<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:skos="http://www.w3.org/2004/02/skos/core#" xmlns:gcmd="https://gcmd.earthdata.nasa.gov/kms#" xmlns:dcterms="http://purl.org/dc/terms/" xml:base="https://gcmd.earthdata.nasa.gov/kms/concept/">
  <gcmd:gcmd>
    <gcmd:termsOfUse>https://cdn.earthdata.nasa.gov/conduit/upload/5182/KeywordsCommunityGuide_Baseline_v1_SIGNED_FINAL.pdf</gcmd:termsOfUse>
    <gcmd:keywordVersion>draft</gcmd:keywordVersion>
    <gcmd:schemeVersion>2025-07-25</gcmd:schemeVersion>
    <gcmd:viewer>https://gcmd.earthdata.nasa.gov/KeywordViewer/scheme/platforms/42d69b0f-8603-4c47-a352-ffaa99786a73</gcmd:viewer>
  </gcmd:gcmd>
  <skos:Concept rdf:about="42d69b0f-8603-4c47-a352-ffaa99786a73">
    <skos:broader rdf:resource="6175c78e-432c-4254-b442-40d3cf0f6b34"/>
    <skos:prefLabel xml:lang="en">Twin Otter</skos:prefLabel>
    <skos:changeNote>Date=2026-01-26 User Id=system System Note=Added broader relation from Twin Otter [42d69b0f-8603-4c47-a352-ffaa99786a73] to Propeller [6175c78e-432c-4254-b442-40d3cf0f6b34]</skos:changeNote>
    <skos:changeNote>Date=2026-01-26 User Id=tstevens User Note=added new platform keyword</skos:changeNote>
    <gcmd:reference gcmd:text="https://www.omao.noaa.gov/aircraft-operations/aircraft/de-havilland-dhc-6-300-twin-otter https://www.neonscience.org/data-collection/airborne-remote-sensing" xml:lang="en"/>
    <skos:definition xml:lang="en">Twin Otter refers to a diverse family of aircraft developed by de Havilland Canada that are widely utilized across several organizations. The Twin Otter is a versatile, twin-engine turboprop aircraft utilized by NASA, NOAA, and the Center for Interdisciplinary Remotely Piloted Aircraft Studies (CIRPAS) for ecosystem, atmospheric, and oceanographic research. Renowned for its stability at low-speed and low-altitude, short takeoff/landing (STOL) capabilities, and versatile payload capacity, these agencies operate them to support specialized scientific airborne missions.</skos:definition>
    <dcterms:modified>2026-01-26T13:48:34.641Z</dcterms:modified>
    <skos:inScheme rdf:resource="https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/platforms"/>
    <gcmd:altLabel gcmd:text="Twin Otter" xml:lang="en" gcmd:category="primary"/>
  </skos:Concept>
</rdf:RDF>