Sentences with phrase «number of sunspots during»

There was an even lower number of sunspots during the Maunder Minimum between 1645 and 1710 coincident with an even colder spell, known as the Little Ice Age.

«Going back to 1755, there have been only a few solar cycles in the previous 23 that have had a lower number of sunspots during its maximum phase,» according to Vencore.

«Going back to 1755, there have been only a few solar cycles in the previous 23 that have had a lower number of sunspots during its maximum phase.»

Not exact matches

The sun goes through an 11 - year solar cycle during which its luminosity varies according to the number of sunspots appearing on its face.

Astronomers in Canada and the US have found tentative evidence that Tau Ceti has an 11 - year cycle during which the number of its starspots waxes and wanes, just like the sunspot cycle.

The increased number of sunspots and solar storms during solar maximum takes place approximately every 11 years.

The pattern is of a slow rise in the number of neutrinos arriving, followed by a more rapid decline over the four years during which sunspot activity rises to its peak.

During around 90 % of the entire period between the start of the CRF count (1951) to now, the CRF has been higher than 3600 (x100) per hour [if one looks at the climax CRF / sunspot number plot on the page I urled and compares this with the data in the downloadable datasets on that page one can work out that a CRF count of 3600 (x100) per hour corresponds to around the 83 % level].

[Response: And note that the abstract linked says «Although the rarity of the current episode of high average sunspot numbers may indicate that the Sun has contributed to the unusual climate change during the twentieth century, we point out that solar variability is unlikely to have been the dominant cause of the strong warming during the past three decades.»

During the period 1950 - 2000, the average length of the solar cycle is 10.7 yr (using either the sunspot numbers, or the TSI reconstruction of Lean 2000, GRL 27, 2425).

[35] Sunspot numbers clearly reveal trends in solar magnetic phenomena, e.g., during the first half of the twentieth century.

During a solar maximum, the number of sunspots increases.

However, Solanki et al made the same point as we do: «This comparison shows without requiring any recourse to modeling that since roughly 1970 the solar influence on climate (through the channels considered here) can not have been dominant» (Solanki et al., 2003), and: «Although the rarity of the current episode of high average sunspot numbers may indicate that the Sun has contributed to the unusual climate change during the twentieth century, we point out that solar variability is unlikely to have been the dominant cause of the strong warming during the past three decades.»

Government scientists want to ignore decades - long unique and rare record - setting solar events, eschew counting sunspots and are more interested in parameterization - gazing than star - gazing, despite the fact that, «During solar maximum,» as anyone can read in wiki, «large numbers of sunspots appear and the sun's irradiance output grows.»

During periods of high solar activity (last several cycles had anomalously large sunspot numbers), the solar wind deflects more of these high - energy cosmic rays away from Earth, thereby reducing nucleation / cloud cover and increasing albedo.

While solar output typically goes through 11 - year cycles with high numbers of sunspots seen at their peak, we are currently approaching the peak of «Cycle - 24» with numbers running at less than half of those observed during other 20th century peaks.