <gmd:URL>https://dynserv.eiscat.uit.no</gmd:URL>
    </URL>
    <documentation>
        <Citation>
            <gmd:title>
                <gco:CharacterString>The Troms&#248; Dynasonde</gco:CharacterString>
            </gmd:title>
            <gmd:date>
                <gmd:CI_Date>
                    <gmd:date>
                        <gco:Date>2008-03-14</gco:Date>
                    </gmd:date>
                    <gmd:dateType>
                        <gmd:CI_DateTypeCode codeList="" codeListValue="">Publication Date</gmd:CI_DateTypeCode>
                    </gmd:dateType>
                </gmd:CI_Date>
            </gmd:date>
            <gmd:identifier>
                <gmd:MD_Identifier>
                    <gmd:code>
                        <gco:CharacterString>doi:10.1016/j.polar.2008.02.001</gco:CharacterString>
                    </gmd:code>
                </gmd:MD_Identifier>
            </gmd:identifier>
            <gmd:otherCitationDetails>
                <gco:CharacterString>M.T. Rietveld, J.W. Wright, N. Zabotin, M.L.V. Pitteway, The Troms&#248; Dynasonde. Polar Science, vol. 2, issue 1, March 2008, pp. 55-71.</gco:CharacterString>
            </gmd:otherCitationDetails>
            <onlineResource>
                <gmd:CI_OnlineResource>
                    <gmd:linkage>
                        <gmd:URL>https://doi.org/10.1016/j.polar.2008.02.001</gmd:URL>
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            </onlineResource>
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    </documentation>
    <keywords>
        <gmd:MD_Keywords>
            <gmd:keyword>
                <gco:CharacterString>Ionosphere</gco:CharacterString>
            </gmd:keyword>
            <gmd:keyword>
                <gco:CharacterString>Bottomside</gco:CharacterString>
            </gmd:keyword>
            <gmd:type>
                <gmd:MD_KeywordTypeCode codeList="#pr1" codeListValue="Observed Region"/>
            </gmd:type>
        </gmd:MD_Keywords>
    </keywords>
    <keywords>
        <gmd:MD_Keywords>
            <gmd:keyword>
                <gco:CharacterString>Dynasonde</gco:CharacterString>
            </gmd:keyword>
            <gmd:type>
                <gmd:MD_KeywordTypeCode codeList="#pr1" codeListValue="Instrument"/>
            </gmd:type>
        </gmd:MD_Keywords>
    </keywords>
    <keywords>
        <gmd:MD_Keywords>
            <gmd:keyword>
                <gco:CharacterString>Ionospheric Specification</gco:CharacterString>
            </gmd:keyword>
            <gmd:keyword>
                <gco:CharacterString>Ionospheric Observations</gco:CharacterString>
            </gmd:keyword>
            <gmd:keyword>
                <gco:CharacterString>HF Radio Wave Propagation</gco:CharacterString>
            </gmd:keyword>
            <gmd:type>
                <gmd:MD_KeywordTypeCode codeList="#pr1" codeListValue="Miscellaneous"/>
            </gmd:type>
        </gmd:MD_Keywords>
    </keywords>
    <keywords>
        <gmd:MD_Keywords>
            <gmd:keyword>
                <gco:CharacterString>Ionograms</gco:CharacterString>
            </gmd:keyword>
            <gmd:keyword>
                <gco:CharacterString>Ionogram-Derived Data</gco:CharacterString>
            </gmd:keyword>
            <gmd:keyword>
                <gco:CharacterString>Ionosperic Irregularity Parameters</gco:CharacterString>
            </gmd:keyword>
            <gmd:keyword>
                <gco:CharacterString>Bulk Plasma Velocities</gco:CharacterString>
            </gmd:keyword>
            <gmd:type>
                <gmd:MD_KeywordTypeCode codeList="#pr1" codeListValue="Products"/>
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            <role xlink:href="https://metadata.pithia.eu/ontology/2.2/relatedPartyRole/DataProvider"/>
            <party xlink:href="https://metadata.pithia.eu/resources/2.2/organisation/pithia/Organisation_EISCAT"/>
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            <party xlink:href="https://metadata.pithia.eu/resources/2.2/individual/eiscat/Individual_Thomas_Ulich"/>
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