为什么南极洲的麦克默多站比朗伊尔城(挪威)更危险,而朗伊尔城更接近极地?-地江南体育网页版球科学堆栈交换江南电子竞技平台 最近30个来自www.hoelymoley.com 2023 - 04 - 03 - t01:00:42z //www.hoelymoley.com/feeds/question/15786 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/15786 9 为什么南极洲的麦克默多站比朗伊尔城(挪威)更危险,而朗伊尔城更接近极地? Speedphoenix //www.hoelymoley.com/users/14561 2018 - 12 - 17 - t18:11:19z 2019 - 08 - 27 - t16:12:39z 南极洲的麦克默多站(由美国运营)南纬77.85度(东经166.69度),朗伊尔城(挪威)是最北的定居点,全年有定期航班,北纬78.24度(东经15.47度)。朗伊尔城比麦克默多在南方更靠北,但麦克默多在冬季很少有航班,而且总体上似乎是一个更加恶劣的环境。为什么呢?< / p > //www.hoelymoley.com/questions/15786/-/15789#15789 5 为什么南极洲的麦克默多站比朗伊尔城(挪威)更危险,而朗伊尔城更接近极地? 埃里克 //www.hoelymoley.com/users/14194 2018 - 12 - 18 - t07:49:44z 2019 - 05 - 29 - t13:38:56z 关于航班的问题:麦克默多距离下一个机场(新西兰南部的达尼丁)约3500公里,而朗伊尔城距离特罗姆瑟仅950公里。这仅仅是由于飞行的距离和所需的成本和风险。< / p >

Antarctica being a continent completely surrounded by water allows for specific climatic conditions. First of all, continental climate near the poles is often harsher than oceanic, since the annual changes in temperature tend to be very high. Antartica in specific gets really cold, due to no sunshine during the winter and the continental climate.

Secondly there is no land which hinders the circulation of water and air around Antarctica ("Screaming Sixties"). This circulation effectively cuts off most of air-flow across 60°-latitude from the north, thus preventing warmer air from flowing down south.

//www.hoelymoley.com/questions/15786/-/15798#15798 6 为什么南极洲的麦克默多站比朗伊尔城(挪威)更危险,而朗伊尔城更接近极地? 卡米洛·Rada //www.hoelymoley.com/users/11908 2018 - 12 - 19 - t07:18:05z 2018 - 12 - 19 - t09:29:51z 缺乏从赤道纬度进入南极洲及其周围的海洋和大气流意味着与斯瓦尔巴群岛相比,从热带纬度输送到南极洲的热量要少得多。因此,在相同的纬度(即相同的太阳隔离),南方的温度要低得多。在南极,在南纬75°的地方,大部分土地都有永久的积雪。< / p >

As for the flights, in addition to the fact regarding the distances mentioned by Erik, also consider that the only landing strip in McMurdo that can be used by planes with wheels is over an ice shelf (a floating platform of ice). Therefore, installing proper airport instrumentation is impossible, and landing is performed mostly by visual navigation. This is something that can not be done safely in the permanent darkness of winter months or in bad Weather.

There are scheduled commercial flights in summer from Punta Arenas to Union Glacier (latitude 80°S and more hostile than McMurdo). But they are extremely weather dependent. Most flights gets delayed, and waiting a week to fly is not unusual (it was even more common when the landing strip was some kilometers south in Patriot Hills). Therefore, an Ilyushin 76 plane is waiting in Punta Arenas the whole summer just to fly once a week at most. All that added to many other logistical complications makes the round trip ticket to Union Glacier about USD$22,000. It wouldn't be much cheaper to McMurdo, so you can imagine that few people will be able to afford it. Therefore it is kind of a niche business that is not attractive for commercial airlines.

The only landing strip that is on solid ground in Antarctica and is large enough to receive commercial planes (medium size, nothing big) is on King George Island (latitude 62°S). DAP airlines also has scheduled commercial flights there, but they are also extremely expensive. Tourist flow in winter is minimal; Auroras generally aren't seen there, and therefore there is little draw for tourists to visit during the winter.

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