Math REU student and VIGRE Graduate Fellow Adam Gully (right) setting up a transect for electrical resistance measurements (surface impedance tomography). The reconstructed profiles are correlated with thickness soundings from electromagnetic induction experiments conducted by Kazu Tateyama (left), a research scientist at the Kitami Institute of Technology in Hokkaido, Japan. Photo taken by Ken Golden during the Sea Ice Physics and Ecosystem eXperiment (SIPEX), September 2007.