An Empirical Model of Total Solar Irradiance Variation Between 1874 and 1988

  title={An Empirical Model of Total Solar Irradiance Variation Between 1874 and 1988},
  author={Peter V. Foukal and Judith Lean},
  pages={556 - 558}
  • P. Foukal, J. Lean
  • Published 2 February 1990
  • Environmental Science, Medicine
  • Science
An empirical model of variations in the total solar irradiance caused by observed changes in photospheric magnetic activity between 1874 and 1988 is presented. The model provides a remarkably good representation of the irradiance variations observed by satellite-borne radiometers between 1980 and 1988. It suggests that the mean total irradiance has been rising steadily since about 1945, with the largest peak so far at about 1980 and another large peak expected during the current solar cycle 22… Expand

Topics from this paper

Solar Irradiance since 1874 Revisited
We reconstruct the solar irradiance since 1874 employing an evolved version of previously published models and improved sunspot and facular data. A good correlation between reconstructed irradianceExpand
Reconstruction of solar total irradiance since 1700 from the surface magnetic flux
Context. Total solar irradiance changes by about 0.1% between solar activity maximum and minimum. Accurate measurements of this quantity are only available since 1978 and do not provide informationExpand
Reconstruction of solar irradiance since 1610: Implications for climate change
Solar total and ultraviolet (UV) irradiances are reconstructed annually from 1610 to the present. This epoch includes the Maunder Minimum of anomalously low solar activity (circa 1645-1715) and theExpand
Newly found evidence of Sun-climate relationships
Solar radiation cycles drive climatic changes interannually and intercyclically. Evidence of the Sun-Climate link was first detected by comparing satellite measured variations in solar totalExpand
Solar total irradiance variations and the global sea surface temperature record
The record of globally averaged sea surface temperature (SST) over the past 130 years shows a highly significant correlation with the envelope of the 11-year cycle of solar activity over the sameExpand
Solar Irradiance Variations and Global Ocean Temperatures
Long-term (decades to centuries) variations in the surface temperature of the earth may have been caused, at least in part, by variations in the sun's total irradiance (the solar “constant”). TheExpand
Abstract The contribution to total solar irradiance variations by the magnetic field at the solar surface is estimated. Detailed models of the irradiance changes on the basis of magnetograms showExpand
A comparison of variable solar total and ultraviolet irradiance outputs in the 20th century
[1] Differences in time- variation between total and ultraviolet solar irradiance could help in separating their influence on climate. We present the first models based on area measurements ofExpand
Length of the Solar Cycle: An Indicator of Solar Activity Closely Associated with Climate
A set of data that supports the suggestion of a direct influence of solar activity on global climate is the variation of the solar cycle length, which closely matches the long-term variations of the Northern Hemisphere land air temperature during the past 130 years. Expand
Solar irradiance during the last 1200 years based on cosmogenic nuclides
Based on a quantitative study of the common fluctuations of 14C and 10Be production rates, we have derived a time series of the solar magnetic variability over the last 1200 years. This record isExpand


A Model of Solar Luminosity Modulation by Magnetic Activity Between 1954 and 1984
A simple model based on the changes in excess radiation from bright magnetic faculae and on changes in reduced radiation from dark spots is remarkably successful in matching the slow variations ofExpand
Application of solar max ACRIM data to analysis of solar-driven climatic variability on Earth
Climatic change caused by solar variability has been proposed for at least a century, but could not be assessed reliably in the past because the uncertainty in solar irradiance measured from theExpand
Solar luminosity variations in solar cycle 21
The ACRIM I experiment (Active Cavity Radiometer Irradiance Monitor) on the solar maximum Mission (SMM) satellite has provided a nearly continuous record of solar total irradiance variations sinceExpand
Changes in the solar constant and climatic effects
Spacecraft measurements have established that the total radiative output of the Sun varies at the 0.1–0.3% level. The observed fluctuations are well modelled as radiative deficits proportional to theExpand
Magnetic modulation of solar luminosity by photospheric activity
The behavior of slow changes in solar irradiance S is studied using measurements obtained with radiometers on the SMM and Nimbus 7 spacecraft. The general downtrend in the radiometer readings isExpand
The Surface Temperature of the Sun and Changes in the Solar Constant
The solar distortion telescope has been used to measure the limb shape and latitude dependence of the limb brightness during the summer months for a 5-year period - a time base sufficient to detectExpand
Spectrum Line Intensity as a Surrogate for Solar Irradiance Variations
Comparisons with ground-based, irradiance spectrophotometry of selected Fraunhofer lines independently confirm the variability in the ACRIM Se, signal, indicate that the source of irradiance is faculae, and indicate that ACRim Se, follows the 11-year activity cycle. Expand
Multiperiodic irradiance changes caused by r-modes and g-modes
More than 20 real periodicities ranging from 20 days to 2 years modulate the solar irradiance data accumulated since November 1978 by Nimbus 7. Many are quite strong during the first three yearsExpand
Thermal expansion of sea water associated with global warming
The relationship between greenhouse-gas forcing, global mean temperature change and sea-level rise due to thermal expansion of the oceans is investigated using upwelling–diffusion and pure diffusionExpand
Analytical solution for the effect of increasing CO2 on global mean temperature
Increasing atmospheric carbon dioxide concentration is expected to cause substantial changes in climate1. Recent model studies suggest that the equilibrium warming for a CO2 doubling (Δ T2×) is aboutExpand