@prefix mdl: <http://data.loterre.fr/ark:/67375/MDL> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

mdl: a skos:ConceptScheme .
mdl:-QHGR3SBR-Z
  skos:exactMatch <https://fr.wikipedia.org/wiki/Granulation_solaire>, <https://en.wikipedia.org/wiki/Solar_granule>, <http://astrothesaurus.org/uat/1498> ;
  skos:prefLabel "solar granulation"@en, "granulation solaire"@fr ;
  skos:definition "La granulation solaire est visible à la surface du Soleil (sur la photosphère) comme une structure de grains brillants (chauds) cernés par des zones plus sombres et étroites, les intergranules. Elle est constituée de cellules ascendantes de plasma chaud (de 5 000 à 6 000 kelvins) entourées de plasma plus froid (environ 400 kelvins de moins que le centre des granules). La taille de ces granules est comprise entre quelques centaines de kilomètres pour les plus petits jusqu’à environ 2 000 km pour les plus gros. Leur taille moyenne généralement admise est de 1 000 km (soit environ 1,3 arcsec vu depuis la Terre). (Wikipedia, L'Encylopédie Libre, <a href=\"https://fr.wikipedia.org/wiki/Granulation_solaire\" target=\"_blank\">https://fr.wikipedia.org/wiki/Granulation_solaire</a>)"@fr, "A granule is a convection cell in the Sun's photosphere. They are caused by convection currents of plasma in the Sun's convective zone, directly below the photosphere. The grainy appearance of the solar photosphere is produced by the tops of these convective cells and is called granulation. The rising part of the granules is located in the center where the plasma is hotter. The outer edge of the granules is darker due to the cooler descending plasma. (The terms darker and cooler are strictly by comparison to the brighter, hotter plasma. According to the Stefan–Boltzmann law, luminosity increases with the fourth power of temperature leading to even a small loss of heat producing a large luminosity contrast.) In addition to the visible appearance, which would be explained by convective motion, Doppler shift measurements of the light from individual granules provides evidence for the convective nature of the granules. (Wikipedia, The Free Encyclopedia, <a href=\"https://en.wikipedia.org/wiki/Solar_granule\" target=\"_blank\">https://en.wikipedia.org/wiki/Solar_granule</a>)"@en ;
  skos:hiddenLabel "solar granules"@en, "Granulation solaires"@fr, "granulations solaires"@fr, "Solar granulation"@en, "Granulation solaire"@fr, "solar granulations"@en ;
  skos:altLabel "solar granule"@en ;
  a skos:Concept ;
  skos:inScheme mdl: ;
  skos:broader mdl:-PFF8VN6J-X .

mdl:-PFF8VN6J-X
  skos:prefLabel "solar photosphere"@en, "photosphère solaire"@fr ;
  a skos:Concept ;
  skos:narrower mdl:-QHGR3SBR-Z .