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

@article{Palle2005PossibleSP,
  title={Possible satellite perspective effects on the reported correlations between solar activity and clouds},
  author={Enric Palle},
  journal={Geophysical Research Letters},
  year={2005},
  volume={32}
}
  • 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
ARE SOME CLOUDS OBSCURED IN SATELLITE VIEW
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,
Effect of ENSO and volcanic events on the Sun-cloud link
Persistent solar signatures in cloud cover: spatial and temporal analysis
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.
Global patterns of solar influence on high cloud cover
Abstract One of the main sources of uncertainty in climate projections is represented by clouds, which have a profound influence on the Earth’s radiation budget through the feedbacks in which they
Relationship of Lower-Troposphere Cloud Cover and Cosmic Rays: An Updated Perspective
An updated assessment has been made of the proposed hypothesis that galactic cosmic rays (GCRs) are positively correlated with lower-troposphere global cloudiness. A brief review of the many
Cosmic rays, cloud condensation nuclei and clouds – a reassessment using MODIS data
Abstract. The response of clouds to sudden decreases in the flux of galactic cosmic rays (GCR) – Forbush decrease events – has been investigated using cloud products from the space-borne MODIS
A correlation study of high‐altitude and midaltitude clouds and galactic cosmic rays by MIPAS‐Envisat
[1] The cloud index (CI), the cloud occurrence frequency (Occ), and the extinction data (Ext) of the Michelson Interferometer for Passive Atmospheric Sounding instrument on board Envisat (MIPAS-E)
Examining a solar climate link in diurnal temperature ranges
A recent study has suggested a link between the surface level diurnal temperature range (DTR) and variations in the cosmic ray (CR) flux. As the DTR is an effective proxy for cloud cover, this result
...
...

References

SHOWING 1-10 OF 23 REFERENCES
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
Low cloud properties influenced by cosmic rays
  • Marsh, Svensmark
  • Physics, Environmental Science
    Physical review letters
  • 2000
TLDR
Surprisingly the influence of solar variability is strongest in low clouds, which points to a microphysical mechanism involving aerosol formation that is enhanced by ionization due to cosmic rays.
Climate change during 1985–1999: Cloud interactions determined from satellite measurements
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
    Science
  • 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
Evidence for Large Decadal Variability in the Tropical Mean Radiative Energy Budget
TLDR
New evidence is presented that the top-of-atmosphere (TOA) tropical radiative energy budget is much more dynamic and variable than previously thought and the results indicate that the radiation budget changes are caused by changes in tropical mean cloudiness.
...
...