@prefix dct: . @prefix ns1: . @prefix ns2: . @prefix ns3: . @prefix rdfs: . @prefix skos: . a skos:Concept ; dct:created "2019-01-14" ; dct:modified "2019-01-14" ; ns3:hasProfile ; ns1:status ; rdfs:seeAlso ; skos:definition "The surface called surface means the lower boundary of the atmosphere. A phrase assuming_condition indicates that the named quantity is the value which would obtain if all aspects of the system were unaltered except for the assumption of the circumstances specified by the condition. longwave means longwave radiation. Upwelling radiation is radiation from below. It does not mean net upward. When thought of as being incident on a surface"@en ; skos:exactMatch ; skos:prefLabel "surface upwelling longwave flux in air assuming clear sky"@en ; ns2:hadPrimarySource .