北冰洋漩涡
[img]http://esamultimedia.esa.int/images/imageoftheweek/Greenland_H1.jpg[/img]This Envisat image, acquired 14 June 2008, captures the marginal ice zone of the Greenland Sea during the onset of spring melting. The bright white swirls at the ice edge are traced out by brash ice – small sea-ice fragments of ice floes that have been broken up by waves. Larger ice floes can be spotted drifting southwards in the East Greenland Current, which flows southward along the eastern coast of Greenland (visible running down image left). Swirls indicate drift of the small pieces of ice in response to ocean vortexes, or ‘eddies’, and are an expression of the ocean surface currents. The myriad of swirls show how dynamic the upper ocean is at this time of year because of strong gradients in temperature and salinity.
这张Envisat（欧空局的极轨环境卫星）的图片获得于2008年6月14日，捕获到了处在春季消融开始阶段格陵兰海冰区边缘。冰面边缘亮白色的漩涡为碎冰所描绘，这些碎冰是浮冰被海波破碎后的小块海冰碎块。可以看到较大的浮冰正在向南漂进东格林兰洋流，该洋流沿格林兰东海岸向南流动（在图像左侧[color=SandyBrown]（为啥我觉得是右侧？）[/color]向下流动）。漩涡标明小块的冰对大洋涡流的响应，也是海洋表层水流的一种表现。无数的漩涡显示了一年中的这一时节大洋上部由于强烈的温度和盐度梯度形成的动态变化。 图好大啊!漂亮!!!::42:: ::42:: ::42:: 不错 很漂亮哦 北冰洋不冰了~
::30:: 好图啊！收藏了::0022::
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