“巅峰使命”珠峰科考 | 大气臭氧垂直探空实验完成
5月6日，珠峰大气与人体健康科考分队完成了珠峰地区大气臭氧垂直探空实验，实验共放飞了十次探空气球，最高一次气球飞升至距离珠峰大本营地面39.1公里的空中。
5月6日中午12时许，第十次探空气球放飞实验在珠峰大本营展开。充满氦气的探空气球，经过一个半小时的飞行后，停留在距离珠峰大本营地面38.2公里的空中。这不是实验中探空气球飞升最高的一次。专家介绍，之前探空气球最高曾飞升至距离珠峰大本营地面39.1公里的空中。
A high-altitude ozone observation campaign was completed on Friday on Mount Qomolangma, the world's highest peak located on the China-Nepal border, by researchers from China's "Earth Summit Mission 2022" scientific expedition, according to the Chinese Academy of Sciences.
The ongoing expedition is part of China's second comprehensive scientific research project on the Qinghai-Tibet Plateau, launched in 2017.
Scientists launched a dozen ozonesonde balloons from the base camp to an altitude of 5,200 meters, with the highest balloon reaching 39.1 km above the base camp.
中科院院士，北京大学环境科学与工程学院院长朱彤介绍称，通过臭氧探空，可以知道臭氧在地面到高空之间的一个分布，这对我们的健康，对我们的大气有很重要的影响。
The campaign aims to learn about the impact of ozone on human health and the environment.
"We mainly want to look into the ozone that is both beneficial when in the stratosphere for blocking the sun's UV rays and providing human beings with a protective layer, and detrimental to human health when on the ground, where it becomes active and is harmful to our respiratory system," said Zhu Tong, head of the College of Environmental Sciences and Engineering at Peking University.
"With the help of our ozonesonde balloons, we can measure the distribution of the ozone from ground to the upper atmosphere – the volume of ozone generated on the ground and transmitted to the ground from the stratosphere – as it has an important influence on our health and the atmosphere."
十次探空气球飞行高度均在距离珠峰大本营地面30至40公里之间的空中，这个高度意味着什么呢？
对此，朱彤解释说，这个高度的数据对于我们对各个层面的臭氧密度，其成因，以及它如何从空气中交换和传播到地面，形成更深刻和系统的了解。
Zhu also noted that scientific research at such a high altitude would allow researchers to better understand the vertical profile of ozone in an environment relatively less disturbed by human activities.
"We will gain a more profound and systematic understanding of the ozone density at every level, the causation of it, and how it is exchanged and transmitted from the air to the ground. Going up 39 kilometers perfectly covers the entire spatial ozone distribution, including the stratosphere which is between 30 to 40 kilometers in altitude," he said.
The researcher added that with this level of coverage of ozone density, they have acquired valuable data, which are of great importance to the study of the environment on the Qinghai-Tibet Plateau and Mount Qomolangma.