The Maunder Minimum

@article{Eddy1976TheMM,
  title={The Maunder Minimum},
  author={John Allen Eddy},
  journal={Science},
  year={1976},
  volume={192},
  pages={1189 - 1202}
}
  • J. Eddy
  • Published 18 June 1976
  • Physics
  • Science
zero. In contrast, in the years around a sunspot maximum there is seldom a day when a number of spots cannot be seen, and often hundreds are present. Past counts of sunspot number are readily available from the year 1700 (3), [m and workers in solar and terrestrial studies often use the record as though it were of of uniform quality. In fact, it is not. Thus it is advisable, from time to time, to 
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1,752 Citations

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An Active Sun Throughout the Maunder Minimum

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An Upper Limit on Sunspot Activity During the Maunder Minimum

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References

SHOWING 1-10 OF 53 REFERENCES

Chinese Records of Sunspots and Aurorae in the Fourth Century A. D

The Chinese did not realize that the activity on the sun was often associated with the northern lights in the terrestrial atmosphere; indeed, even when the two phenomena correspond there is usually a…

The sunspot‐cycle before 1750

Sunspot-numbers since 1749 form [Wolf, 1945] a long and reliable series of indices with an obvious but unexplained 11-year cycle (see Fig. 1). Harmonic analysis has hitherto proved unsuccessful in…

Volcanic Dust, Sunspots, and Temperature Trends

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…

The geographic incidence of aurora and magnetic disturbance, Northern Hemisphere

The isochasms of FRITZ for the average of the 172-year period, 1700 to 1871, are tentatively revised and adjusted to an auroral-zone curve defined by geomagnetic data. In addition there are derived…

VARIATIONS IN RADIOCARBON CONCENTRATION AND SUNSPOT ACTIVITY

Variations in cosmic-ray intensities will produce variations in C/sup 14/ production in the atmosphere. A comparison is made between variations in sunspot activity and fluctuations in C/sup 14/…

Variation in Atmospheric Carbon-14 Activity Relative to a Sunspot-Auroral Solar Index

  • J. Bray
  • Environmental Science, Physics
    Science
  • 1967
Radiocarbon activity was negatively correlated (P≤.01) with a sunspot-auroral index during 25 designated solar activity periods from 129 B.C. to A.D. 1964. Change in carbon-14 activity during these…

Solar-Climate Relationships in the Post-Pleistocene

  • J. Bray
  • Environmental Science
    Science
  • 1971
The most conspicuous climatic aberration of the past two millennia was the temperature decline and glacial advance of the A.D. 1550 to 1900 period and there is evidence from both the post-Pleistocene glacial record and from oxygen-18 analysis that such an interval recurred at cyclic periods of around 2600 years.

LATE AND POSTGLACIAL CLIMATIC FLUCTUATIONS AND THEIR RELATIONSHIP TO THOSE SHOWN BY THE INSTRUMENTAL RECORD OF THE PAST 300 YEARS

I propose in this paper to compare the evidence we have with regard to the characteristics of the smaller climatic fluctuations of recent centuries with that forthcoming with regard to late and…

Ancient aurorae seen in Japan

Historical data of auroral phenomena seen from Japan since the seventh century are summarized in this communication. Among several reference-books1 used, the chief was Nippon Kisho-Shiryo…

Secular variations of the cosmic-ray-produced Carbon 14 in the atmosphere and their interpretations

The carbon 14 content of about 150 wood samples, dated by dendrochronology, has been measured. The wood samples of known age used in this investigation cover the past 2000 years. Some were supplied…
...