Electromagnetic radiation
type: Entity
type: Concept

Photons
type: Entity
type: Concept

Radiation transfer constraint
type: Concept
narrower: Direct radiation

Direct radiation
type: Constraint
type: Concept
created: 2022-02-07T17:00:00
modified: 2022-12-22T10:09:32
broader: Radiation transfer constraint
definition: [Bent Sørensen, in Renewable Energy (Fifth Edition), 2017] Direct radiation is defined as radiation that has not experienced scattering in the atmosphere, so that it is directionally fixed, coming from the disc of the Sun.
in scheme: ozcar-theia
narrow match: http://vocabs.lter-europe.net/EnvThes/22044
constrains: Electromagnetic radiation
constrains: Photons