KnowraIrradianceLinked fromLinked fromThe 14 pages that link to Irradiance, each with the reason it gives.All 14Broader topic 2Related 7Narrower topic 1Compared with 4Spectral power distributionRelated: Spectral irradiance is the SPD per unit area and wavelength interval at a receiving surface.RadianceRelated: Integrating incoming radiance over directions gives irradiance.Photosynthetically active radiationRelated: Energy-based PAR measurements express the radiation arriving at a surface as irradiance.Solar radiationRelated: It measures the intensity of solar energy arriving at a surface.PhototherapyRelated: It describes how intensely a phototherapy device delivers light to the treatment surface.Square metreRelated: Its SI unit, watt per square metre, uses the square metre as the area basis.Lambert's cosine lawRelated: Its decrease at oblique incidence is the illumination form of the cosine law.