BBC紀(jì)錄片《冰凍星球》履于薄冰第11期:讓湖水消失的洞穴

[00:00:24]Alun's team have found the hole down which the lake disappeared 艾倫的團(tuán)隊(duì)已經(jīng)找到了讓湖水消失的洞穴 [00:03:40]and they want to have a closer look. 他們想要來(lái)個(gè)近距離觀察 [00:06:17]It's not a job for anyone with a fear of heights. 這對(duì)恐高的人來(lái)說(shuō)是絕不可能的 [00:16:10]As you can see, it's dry up here, 可以看到這里已經(jīng)干涸 [00:17:31]but if you listen, 但如果仔細(xì)聽(tīng) [00:18:37]you can hear the thunder of, 便能聽(tīng)到大量的流水 [00:20:04]there's a lot of water entering it at some depth. 從深處貫入其中的隆隆聲 [00:24:54]Alun wants to place a sensor deep into the moulin 艾倫想在冰川鍋穴深處安裝一個(gè)傳感器 [00:28:25]to discover how much water is flowing through the ice. 來(lái)研究有多少水在冰川里穿梭 [00:37:36]As they drop, they travel back in time. 向下深入的時(shí)候 他們仿佛回到了從前 [00:42:52]30 metres down and they reach ice formed from snow that fell 三十米深處的冰是一萬(wàn)年前 [00:47:05]10,000 years ago, in the last Ice Age. 冰河世紀(jì)時(shí)期的降雪堆積起來(lái)的 [00:52:36]When this lake drained and the plug got pulled 一旦湖水干涸 就像打開(kāi)了閥門(mén) [00:56:12]and the whole lot flushed down through here, 整個(gè)水流都會(huì)從這沖刷而下 [01:00:25]this ice sheet, it rose by a metre 這塊冰原就會(huì)增高一米 [01:03:26]as that water accessed the bed and forced, 因?yàn)樗鞯搅吮仓? [01:06:11]jacked up the ice sheet. 迫使冰原提升 [01:07:59]So, we know that the water 我們知道 [01:09:28]in this whole plumbing cavity system, down here, 水在這整個(gè)垂直墜落過(guò)程中 [01:13:45]we know that shoots straight through that ice 徑直沖破了冰川 [01:16:40]and actually hits the bed of the ice sheet. 直接撞擊了冰原的底部 [01:19:43]We've hit the water, I can see the water now. 我們到水邊了 我能看到水了 [01:22:21]Great. Nice work. 很棒 干得漂亮

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