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Solar spectral irradiance, UV, and declining solar activity – a Maunder Minimum mechanism for cooler temperature?

October 30, 2013

Watts Up With That?

Since Paul Hudson has made a bold claim at the BBC related to a recent interview with solar scientist Mike Lockwood: BBC – Real risk of a Maunder minimum ‘Little Ice Age’, I thought it appropriate to share this recent communications that raises some of the same issues about the UV portion of the solar spectrum during this lull in solar activity, which has been in significant decline in the last decade.

Dr. Jan Zeman of Prague writes:

While discussing the recent article by Stan Robertson
at the WUWT I’ve stumbled upon this very interesting voluminous paper in
Atmospheric Chemistry and Physics:

Recent variability of the solar spectral irradiance and its impact on climate modelling

Ermolli et al, April 2013 See:

The paper discusses quite very surprising results from the SORCE spectral irradiance data, comparing it to other spectral data and models available, suggesting that spectral radiance…

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