Calling: Earth.

  In this fourth lightning interview of the third season, Jessica Mejia, a Ph.D. candidate in the USF School of Geosciences discusses her research of moulins (roughly circular, vertical or nearly vertical well-like shafts within a glacier) to understand the connection between glacier hydrology and ice motion of the Greenland Ice Sheet.   More about Jessica can be found here: https://works.bepress.com/jessica-mejia/ http://jessicamejia.myweb.usf.edu/   Calling: Earth is a production of the USF Libraries in cooperation with the USF School of Geosciences. Questions, comments, and any other feedback can be directed to callingearth@usf.edu.