This HTML5 document contains 26 embedded RDF statements represented using HTML+Microdata notation.

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Namespace Prefixes

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n21	http://mmisw.org/ont/cf/parameter/
n19	http://vocab.nerc.ac.uk/collection/P07/current/CFSN0676/1/

Statements

Subject Item

n2:

rdf:type

skos:Concept

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dcterms:identifier

SDN:P07::CFSN0676

dc:identifier

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dcterms:date

2018-07-03 16:09:23.0

skos:definition

Downwelling radiation is radiation from above. It does not mean "net downward". The sign convention is that "upwelling" is positive upwards and "downwelling" is positive downwards. "Photosynthetic" radiation is the part of the spectrum which is used in photosynthesis e.g. 400-700 nm. The range of wavelengths could be specified precisely by the bounds of a coordinate of radiation_wavelength. A photon flux is specified in terms of numbers of photons expressed in moles. In accordance with common usage in geophysical disciplines, "flux" implies per unit area, called "flux density" in physics.

skos:notation

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3