glaciern.冰河;冰川
glacier change冰川变化
glacier melting冰川消融
glacier mapping冰川测图
Glacier vestige冰川遗迹
glacier surging跃动冰川
glacier retreat冰川后退
glacier pothole冰川壶穴
glacier dynamics冰川动力学
glacier fissures冰川裂隙
glaciers retreat冰川退缩