𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The diffuse solar irradiance of slopes under cloudless skies

✍ Scribed by M. D. Steven; M. H. Unsworth

Publisher
John Wiley and Sons
Year
1979
Tongue
English
Weight
572 KB
Volume
105
Category
Article
ISSN
0035-9009

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

The diffuse irradiance of slopes relative to the diffuse irradiance of a horizontal surface is calculated by integrating the mean radiance distributions of cloudless skies in Britain for a wide range of solar elevations, azimuths and slope angles. There is reasonable agreement with measurements reported from a number of stations; discrepancies are probably due to errors in measurements and to the influence of aerosol on the radiance distributions. A simple model of the diffuse irradiance of slopes, which takes account of circumsolar radiation, is proposed, and agrees well with integrated values of irradiance.

πŸ“œ SIMILAR VOLUMES

The estimation of solar radiation under
The estimation of solar radiation under cloudless skies with atmospheric dust
✍ L. R. Collier; J. G. Lockwood πŸ“‚ Article πŸ“… 1974 πŸ› John Wiley and Sons 🌐 English βš– 219 KB

## Abstract Observations of global radiation received in a small catchment in Yorkshire were analysed for clear sky conditions and an empirical relationship of the form __Q__ = 1380 sin ΞΈ(__a__ + __b__ sin ΞΈ) W m^βˆ’2^ Found, between incoming solar radiation __Q__ and the solar elevation ΞΈ, where _

Shade-ring corrections for pyranometer m
Shade-ring corrections for pyranometer measurements of diffuse solar radiation from cloudless skies
✍ M. D. Steven; M. H. Unsworth πŸ“‚ Article πŸ“… 1980 πŸ› John Wiley and Sons 🌐 English βš– 448 KB

## Abstract When a shade ring is used to shield a pyranometer from direct solar radiation, a correction to the measured diffuse radiation is necessary to account for diffuse radiation intercepted by the ring. A general analysis is developed to relate shade‐ring corrections to the radiance distribut