China’s third time to measure the height of Mount Everest, 8844 meters will become history, but netizens think it is unnecessary

As the top of the earth, Mount Qomolangma has attracted worldwide attention. With the rapid development of human science and technology, more accurate measurement of Mount Everest has become the goal.

As we all know, Mount Everest is located on the border between China and Nepal and is shared by the two countries. In order to jointly promote cooperation in climate change, ecological environment and other aspects, China and Nepal jointly announced the height of Mount Everest and carried out scientific research cooperation.

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The survey and mountaineering team, which is composed of China’s first survey team and China’s mountaineering team, officially launched the summit operation of 2020 Everest elevation survey on May 6.

CCTV interpretation: how many steps does it take to Mount Everest?

Step 1: the surveyors set out from the base camp of Mount Everest at an altitude of 5200 meters, passed Rongbu glacier and East Rongbu glacier, and arrived at the middle camp at an altitude of 5800 meters for camping.

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Step 2: start from the middle camp and reach the forward camp at an altitude of 6500 meters.

The third step: starting from Qianjin camp, pass the ice wall of Beiao at an altitude of 6600-7000 meters to reach camp 1 at an altitude of 7028 meters.

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The second step is from the No. 4 camp at an altitude of 7500 meters.

Step 5: continue from Camp 2 to camp 3 at an altitude of 8300 meters.

Step 6: according to the weather conditions, climb the second step of 8680-8700 meters in Shanghai to prepare for the sprint to the summit.

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Step 7: sprint to the top of Mount Everest, reach the top successfully, erect the target on the top of Mount Everest, carry out the survey work with the surveyors of six intersection points, and calculate the new elevation of Mount Everest.

This is the third time to measure the height of Mt. Everest in China.

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In 1975, for the first time in China, the surveying target was erected on the top of Mt. Everest, and the elevation of Mt. Everest was 8848.13 meters.

In 2005, China’s survey team carried out a re survey of the elevation of Mt. Qomolangma, using the combination of traditional geodesy and satellite survey, and measured the elevation of the rock surface at the top of Mt. Qomolangma as 8844.43 meters.

Many netizens did not understand the third survey of Mt. Everest this year, saying it was unnecessary. They think that Everest is the highest mountain in the world, so there is no need to worry about the difference between one meter and two meters.

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But Xiaobian thinks it is absolutely necessary. Why?

first

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As mentioned above, the data of the two measurements of Mt. Everest in China are different from those of other countries in the world, and they are not unified.

Mount Qomolangma is located on the border of China. If the Chinese government can put forward the authoritative height, it should be, and it is also a manifestation of our national sovereignty.

second

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Because the Qomolangma is located in the compression area between the Eurasian plate and the Indian Ocean plate, the geological structure is unstable, so the height of the Qomolangma will change, and the height measured at different times will be different.

The latest results of our measurements can be used in the study of crustal movement and other fields, so that we can grasp the change law of Mount Everest; like the ice sheet changes in the north and south poles, we can also interpret global climate change; we can also measure the snow depth and meteorological data on the top of the world’s highest peak, and provide first-hand data for the study of ecological and environmental protection.

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third

If we can accurately measure the elevation of Mt. Everest, what else can we not measure in the world! See here is not a sense of pride suddenly!

Now that modern science and technology are very advanced, why can’t we fly to the peak directly by helicopter, or measure directly by high-tech means such as UAV, and we have to climb step by step? Let’s look at the experts’ answers.

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Dang Yamin, a researcher at the Chinese Academy of Surveying and mapping, explained:

“If we don’t go to the peak manually, there will be no measurement of snow depth, so it can’t be released as a very accurate result. As far as the present situation is concerned, it is not enough to use satellite remote sensing images to measure the accuracy of Mt. Everest. Only by professional surveyors can the survey data be more reliable and convincing. “

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“When working on the top of Mount Everest, the requirements for helicopters are very high. The place on the top of Mount Everest is very small. It is necessary to unload the measuring team and measuring equipment from the aircraft. In this process, the aircraft can not land, but can only be carried out in the process of movement. The wind caused by the spiral of the aircraft may cause the collapse of ice and snow. “

Xiaobian thinks that it’s really not easy for an accurate data. Pay homage to the climbers and work hard for your great contribution!

Do you have any ideas about the elevation survey of Mount Everest? Welcome to the comments section.

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