<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type='text/xsl' href='/oai/static/oai2.xsl' ?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd">
  <responseDate>2026-06-01T16:17:23Z</responseDate>
  <request identifier="8672a8fc14b7b51e234ab1538ab0c153008f24e923d8f94f21cb0a77abd53b49" metadataPrefix="oai_ddi25" verb="GetRecord">https://datacatalogue.cessda.eu/oai-pmh/v0/oai</request>
  <GetRecord>
    <record>
    <header>
      <identifier>8672a8fc14b7b51e234ab1538ab0c153008f24e923d8f94f21cb0a77abd53b49</identifier>
      <datestamp>2025-06-17T03:26:06Z</datestamp>
      <setSpec>language:sv</setSpec><setSpec>openaire_data</setSpec>
    </header>
      <metadata>
        <codeBook xmlns="ddi:codebook:2_5" version="2.5" xsi:schemaLocation="ddi:codebook:2_5 http://www.ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd">
    <docDscr>
      <citation>
        <titlStmt>
          <titl xml:lang="sv">Observationer av "noctilucent clouds", Danmark 2011</titl>
        </titlStmt>
        <prodStmt>
          <producer xml:lang="en" abbr="SND">Swedish National Data Service</producer><producer xml:lang="sv" abbr="SND">Svensk nationell datatjänst</producer>
        </prodStmt>
        <holdings xml:lang="en" URI="https://doi.org/10.5879/6cmq-fk43">Landing page</holdings>
      </citation>
    </docDscr>
  <stdyDscr>
    <citation>
      <titlStmt>
        <titl xml:lang="sv">Observationer av "noctilucent clouds", Danmark 2011</titl>
        <parTitl xml:lang="en">Observations of Noctilucent Clouds from Denmark during 2011</parTitl>
        <IDNo xml:lang="en" agency="SND">ecds0082-1-1.0</IDNo><IDNo xml:lang="en" agency="DOI">https://doi.org/10.5879/6cmq-fk43</IDNo>
      </titlStmt>
      <rspStmt>
        <AuthEnty affiliation="Swedish Institute of Space Physics (IRF)" xml:lang="en">Dalin, Peter
        </AuthEnty><AuthEnty affiliation="Institutet för rymdfysik (IRF)" xml:lang="sv">Dalin, Peter
        </AuthEnty>
      </rspStmt>
      <prodStmt>
        <prodDate xml:lang="en"/>
      </prodStmt>
      <distStmt>
        <distrbtr abbr="SND" URI="https://snd.gu.se" xml:lang="en">Swedish National Data Service</distrbtr><distrbtr abbr="SND" URI="https://snd.gu.se" xml:lang="sv">Svensk nationell datatjänst</distrbtr>
        <distDate xml:lang="en" date="2019-05-08">2019-05-08</distDate>
      </distStmt>
      <verStmt>
      </verStmt>
      <holdings xml:lang="en" URI="https://doi.org/10.5879/6cmq-fk43">Landing page</holdings>
    </citation>
    <stdyInfo>
      <subject>
        <keyword xml:lang="en" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/548a3f85-bf22-473b-b641-45c32d9c6a0c">Particulate Matter</keyword><keyword xml:lang="sv" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/548a3f85-bf22-473b-b641-45c32d9c6a0c">Particulate Matter</keyword><keyword xml:lang="en" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/d6ab88c0-5a97-4f5e-8e4c-1c6fc6ed368f">Stratospheric Clouds (Observed/Analyzed)</keyword><keyword xml:lang="sv" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/d6ab88c0-5a97-4f5e-8e4c-1c6fc6ed368f">Stratospheric Clouds (Observed/Analyzed)</keyword><keyword xml:lang="en" vocab="GEMET" vocabURI="http://www.eionet.europa.eu/gemet/concept/12008">atmospheric aerosol</keyword><keyword xml:lang="sv" vocab="GEMET" vocabURI="http://www.eionet.europa.eu/gemet/concept/12008">atmosfärisk aerosol</keyword><keyword xml:lang="en" vocab="GEMET" vocabURI="http://www.eionet.europa.eu/gemet/concept/617">atmosphere</keyword><keyword xml:lang="sv" vocab="GEMET" vocabURI="http://www.eionet.europa.eu/gemet/concept/617">atmosfär</keyword><keyword xml:lang="en" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/2e5a401b-1507-4f57-82b8-36557c13b154">Aerosols</keyword><keyword xml:lang="sv" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/2e5a401b-1507-4f57-82b8-36557c13b154">Aerosols</keyword><keyword xml:lang="en" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/162e2243-3266-4999-b352-d8a1a9dc82ac">Clouds</keyword><keyword xml:lang="sv" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/162e2243-3266-4999-b352-d8a1a9dc82ac">Clouds</keyword><keyword xml:lang="en" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/c47f6052-634e-40ef-a5ac-13f69f6f4c2a">Atmosphere</keyword><keyword xml:lang="sv" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/c47f6052-634e-40ef-a5ac-13f69f6f4c2a">Atmosphere</keyword><keyword xml:lang="en" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/e9f67a66-e9fc-435c-b720-ae32a2c3d8f5">Earth Science</keyword><keyword xml:lang="sv" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/e9f67a66-e9fc-435c-b720-ae32a2c3d8f5">Earth Science</keyword><keyword xml:lang="en" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/1eb0ea0a-312c-4d74-8d42-6f1ad758f999">Science Keywords</keyword><keyword xml:lang="sv" vocab="GCMD" vocabURI="https://gcmdservices.gsfc.nasa.gov/kms/concept/1eb0ea0a-312c-4d74-8d42-6f1ad758f999">Science Keywords</keyword>
        <topcClas xml:lang="en" vocab="Standard för svensk indelning av forskningsämnen 2011">Other Physics Topics</topcClas><topcClas xml:lang="sv" vocab="Standard för svensk indelning av forskningsämnen 2011">Annan fysik</topcClas><topcClas xml:lang="en" vocab="Standard för svensk indelning av forskningsämnen 2011">Meteorology and Atmospheric Sciences</topcClas><topcClas xml:lang="sv" vocab="Standard för svensk indelning av forskningsämnen 2011">Meteorologi och atmosfärforskning</topcClas><topcClas xml:lang="en" vocab="INSPIRE topic categories" vocabURI="http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/geoscientificInformation">Geoscientific Information</topcClas><topcClas xml:lang="sv" vocab="INSPIRE topic categories" vocabURI="http://inspire.ec.europa.eu/metadata-codelist/TopicCategory/geoscientificInformation">Geovetenskap</topcClas><topcClas xml:lang="en" vocab="Standard för svensk indelning av forskningsämnen 2011">Earth and Related Environmental Sciences</topcClas><topcClas xml:lang="sv" vocab="Standard för svensk indelning av forskningsämnen 2011">Geovetenskap och miljövetenskap</topcClas><topcClas xml:lang="en" vocab="Standard för svensk indelning av forskningsämnen 2011">Physical Sciences</topcClas><topcClas xml:lang="sv" vocab="Standard för svensk indelning av forskningsämnen 2011">Fysik</topcClas><topcClas xml:lang="en" vocab="Standard för svensk indelning av forskningsämnen 2011">Natural Sciences</topcClas><topcClas xml:lang="sv" vocab="Standard för svensk indelning av forskningsämnen 2011">Naturvetenskap</topcClas>
      </subject>
      <abstract xml:lang="en">Observations of noctilucent clouds include images in the jpg format and a summary of their occurrence during summer season from the end of May to the middle of August. The time intervals between taken images are as follows: 3 min is from 20 May until 9 June; 1 min is from 10 June until 24 July; this is a high NLC season; 3 min is from 25 July until 15 August. Images for a given night are contained in a single folder. The name of the folder corresponds to the first date of a given night, i.e., 2011-06-01 is for the night 01/02 June 2011.  The data is divided into three zip packages, after collection period, and a zip package with readme file and excel file.  Images for a given night are contained in a single folder. The name of the folder corresponds to the first date of a given night, i.e., 2011-06-01 is for the night 01/02 June 2011.</abstract><abstract xml:lang="sv">Observationer av "noctilucent clouds", nattlysande moln,  i Danmark under maj till augusti 2011.  Se engelska katalogsidan för fullständig beskrivning: https://snd.gu.se/en/catalogue/study/ECDS0082  Data är uppdelade i tre zip-paket, efter insamlingsperiod, samt ett zip-paket med readme-fil och excelfil.</abstract>
      <sumDscr>
        <collDate xml:lang="en" date="2011-05-20" event="start">2011-05-20</collDate><collDate xml:lang="en" date="2011-06-09" event="end">2011-06-09</collDate><collDate xml:lang="en" date="2011-06-10" event="start">2011-06-10</collDate><collDate xml:lang="en" date="2011-07-24" event="end">2011-07-24</collDate><collDate xml:lang="en" date="2011-07-25" event="start">2011-07-25</collDate><collDate xml:lang="en" date="2011-08-15" event="end">2011-08-15</collDate>
        <nation xml:lang="en" abbr="DK">Denmark</nation><nation xml:lang="sv" abbr="DK">Danmark</nation>
      </sumDscr>
    </stdyInfo>
    <method>
      <dataColl>
      </dataColl>
    </method>
    <dataAccs>
      <useStmt>
        <restrctn xml:lang="en">Access to data through SND. Data are freely accessible.</restrctn><restrctn xml:lang="sv">Åtkomst till data via SND. Data är fritt tillgängliga.</restrctn>
      </useStmt>
    </dataAccs>
    <othrStdyMat>
    </othrStdyMat>
  </stdyDscr>
  <fileDscr>
  </fileDscr>
</codeBook>
      </metadata>
      <about>
        <provenance xmlns="http://www.openarchives.org/OAI/2.0/provenance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/provenance http://www.openarchives.org/OAI/2.0/provenance.xsd">
    <originDescription harvestDate="2025-06-17T03:26:06Z" altered="true">
      <baseURL>https://snd.gu.se</baseURL>
      <identifier>ecds0082-1</identifier>
      <datestamp>2020-05-15T13:49:51Z</datestamp>
      <metadataNamespace>ddi:codebook:2_5</metadataNamespace>
    </originDescription>
</provenance>
      </about>
    </record>
  </GetRecord>
</OAI-PMH>