在南极体验“杀人风”:恐怖骇人 威力强劲
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2010.1.13在南极体验“杀人风”
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在南极考察队员中流传着这样一句话:南极的冷不一定能冻死人,但南极的风能杀人。到了南极内陆会发现,这话一点没错。
自从我们1日转移营地到哈丁山附近以来,狂风几乎就没有停止过,昼夜与我们相伴。在住舱里,总是能听到呼啸的风声,有时连住舱也会跟着发生轻微摇摆,最初我还担心住舱被风掀翻,现在倒是已经习惯了每天伴着狂风的怒吼入眠,又伴着狂风的嘶鸣醒来。
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这是南极典型的“下降风”。由于南极大陆是中部隆起向四周倾斜的高原,一旦沉重的冷空气沿着南极高原光滑的表面向四周俯冲下来,便会顿时狂风大作,一场可怕的极地风暴就这样产生了。
在1800米至3000米的南极内陆高原,这种下降风尤为剧烈而频繁,而平均海拔在2000米以上的格罗夫山地区恰恰就位于下降风盛行的这一区间之内。
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狂风席卷起冰面上细细的雪粒,漫天飞舞,就形成了南极特有的“地吹雪”。从雪面上看,“地吹雪”仿佛一条条巨蛇,蜿蜒爬行,遇到障碍物就会腾空而起,所以营地附近的萨哈罗夫岭顶峰,仿佛常常冒起阵阵白烟。
狂风会很快带走人体的热量,使人发生冻伤甚至冻死事故。因此,在狂风来临时,考察队就会暂停野外考察,宿营休整。这段时间我们也发现了一些狂风“作息”的规律——一般都是夜里至上午风力最大,下午至傍晚风力稍小,好在已经进入极昼的南极现在是没有白天黑夜之分的,我们就干脆上午睡觉,下午或晚上出去干活。
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等到积雪几乎将我们的雪橇掩埋起来,我们就要转移营地了。十几天来,我们已经转移了两次营地。雪地车上悬挂的队旗,也被狂风吹得少了一道边。听副队长魏福海说,去年昆仑队返回中山站时,车上的队旗只剩下最靠近旗杆的一条白色带子了,南极的风真是太凶猛了~听说国内最近也降下了几十年不遇的暴雪,看来,我们真的可以“寰球同此凉热”了呵呵~
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