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    <gcmd:termsOfUse>https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf</gcmd:termsOfUse>
    <gcmd:keywordVersion>23.7</gcmd:keywordVersion>
    <gcmd:schemeVersion>2026-04-15T10:53:30.610Z</gcmd:schemeVersion>
    <gcmd:viewer>https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/sciencekeywords/a60ae1b6-abfc-4905-8c09-772da7bb1a10</gcmd:viewer>
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  <skos:Concept rdf:about="a60ae1b6-abfc-4905-8c09-772da7bb1a10">
    <skos:broader rdf:resource="457883c4-b30c-4d26-bed8-6c2887ebbc90"/>
    <skos:prefLabel xml:lang="en">FLUORESCENCE</skos:prefLabel>
    <skos:changeNote>Date=2026-02-18 User Id=system System Note=Added narrower relation from FLUORESCENCE [a60ae1b6-abfc-4905-8c09-772da7bb1a10] to MACROALGAE FLUORESCENCE [092956f8-767b-4c43-94d3-72d5f8dba898]</skos:changeNote>
    <gcmd:reference gcmd:text="Adapted from: Webster&apos;s College Dictionary. 1991. Random House." xml:lang="en"/>
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    <skos:definition xml:lang="en">The emission of radiation, especially of visible light, by a substanceduring exposure to external radiation, as light or x-rays. Since thechlorophyll molecule fluoresces, the measurement of fluorescence can beused to calculate chlorophyll concentration in the ocean.</skos:definition>
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