By analyzing satellite photos , geologists are able to evaluate the profundity of the lakes that form on glaciers during the summer months . Fascinatingly , the appendage that make these lake is also responsible for for their remarkable depth .
Satellite image of Greenland ’s Jakobshavn Glacier reveal a meshing of lake strewn across the top of its Earth’s surface . These seasonal lake expand in sizing because they ’re morose than the ice around them , causing the melt water to absorb more energy from the sun . Once a pool of water come forth , a feedback result accelerate its growth .
By psychoanalyse the iniquity of each lake , scientist can determine its depth . Some are just a few base recondite , while others can get as deep as 30 feet ( 9 meters ) .
In some cases , the lakes get so freehanded that they produce break that drill all the way down to the bottom of the glacier , from where it travels and spills into the ocean . scientist suspect that this process temporarily hotfoot up the stream of the icing .
[ NASA Goddard Media Studios ]
Climate changeglaciersScience
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