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Related to irradiance: Solar irradiance


Sending forth radiant light.

[Latin irradiāns, irradiant-, present participle of irradiāre, to shine forth; see irradiate.]

ir·ra′di·ance, ir·ra′di·an·cy n.


(ɪˈreɪdɪəns) or


(General Physics) the radiant flux incident on unit area of a surface. It is measured in watts per square metre. Symbol: Ee Also called: irradiation Compare illuminance


(ɪˈreɪ di əns)

also irradiation

incident flux of radiant energy per unit area.
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To love thou blam'st me not, for love thou saist Leads up to Heav'n, is both the way and guide; Bear with me then, if lawful what I ask; Love not the heav'nly Spirits, and how thir Love Express they, by looks onely, or do they mix Irradiance, virtual or immediate touch?
Based on this approach, the calculation of chlorophyll concentration can be achieved via the simultaneous measurement of two optical variables: 1) the incident irradiance (which drives photosynthesis) and 2) the upwelling red radiance, which results from the fluorescence of the phytoplankton crop.
The 405-nm LED was less effective than the 461-nm LED due to its low irradiance. However, in terms of dose it turned out to be more lethal.
Since (the year in which global data on temperature was first complete enough to build a credible baseline), solar irradiance and global temperature data has been compiled.
Sun4Cast integrates various forecasting technologies across a spectrum of temporal and spatial scales to predict surface solar irradiance. Anchoring the system is WRF-Solar, a version of the Weather Research and Forecasting (WRF) numerical weather prediction (NWP) model optimized for solar irradiance prediction.
The dependence of the temperature coefficients for [], [V.sub.oc], [P.sub.max], FF, and [eta] upon the irradiance was also studied.
Glasnovic and Margeta 2007 [12] developed a mathematical model to acquire an optimal PV system by considering not only water demand or irradiance but also including natural process, that is, climate, hydrology, boreholes, pumping system, irrigation, agriculture, and power supply.
Scattering by clouds attenuates the ground-level irradiance to values that can vary erratically over time scales of minutes to hours and from one day to the next.
Under partial shading condition peak values get changing, to analyze the characteristics we have used three PV array and separate irradiance to them.
Irradiance and temperatures of the solution in the tank as well as the DBT and WBT of the air, glass, and plate were recorded every 10 s from 9:00 a.m.