Topic
Solar constant
About: Solar constant is a research topic. Over the lifetime, 967 publications have been published within this topic receiving 29647 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: In this article, the correlation of global radiation with other meteorological data for the state of Bahrain (26°00′N, 50°15′E) was analyzed and used to produce some numerical formulae for the correlation.
3 citations
01 Jan 1986
TL;DR: In this paper, a discussion of features of the nearly 7 yr of solar radiation data available from Nimbus-7 Earth Radiation Budget (ERB) experiments as of early 1986 is presented.
Abstract: A discussion is presented of features of the nearly 7 yr of solar radiation data available from Nimbus-7 Earth Radiation Budget (ERB) experiments as of early 1986. Summaries are provided of the irradiance data collected by each of the 10 solar sensors, with account taken of the degradation of sensor sensitivity over the active life of the sensors. In contrast, however, has been the performance of the cavity pyrheliometer, channel 10C, which has maintained an accuracy of 0.05 percent after over 6 yr on-orbit. As has been observed in SMM data, the total daily solar irradiance has exhibited a downward trend over the lifetimes of both instruments.
3 citations
01 Dec 1981
TL;DR: In this article, an investigation of thermal perturbations of the solar convective zone via changes in the mixing length parameter was carried out, with a view toward understanding the possible solar radius and luminosity changes cited in the literature.
Abstract: An investigation of thermal perturbations of the solar convective zone via changes in the mixing length parameter were carried out, with a view toward understanding the possible solar radius and luminosity changes cited in the literature. The results show that: (a) a single perturbation of alpha is probably not the cause of the solar radius change and (b) the parameter W = d lambda nR./d lambda nL. can not be characterized by a single value, as implied in recent work.
3 citations
TL;DR: In the second part of 1984, there were no large variations in the solar constant or in the 260 MHz radio flux as discussed by the authors, indicating that the level of the activity layers in the convective zone would be nearer to the photosphere at the time of the solar minimum than of the maximum.
3 citations
01 Jan 1987
TL;DR: The results of data simulations reveal that a number of possible forms of temporal optical depth variations can severely bias Langley plot estimates of optical depth and zero-airmass solar irradiance while yielding nearly straight Langley plots as mentioned in this paper.
Abstract: The Langley plot technique is a useful and well-known method for estimating atmospheric spectral extinction and/or the exoatmospheric solar spectral irradiance from ground-based spectroradiometer observations This paper addresses the problem of detecting and assessing the bias of temporal optical depth variations with regard to retrieving the spectral solar constant (zero-airmass spectral solar irradiance) and instantaneous optical depth via the Langley method The results of data simulations reveal that a number of possible forms of temporal optical depth variations can severely bias Langley plot estimates of optical depth and zero-airmass solar irradiance while yielding nearly straight Langley plots Analyses of many spectroradiometer data sets reveal that the error in the determination of the zero-airmass solar irradiance is almost always significantly greater than the statistical uncertainty obtained from the Langley plot fit This error can be estimated if the magnitude of the optical depth variation over the observation period is known
3 citations