阿拉斯加十大冰河奇迹 冰河埋葬火山树林(图)(6)
![阿拉斯加十大冰河奇迹 冰河埋葬火山树林(图) 阿拉斯加十大冰河奇迹 冰河埋葬火山树林(图)](http://images2.china.com/tech/zh_cn/science/nature/11023062/20090416/15435019_2009041610021311279600.jpg)
6、冰河在红外线下显得很怪异
冰是冷的,红外线是热的,那么为何还要在红外线下观察冰河呢?因为在红外线下能看到肉眼所看不到的许多冰河细节。这张1998年拍摄的红外线图片展现了二大冰河的汇合处位于左上方,右边是一个冰河湖泊。此湖泊中的冰山是灰黑色的,这是因为它们比水还冷。此图中的这二大冰河都不流动,实际上已经消退了。不过,它们看起来依旧很酷!
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