日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

US EUROPE AFRICA ASIA 中文

Spirit of adventure lives on in Antarctic

By Zhang Lei and Dong Fangyu in Beijing ( China Daily ) Updated: 2014-02-19 01:44:15

A different reality

Life in Antarctica is not at all how the uninitiated perceive this icebound land, imagining perhaps a carpet of glistening snow covering the hillsides and reflecting the crystal-clear blue skies, and female penguins diving into the freezing water, bringing back food for their partners and offspring. To people with a poetic vision, Antarctica is a continuation of the natural life, but to those on expeditions, the reality is vastly different.

Cui Xiangbin, a glaciology researcher with the Polar Research Institute of China, stayed at Kunlun Station as a member of China's 28th Antarctic exploration team in 2012. His project was to study the dynamics of the ice sheet by exploring subglacial topography and internal layers via ice-penetrating radar.

At an altitude of 4,093 meters, Kunlun is China's highest Antarctic research establishment, Cui said, as he explained the difficulties inherent in traveling between the stations.

To get to Kunlun Station, for example, his team had to leave Zhongshan Station on the coast and travel 1,300 kilometers in caterpillar-tracked vehicles for more than 20 days.

"Although we carried tons of supplies with us on sleds and snowmobiles, we were still badly in need of drinking water and vegetables," he said. "It took a huge amount of time and energy to melt the ice and sterilize it."

However, the difficulties experienced at inland Antarctica research stations during the summer season are nothing when compared to the rigors faced by "winter-over" teams, especially because they had to undergo nearly two months without sunlight, said Cui.

In such an unforgiving environment, team members are likely to develop "winter-over syndrome," which can involve depression, irritability, insomnia, anger, and a variety of behavioral and medical disorders.

Qu said that once Taishan Station becomes fully operational, the researchers will be able to store enough fuel and supplies to allow them to fully recharge their batteries when they return from Kunlun Station, and will also greatly reduce the loads carried by the tracked vehicles.

‘I love you'

The research team has nicknamed Taishan Station "520", because it's 520 km from Zhongshan Station, and in Chinese, "520" is phonetically similar to "I love you."

Among the advantages Taishan Station enjoys are an ice runway for fixed-wing aircraft and the 400-metric-ton inland transport vehicles and equipment with which the establishment has been fitted, helping to provide logistical support for Kunlun station.

"The purchase of fixed-wing aircraft is currently under way. The use of aircraft will greatly improve the efficiency of cargo transport between the four stations (the others are Zhongshan, the Great Wall and Kunlun), particularly in dealing with illnesses, injuries and other unpredictable circumstances. If sensor devices are installed, the aircraft can carry out a wider range of air monitoring," he said.

Currently the only way the team can travel between the stations is by a snowmobile, which resembles a tank. Instead of wheels, it has large caterpillar tracks which allow it to climb steep, snow-covered hills, but on the downside, its top speed is a mere 30 km per hour, meaning it takes a month to ferry materials and necessities from Zhongshan Station to Kunlun Station.

Fixed-wing aircraft are expected to begin missions in 2015. Once it becomes easier to transport supplies to Kunlun, the station will be upgraded to an all-year research establishment, and Taishan's role will be expanded to include that of a training base.

The lantern-shaped architecture at Taishan Station is supported by eight cylindrical bars, and, according to the designer, chief engineer Wang Zhongjun, the exterior design combines elements from science fiction that make it look like a UFO. However, the design wasn't predicated on appearance alone.

"Buildings in Antarctica cause disturbances in the wind field. Strong winds will bring snow that will cover the station and although the annual snowfall around Taishan Station is only two or three centimeters, even large buildings can easily be buried in just two years. Moreover, because there is no spring thaw in Antarctica, the snow will also accumulate to the point where its weight will crush or deform the station," Wang said.

To solve this problem, the main body of the station is built around a streamlined design, while the entire building is set on stilts 2 meters above the ground, not only to improve wind resistance, but also to help blow away the snow near the building.

Most Popular
Special
...
...
主站蜘蛛池模板: 久久久精品影院 | 久久国产精品久久精品国产 | 琪琪色av | 欧美区亚洲区 | 韩国精品一区二区三区 | 91嫩草丨国产丨精品 | 黄色片一区 | 久久中国 | 欧日韩在线视频 | 成年在线观看 | 亚洲高清资源 | 丁香六月激情综合 | 日韩在线精品 | 欧美在线免费播放 | 免费黄色国产 | 1024国产精品 | 日韩精品视频在线 | 成人在线免费播放 | 亚洲免费片 | 日本黄色大片在线观看 | 成人a毛片| 欧美亚韩一区二区三区 | 成人午夜激情视频 | www.av在线.com| 欧美肥老妇视频 | 欧美成人免费在线 | 国产免费片 | 精品免费看 | 色综合自拍 | 深爱五月网 | 五月婷激情 | 久久久久国产视频 | 天天插天天操 | av老鸭窝| 中文字幕日韩视频 | 可以在线看的av | 久久成人黄色 | 天堂精品在线 | 下北阳光灿烂的日子 | 国产精品www | 久久老女人 |