# surface upwelling longwave flux in air

URI: http://linked.data.gov.au/def/tern-cv/0d748d470c37a8a98cb40302b8b238a6c2813165d96d3c63c69dfb59cd534a0b

Also known as surface_upwelling_longwave_flux_in_air

Date created: 2018-07-03
Date modified: 2022-06-10

Parameter Type

##### Definition

The surface called "surface" means the lower boundary of the atmosphere. The term "longwave" means longwave radiation. Upwelling radiation is radiation from below. It does not mean "net upward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. When thought of as being incident on a surface, a radiative flux is sometimes called "irradiance". In addition, it is identical with the quantity measured by a cosine-collector light-meter and sometimes called "vector irradiance". In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

##### source

http://vocab.nerc.ac.uk/collection/P07/current/

##### notation

surface_upwelling_longwave_flux_in_air

##### note

This concept was harvested from the controlled vocabulary at http://vocab.nerc.ac.uk/collection/P07/current/ on 2022-06-10. Information was pulled as-is for the following properties: dcterms:created, skos:definition, skos:exactMatch, skos:related and skos:notation. The URI of the concept is generated using SHA256 on the CF standard name (in the skos:notation) and concatenated with the TERN controlled vocabularies' base URI (http://linked.data.gov.au/def/tern-cv/).

##### related

http://vocab.nerc.ac.uk/collection/P06/current/UFAA/

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