New Zealanders have been enjoying sunsets for nearly a millennium.
But that golden age has come to an end.
In a report published by The Conversation, researchers from the University of Canterbury and the University on Tauranga say they’ve found evidence of a sunspot cycle in the New Zealand skies, dating back to the 17th century.
“What we find is the first time we’re seeing the emergence of a cycle of sunspots over the course of a century,” lead researcher Prof Mark Williams told the Conversation.
But then we’ve had a cycle since about the mid-1930s.””
So, for a period of a couple of centuries, we’ve been seeing a cycle for the first three decades of the century.
But then we’ve had a cycle since about the mid-1930s.”
So this is the kind of cycle we’re looking at now.
“Prof Williams said the period is so different to that in the mid 20th century that it would be impossible to draw any conclusions from the data.”
This is really a long period of time, so it’s hard to draw a conclusion from it,” he said.
The researchers analysed data from the New South Wales Department of Primary Industries’ Sunspots Database, which tracks when the first sunspot was seen.”
We find that the sunspot population actually starts rising again in the middle of the 20th Century,” Dr Williams said.”
It starts going down again in about the late 1930s and early 1940s.
So it’s a very unusual cycle.
“He said the first cycle is so long that it has its own name, and there are so many sunspotted events that are not necessarily associated with a single sunspot.”
If you look at all the sunspottings, there are actually about 20 different sunspoter events,” he explained.”
But they’re not necessarily all the same events.
So we’ll have to see what the correlations are with other things, and we’ll also need to look at the other sunspOT events to try and get a sense of the general pattern.
“Dr Williams said he did not know whether the cycle would continue for a century or more.
He said there were several possible reasons for the rise in the number of sunspot events.
One is that a new sunspot is appearing, but the other two are linked.
And there is evidence that solar activity is also increasing.”
There’s evidence that it’s increased,” he told the Australian Broadcasting Corporation.
There is also evidence that the amount of CO 2 in the atmosphere is increasing.
These are the reasons we can say that there is a cycle in our sunspot system.”
For the first two cycles, we don’t see any other cycles of sunpots emerging in the 20 years that we have data from,” he added.
Prof Williams, who is also from the National University of Singapore, said that while it was a significant finding, it was not enough to prove cause and effect.”
The study was published in the journal Science Advances. “
But we can be confident that it is, because the first cycles of the cycle are associated with CO 2 rising and there is increasing CO 2 and there’s decreasing CO 2.”
The study was published in the journal Science Advances.
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