insolation


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insolation

(in-sŏ-lay -shŏn) The exposure of any surface or body to solar radiation. It is usually quoted as the radiant flux received from the Sun per unit area per unit time; it can therefore be considered as the heating effectiveness of solar radiation.

Insolation

Amalgamation of the words “incoming solar radiation” that means the total amount of solar energy that strikes a given surface in a given time. It is commonly expressed in kilowatt-hours per square meter per day.

Insolation

 

irradiation of the earth’s surface by solar radiation, direct or total radiation (that is, direct and scattered together). Insolation is usually understood to mean only the amount of radiation received on a horizontal surface. However, the concept of insolation can be broadened to also mean the insolation of surfaces perpendicular to the sun’s rays, vertical surfaces (walls), and inclined surfaces (slopes). The intensity of insolation is expressed by the amount of energy delivered in unit time to a unit irradiated surface (usually insolation is expressed in W/m2).

Insolation depends on the height of the sun above the horizon, the position of the surface irradiated, and the elevation above sea level, as well as on the transparency of the atmosphere and the degree of cloudiness. Therefore, insolation varies considerably both during the course of a day and from season to season. Insolation determines the thermal condition of the earth’s surface and atmosphere and the natural illumination on the earth. Thus, it determines the overall circulation of the atmosphere and the hydrologic cycle on the earth and therefore the earth’s climatic conditions. Biophysical and biochemical processes in plant and animal organisms also depend on insolation.

It is necessary to consider insolation conditions in agriculture and solar therapy. It should also be considered in working out architectural designs, in planning and building towns and cities, and in solving many problems of industry and transportation.

REFERENCE

Kondrat’ev, K. Ia. Akiinometriia. Leningrad, 1965.

S. P. KHROMOV

insolation

[‚in·sō′lā·shən]
(astronomy)
Exposure of an object to the sun.
Solar energy received, often expressed as a rate of energy per unit horizontal surface.
References in periodicals archive ?
Even for time varying solar insolation and different loading conditions, the power extraction efficiencies of both the DC-DC converter and GS-VSC outperform compared to the d-q controller.
In this paper, three-port DC-DC converter is interfaced to the PV/battery hybrid system to validate the performance of modified P&O algorithm to reduce the drift problem for increase in insolation i.e., when transition occurs between DI mode and DO mode.
Table 1: The parameters used in the simulation of the SBI topology with MPPT at varying insolation Parameters Value Open circuit voltage 217.8V Short-circuit current 31.36A Voltage at max.
Moreover, a higher daily insolation causes warmer ground temperatures, which stimulate the lifting of dust from the surface into the atmosphere.
Smaller changes of the insolation are associated with other Earth's Keplerian elements, namely semimajor axis, inclination of the ecliptic in relation to J2000 reference frame and longitude of perihelion, whose variations can modulate the local Earth's insolation.
The following simulation is presented for different insolation levels at fixed temperature of 25C as shown in Figure 8(a).
Hulstrom, "Simplified Clear Sky Model for Direct and Diffuse Insolation on Horizontal Surfaces." Technical Report No.
When insolation was strong, solar radiation absorbed by the panel (the first term on the right-hand side, namely, solarsource) nearly met the evaporation capacity of the heat pump cycle and the panel temperature was kept near the ambient temperature [T.sub.a].
Source: "Increased insolation threshold for runaway greenhouse processes on Earth-like planets," Jeremy Leconte et al., published in Nature, December 12, 2013.
Climatic variables such as insolation, temperature and precipitation have been shown to vary greatly over its area of distribution (Adis et al., 2004).