今年是极光小年,有多大影响

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fitzroy
楼主 (北美华人网)
年初去了南极,想着年尾去趟黄刀把北极光也看了吧,
但是今年是小年,太阳风11年一个周期 上次2013,下次2024,今年最小年。
大年小年区别到底多大。
f
fitzroy
按照这篇文章,大小年对地球其他地区影响大,但是对看北极光地区没影响。
这是真的吗,2018年黄刀或其他观察北极光地区,有多少次北极光和平均亮度 VS 2014年,有人做过比较吗
好想去,又怕浪费时间和金钱
The aurora borealis is going into a shortage mode for the next few years, but Yellowknife and other Northern cities will remain as glow-rious as ever — maybe even more so, says a world expert on the aurora.
Solar storms, a cause of northern lights, nearly led to nuclear war in 1967

The science behind the northern lights

Every 11 years, the solar cycle of the sun goes into "solar minimum," a period when there is less solar flare activity on the sun. This generally means people on Earth will see less northern lights in the sky.
One expert says that will be the case for southern Canadian regions, such as Alberta, Manitoba, and Saskatchewan, but the North is still in luck.

"Right now, if you want to see the aurora, you can go to Edmonton and Athabaska and pretty reliably see the aurora. In two or three years, that won't be the case," said Eric Donovan, professor with the Department of Physics and Astronomy at the University of Calgary.
At the moment, the solar cycle is in a period of "solar maximum," Donovan said, the aurora isn't as frequent in places like Yellowknife because the aurora tends to spread and move toward the equator.
"What's going to happen is the aurora will retreat North to where it usually is, but be there more regularly, more routinely."
Whitehorse and Yellowknife aurora sweet spots
In particular, cities that fall on the 67th degree of geomagnetic latitude will see the aurora most frequently.

Sometimes, you don't need a headlamp. Jan Barbier took this dreamlike photo on Yellowknife's Ingraham Trail. (submitted by Jan Barbier)
This latitude differs from geographical latitudes, says Donovan.
The 67th geomagnetic degree goes from Fairbanks in Alaska to Whitehorse, Yellowknife, then down to Churchill, Manitoba and up to Greenland. These will be the prime places to see the aurora during the solar minimum, says Donovan.
So this aurora "shortage" could mean good news for Northern tourism.
"Everybody in the North will see the northern lights either more, or more frequently at solar minimum."
However, Donovan says forecasting the aurora still has "a ways to go."
"The aurora is less predictable than the weather," said Donovan. "We are getting better, but I would say we're a ways away from reliably being able to say… at these latitudes, there will be an aurora tonight."
S
ShallowCreek
虽然是小年, 但还是有比较强的极光, 只是频率小了点。今年九月初, 九月末就有两次六级的极光。

有二十八天的极光预报,看到有强极光再订票。黄刀处在极光带, 三四级以上就可以。
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xh_123
2024年感觉也不远啊
f
fitzroy
虽然是小年, 但还是有比较强的极光, 只是频率小了点。今年九月初, 九月末就有两次六级的极光。

有二十八天的极光预报,看到有强极光再订票。黄刀处在极光带, 三四级以上就可以。

ShallowCreek 发表于 10/5/2019 2:56:07 PM

那机票贵死了。
f
fitzroy
2024年感觉也不远啊
xh_123 发表于 10/5/2019 4:54:47 PM

5年太太太太太长了,马上就要看。
我去南极从决定到成行只有29天。
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elchalten
虽然是小年, 但还是有比较强的极光, 只是频率小了点。今年九月初, 九月末就有两次六级的极光。

有二十八天的极光预报,看到有强极光再订票。黄刀处在极光带, 三四级以上就可以。

ShallowCreek 发表于 10/5/2019 2:56:07 PM

哪儿有28天极光预报,只看到一星期。今天晚上6级。
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alwaystravel

哪儿有28天极光预报,只看到一星期。今天晚上6级。

elchalten 发表于 10/13/2019 11:49:20 AM


NOAA有27和45天预报。你这6级哪来的。昨天今天最高Kp Index 3。