BBC紀錄片《冰凍星球》履于薄冰第10期:冰川鍋穴

[00:01:18]Alun Hubbard is a glaciologist, 這些瀑布叫做冰川鍋穴 [00:03:36]studying the enormous power 冰河學家艾倫·哈伯德 [00:05:13]of these waterfalls, which are known as moulins. 研究的便是它們的巨大能量 [00:07:35]We've got this amazing moulin going off here today. 今天我們找到了這個非凡的冰川鍋穴 [00:13:42]The water's overflowing from the lake, which is beginning to drain. 從湖里溢出來的水正在慢慢流干 [00:18:20]Tonnes of water cas cading down this pipe that is, effectively, 無數(shù)噸的水從這里傾瀉而下 [00:23:29]plummeting to the depths of the ice sheet through 相當于是從一千米高的冰川上 [00:26:39]over a kilometre of vertical ice. 驟然跌落至冰原最深處 [00:29:30]Alun is here to study where the melt water goes 艾倫來這里是為了研究這些水流去了哪里 [00:40:07]and what effect it has on the remaining ice. 以及剩下的冰川會受到什么影響 [00:43:11]To do that, 為此 [00:43:59]he needs to find a moulin that has recently run dry. 他要找到一個剛流干的冰川鍋穴 [00:46:55]Just a week ago, there was 僅一個星期前 這里有一個 [00:50:54]a three-mile long, ten-metre deep lake here. 三英里長 十米深的湖 [00:58:31]The weight of all that water cracked the ice beneath 這些水的重量把下面的冰都壓碎了 [01:03:19]and the lake drained in just a few hours 湖水傾瀉而出 [01:05:37]with incredible force. 幾小時內(nèi)就流干了

00:00

00:00

MP3下載 文本下載