The reason for the white weather in Antarctica is that the polar air density is low, water vapor is scarce, and the ability to absorb sunlight is very weak.
When the sky is covered with dark clouds, the sunlight shines through the clouds onto the ice field, and the light reflects back and forth between the ice field and the dark clouds like two mirrors.
After multiple reflections, the light will become completely consistent in brightness in all parts of the entire three-dimensional space, from the ocean to the land and then to the sky.
When the ground, the ocean and the surrounding ice and snow reach the same brightness, the entire world becomes completely white to the naked eye.
A moment later, the white weather was not over.
At this time, Fang Youqun complained again. He wailed, "Brother Yang, why hasn't this white weather ended yet? I feel dizzy."
Xiang Yang frowned again. This time the Antarctic death ray lasted a little longer.
"Under the Antarctic death ray phenomenon, dizziness is a normal phenomenon. If you really feel uncomfortable, just close your eyes and don't look at it." Xiang Yang said.
Fang Youqun did not close his eyes as he was told, but continued to ask Xiang Yang: "Brother Yang, does this kind of pure white weather often appear in Antarctica?"
"How is that possible?"
Xiang Yang laughed dumbly and said, "In addition to the death ray, there are many other strange weather conditions in Antarctica. Among the many strange weather conditions, white weather can be regarded as the rarest. Some polar scientific research personnel have stayed in Antarctica for several years and have not encountered it once."
"Ah? It's so rare. I'd better not close my eyes. It's such a rare phenomenon. I want to watch it for a while longer." Fang Youqun said.
Xiang Yang couldn't help but smile bitterly. Well, it was Fang Youqun who complained about feeling dizzy, and it was also Fang Youqun who said he wanted to watch for a while longer. Xiang Yang didn't know what to say.
At this time, Fang Youqun spoke again, and he asked: "Brother Yang, you said that there are many strange weather conditions in Antarctica. Is there anything weirder than this?"
Xiang Yang thought, since he was free now anyway, he might as well chat with everyone.
So Xiang Yang nodded and said, "Of course there is. In Antarctica, there is no weirdest weather, only weirder weather."
"Tell us about these weird weather conditions so we can be mentally prepared if we encounter them in the future," said Fang Youqun.
Xiang Yang pondered for a moment, "If you want to talk about the weirdest thing, it's of course the murderous style, but you must all know about the murderous style, so I will tell you a few things you don't know."
"First of all, of course, is the polar night."
Antarctica does not have four seasons, only cold and warm seasons.
The cold season is from April to October, and the warm season is from November to March.
During the cold season, Antarctica has no daylight for seven consecutive months, which is called the polar night.
At this time, even near the Antarctic Circle, the sun cannot be seen for five consecutive weeks.
But auroras often appear at night, reflecting off the snow on the ground, so the Antarctic night is not completely dark.
Especially when the aurora is strong, people can even read books and newspapers.
At night, you can sometimes see the moon hanging low in the sky, dim and hazy, like a jade plate, as if you can reach out and touch it.
"Then there is midnight and sunrise."
After a long night, the sun will appear.
But the sunrise in Antarctica is very unique, just like playing hide-and-seek.
At midnight, the sun will suddenly rise slowly from the horizon.
However, before anyone can appreciate it, the sun will sink below the horizon in an instant.
After a while, the sun will rise from the east again and then set.
Then the sun will rise from the north and set in the west.
Day after day, the sun seemed to rise as it fell, hanging low on the horizon, and rotating in circles along the southeast-northwest-southwest-south.
For nearly two months in total, the sun did not set throughout the day, but instead shone strangely at different times.
When the sun is close to the horizon, people are attracted by the reflected shadows for a long time, so the warm seasons are long days rather than nights.
"Of course, the most beautiful thing is undoubtedly the Aurora Australis."
Like the North Pole, the South Pole often features auroras in the dark night sky.
The aurora in Antarctica is colorful, with five colors: red, green, and yellow.
At the same time, the aurora has many shapes, such as ribbons, curtains, arcs and so on.
The Antarctic aurora is not fixed like the rainbow.
Whenever the aurora appears, it floats like a ribbon, unpredictable and dazzling, as if entering a fairyland.
When the aurora is strong, it can make the icy landscape glow brightly, just like daytime.
In addition, foreign scientists have observed auroras of similar shape, equal brightness, and consistent color at the North and South Poles at the same time.
Every time the aurora appears, the sky is full of colorful colors.
During the milder summer months, or towards the end of summer, the sky can display brilliant colours as soon as the sun sets.
Huge orange beams of light often appear just before sunset.
At sunset, the sun has beams of light above and below.
In the afterglow of the setting sun, the beams of light show the reflection of the dragon in the water.
Sometimes there are shorter beams on either side of the beam, with the holiday still hanging on either side.
Sometimes at sunset there is a solar halo, which is covered by a halo with an arc of light and an aperture on both sides of the halo.
Sometimes after sunset there will be green light in the sky, and blue light flickers under the green light. It looks like watching a science fiction movie, which is very beautiful.
These beautiful scenes can only form when the sun is shining just right and the atmosphere contains ice crystals and snowballs of various shapes.
Scientists have long given a scientific explanation for the formation of the Antarctic Aurora.
Green and blue light have shorter wavelengths in sunlight and are easily affected by ice crystals in the atmosphere.
So, the beams of light in the aurora are actually a combination of vertical rays of light reflected from ice crystals and snowballs.
Fang Youqun was fascinated by what he heard. He said disappointedly, "How come I have been in Antarctica for so long and have never seen the aurora? Brother Yang, do you think we have a chance to see the aurora?"
Hearing this, Xiang Yang burst out laughing and said, "What's the big deal about the Aurora? We've even encountered pure white weather, which is ten times rarer than the Aurora. Are you still afraid that we won't see the Aurora?"
Fang Youqun sighed, "But I still want to see the aurora. In this white weather, I feel like I'm standing in a snowy field surrounded by thick fog. The most important thing is that this fog is very blinding."
Xiang Yang grinned, "How can it not be dazzling? This pure white is all the refraction of light."