Chapter 644: There are many blizzards at the junction of cold and warm
"Actually, some people say that the red-haired prototype in One Piece is Eric the Red. I don't know about this. It's just hearsay. Just listen."
Bi Fang took a breath.
Walking on the ice sheet was too tiring. For safety reasons, he could not walk too fast, otherwise the possibility of falling would be greatly increased.
And standing on the unobstructed ice field, you can clearly feel that the body's heat is being taken away. Even if the amount of exercise is not large at all, the physical exertion is not small at all.
“In the polar regions, it’s important to cover your entire body against cold temperatures and strong winds, especially your head and feet, and don’t stop.”
"We have reserve energy in our body, which is fat. By consuming fat, we can also produce caloric value, so I have been eating high-calorie foods these days, drinking milk tea as water, eating donuts as rice, and cheese as seasoning, just to
Gain weight.”
[Hiss, let me tell you, I vaguely feel that I have gained a lot of weight]
[Good guy, this food... I will gain ten pounds after one meal]
Bifang breathed a sigh of relief, feeling no warmth at all on his face.
The sun's irradiation has caused the temperature to rise a lot, about 35 degrees below zero, but it is still very cold. The huge temperature difference is like a giant water pump, pumping out all the heat and full of horsepower.
"The best way is to keep moving, which can ensure blood circulation in the body and avoid sweating caused by excessive exercise."
"If you start to sweat, you must loosen your clothes and ventilate them in time. If they are soaked with sweat, the warmth retention effect will be reduced. At the same time, pay attention to keeping the clothes clean. Sand, dust and grease will block the gaps in the clothes and reduce the effect of isolating cold air.
.”
After walking for nearly four hours, the surroundings were still empty.
Bi Fang stopped where he was. He looked around. At this time, the sun had reached its highest point, but it was still very low, as if it could not rise. It made people feel that it was usually even 30 degrees.
"We can't go any further. The ice sheet is bigger than I thought. It may take more than two days, maybe three days. Now that the temperature is relatively high, we have to stop and prepare to spend the night."
The width of the ice sheet is wider than Bifang imagined. Every summer is when the sea ice melts, and it begins to freeze in autumn. However, it seems that this year's sea ice freezes very quickly, and perhaps this winter will be even colder.
"Today's weather is actually very good. You see, the air visibility is very high." Bifang pointed around.
Indeed, the air here is frighteningly clean. In addition to being as cold as a knife, the sea ice stretches as far as the eye can see and is filled with light blue, pure white, and warm yellow sunlight.
The world is very elegant.
"If you are forced to do something, such as a plane crash, or other reasons that lead to the situation I am in now, then this is the best time to call for help. The skills in this area are similar to rescue in mountains."
"Bright colors and linear shapes are easier to spot from the air. Even a piece of black clothing can be seen from a long distance when spread on barren snow."
“Burning animal fat creates smoke. You can also use the ashes and burned debris to mark snow and ice, so don’t skimp on your expensive calfskin belt.”
"Search and rescue flights can only be carried out under certain good weather conditions, so you have to be prepared. It is unlikely that a helicopter will come to rescue you in a snowstorm environment, unless you also have a Fortune 500 company on your team.
The daughter of the family.”
Bi Fang made a joke. He still remembers that during his second live broadcast, someone questioned whether the rescue speed was unreasonable. It was a director's play.
In fact, it can only be said that these people do not understand wilderness and human power.
"Snow rescues may mostly use aircraft with sleds. There are not many skilled aircraft in the world, so you need to find a place as a runway for landing. This place does not have to be very flat, but it must not be
Obviously, something that could damage the aircraft."
"Large and hard corrugated snow formed by wind, commonly known as 'snow ridge', is impossible to land on. A level ground about 100 meters long and covered with a thin layer of snow is the most ideal landing site.
, this kind of place would also be a good place for us to stay, because then we can spot the approaching polar bears at a glance.”
Bi Fang squatted down, started chipping away at the ice with his knife, and said.
"Contrary to what many people think, the polar bear's hair is actually not white, and its skin is even black. The reason why it looks white is because it has two layers of hair. The outer layer is about 5-15 centimeters long. It is made of a kind of hair.
Made of a protein called keratin, it is hollow in the middle rather than solid."
"This unique structure, while receiving sunlight, can store the sunlight in the hollow hair, and then refract it at a certain angle. At this time, the polar bear's hair will look pure white, and it is very difficult to hide in the snow.
I found that it is almost exactly the same as the surrounding environment.”
Therefore, a flat and open environment around it is very necessary, so that the existence of the giant can be seen at a glance.
"The reason why this is so is because this hollow wool is waterproof and insulated, which is equivalent to the onion dressing method we use, which can not only meet the needs of mimicry, but also keep warm."
The onion dressing method Bi Fang has also mentioned before. Compared with thick clothes, the same thickness of multiple thin clothes will be more insulating. A thin air layer is formed between the clothes, which blocks heat loss.
Effect.
It is also easy to put on and take off to achieve the effect of use in different environments.
For example, Bi Fang needs to build a shelter next, and the amount of exercise is slightly higher, so he can take off one layer to avoid sweating.
As Bifang moved forward, the snow on the ground began to accumulate. This was good news, indicating that he was approaching land.
"I have always said before that one of the keys to survival is to know where you are. As long as you know where you are, you can be prepared for many things."
“Greenland has a high latitude, a high average altitude, and is covered by glaciers, resulting in the existence of a cold high pressure on Greenland all year round. Due to the cold high pressure, the temperature in Greenland is low, and Greenland is surrounded by many cold currents.
It further promotes its cooling effect.”
"But do you still remember that Svalbard has a higher latitude, but the temperature is very warm? This is because the Atlantic warm and humid air current is very strong, which will bring abundant precipitation to the coast. In winter, the Atlantic warm and humid air current reaches its peak and is very strong.
.”
"When the two collide, it is the most common cold and warm front system in geography textbooks. It just doesn't rain but snows, so Greenland has many snowstorms."
"But Greenland itself is surrounded by cold currents, and due to its terrain, it cannot be driven straight in. Snow will only replenish the ice cover to a certain extent in the edge areas in autumn and winter. At this time, the sea surface has just begun to freeze and continues to spread outside."