Possible satellite perspective effects on the reported correlations between solar activity and clouds

  title={Possible satellite perspective effects on the reported correlations between solar activity and clouds},
  author={Enric Palle},
  journal={Geophysical Research Letters},
  • E. Palle
  • Published 1 February 2005
  • Environmental Science, Physics
  • Geophysical Research Letters
Recently some correlations between low cloud cover and solar activity have been reported in the literature. In this paper we show how the flux of GCR is found to correlate positively with the low clouds and negatively with higher clouds, supporting previous theoretical predictions linking atmospheric ionization by cosmic rays and cloud cover at different altitudes. All these correlations are however only marginally significant and the only strongly significant (negative) correlation is found… 

Different response of clouds to solar input

There is evidence that solar activity variations can affect the cloud cover at Earth. However, it is still unclear which solar driver plays the most important role in the cloud formation. Here we use

Correlation between clouds at different altitudes and solar activity : Fact or Artifact ?

Studies of the relation between cosmic rays (CR) (solar activity) and atmospheric cloudiness are mostly based on the satellite ISCCP cloud data. However, doubts have been cast that these relations


Many recent studies of the relation between cloud cover and cosmic rays or other solar proxies, as UV irradiation, have been based on an analysis of the satellitebased cloud data from ISCCP. However,

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The controversial connection between cosmic rays, solar activity, and cloud cover is investigated using a climatological reconstructed reanalysis product: the North American Regional Reanalysis which

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A consensus regarding the impact of solar variability on cloud cover is far from being reached. Moreover, the impact of cloud cover on climate is among the least understood of all climate components.

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Despite over 35 years of constant satellite-based measurements of cloud, reliable evidence of a long-hypothesized link between changes in solar activity and Earth’s cloud cover remains elusive. This

A Decade of the Moderate Resolution Imaging Spectroradiometer: Is a Solar–Cloud Link Detectable?

AbstractBased on the results of decadal correlation studies between the International Satellite Cloud Climatology Project–detected cloud anomalies and the galactic cosmic ray (GCR) flux, it has been



The influence of cosmic rays on terrestrial clouds and global warming

We analyse the new ISCCP (International Satellite Cloud Climatology Project) D2 cloud data to ascertain whether or not a connection between cosmic ray flux and cloud cover exists. Despite a previous

The possible connection between ionization in the atmosphere by cosmic rays and low level clouds

Recent analysis of monthly mean cloud data from the International Satellite Cloud Climatology Project uncovered a strong correlation between low cloud and the cosmic ray flux for extensive regions of

Galactic cosmic ray and El Nino Southern Oscillation trends in International Satellite Cloud Climatology Project D2 low-cloud properties

[1] The recently reported correlation between clouds and galactic cosmic rays (GCR) implies the existence of a previously unknown process linking solar variability and climate. An analysis of the

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We have extended two recent studies that present evidence for significant decadal variability in the top‐of‐atmosphere (TOA) tropical radiative energy budget by combining satellite measurements of

The Impact of Solar Variability on Climate

  • J. Haigh
  • Environmental Science, Physics
  • 1996
A general circulation model that simulated changes in solar irradiance and stratospheric ozone was used to investigate the response of the atmosphere to the 11-year solar activity cycle. At solar

Atmospheric ionization and clouds as links between solar activity and climate

Observations of changes in cloud properties that correlate with the 11-year cycles observed in space particle fluxes are reviewed. The correlations can be understood in terms of one or both of two

Are Cosmic Rays Influencing Oceanic Cloud Coverage – Or Is It Only El Niño?

The monthly average (C2) cloudcoverage data produced by the International SatelliteCloud Climatology Project (ISCCP) for the period ofJuly 1986–June 1991 show strong global and regionalcloud coverage

Altitude variations of cosmic ray induced production of aerosols: Implications for global cloudiness and climate

  • F. Yu
  • Environmental Science, Physics
  • 2002
[1] The indirect radiative forcing of atmospheric aerosols is sensitive to particle size and concentration, which are influenced significantly by nucleation processes. Via its role in aerosol