meltwater

Meltwater

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Synopsis: Oceanography: Water: Meltwater:

R_www.technology.org 2015 11859.txt.txt

#Scientists pioneer method to track water flowing through glaciers Researchers for the first time have used seismic sensors to track meltwater flowing through glaciers and into the ocean,

or meltwater, that has flowed through Alaska Yahtse Glacier and into the ocean. Scientists at The University of Texas at Austin have pioneered a method to track meltwater flowing through glaciers that end in the ocean.

The University of Texas Institute for Geophysics (UTIG) helped pioneer this new method on glaciers in Greenland and Alaska.

Meltwater moving through a glacier into the ocean is critically important because it can increase melting

a postdoctoral fellow at UTIG and the study lead author. ubglacial discharge provides that stirring. he new technique offers scientists a tool for tracking meltwater at glaciers that end in the ocean, called tidewater glaciers.

Unlike landlocked glaciers, where scientists can simply measure the meltwater flowing in glacial rivers there previously had not been a method available to track

we need to know what occurring with the meltwater being discharged from the glacier. TIG research associate Jake Walter worked on the study.

they discovered that the seismic vibrations being detected by the equipment was caused by meltwater percolating down through the glacier and weaving its way through the complicated plumbing system in the interior of the ice.

Researchers tested the theory on glaciers with meltwater rivers and found that the timing of the meltwater

and the seismic signals synced perfectly. The method is very good at identifying when the glacial discharge is flowing into the ocean,

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