Journal ArticleDOI
Solar constant: constraints on possible variations derived from solar diameter measurements.
TLDR
Variations of the solar radius between 1850 and 1937 are limited to about 0.25 arc second; modeling of the sun indicates that the solar constant did not vary by more than 0.3 percent during that time.Abstract:
Climatically significant variation of the solar constant (the energy output of the sun) implies measurable change in the solar radius. The available data limit variations of the solar radius between 1850 and 1937 to about 0.25 arc second; modeling of the sun indicates that the solar constant did not vary by more than 0.3 percent during that time.read more
Citations
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Journal ArticleDOI
Solar Interior Structure and Luminosity Variations
TL;DR: The assumption of standard solar evolution theory is mentioned briefly, and the principle conclusions drawn from them are described as discussed by the authors, and the result is a rationalization of the present luminosity and radius of the Sun.
Journal ArticleDOI
A discussion of plausible solar irradiance variations, 1700-1992
TL;DR: In this article, the authors examined several different solar indices measured over the past century that are potential proxy measures for the Sun's irradiance and found that approximately 71% of the decadal variance in the last century can be modeled with these solar indices, although this analysis does not include anthropogenic or other variations which would affect the results.
Journal ArticleDOI
Magnetic activity and variations in solar luminosity
TL;DR: In this paper, strong magnetic fields at the base of the convective zone can alter the local convection and the resulting changes in thermal energy are large enough to produce variations of order 0.1% in the solar luminosity over the 11-yr sunspot cycle.
Journal ArticleDOI
Persistence of the Gleissberg 88‐year solar cycle over the last ∼12,000 years: Evidence from cosmogenic isotopes
TL;DR: In this paper, the authors examined the longest detailed cosmogenic isotope record (INTCAL98) of atmospheric 14C abundance, which extends back to ∼11,854 years B.P.
Journal ArticleDOI
Solar variability, weather and climate: An update
TL;DR: In this paper, a review substantially updates the earlier review by Pittock (1978) in the light of more than 100 papers published in the last few years, and a discussion of the controversy over solar variability, weather and climate as an example of scientific decision-making in the face of inadequate data and other uncertainties, with reference to the statistical ideas of Type I and Type II errors.
References
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Journal ArticleDOI
Volcanic Dust, Sunspots, and Temperature Trends
TL;DR: The extent to which two often proposed external causes of climatic change, volcanic dust and variations in the solar constant correlated with variable sunspot activity, might account for the general patterns of surface temperature variation since A.D. 1600 are examined in this article.
Journal ArticleDOI
The intrinsic visual oblateness of the sun.
H. A. Hill,R. T. Stebbins +1 more
TL;DR: In this paper, new solar oblateness observations were reported that yield a value of 18.4 plus-or-minus 12.5 milli-arcsec for the difference between equatorial and polar diameters.
Journal ArticleDOI
Solar radiation and solar activity
K. Ya. Kondratyev,G. A. Nikolsky +1 more
TL;DR: Using high-altitude balloon soundings (1961 to 1968) and other data, it was shown that the most reliable maximum value of the solar constant is at present 1.94 cal cm−2 min−1, to an accuracy of 1 per cent as mentioned in this paper.