Since 2004, sea ice observations as part of Canadian Arctic Sea Ice Mass Balance Observatory (CASIMBO) have been conducted in the Lincoln Sea region of the Arctic Ocean. In May 2010, airborne EM induction measurements as well as ground based measurements of EM induction, ice and snow thickness, snow density, and ice cores were collected. Comparisons between the airborne and ground based ice thickness techniques and to past observations are presented. Results from in-situ measurements of snow thickness, snow density and ice core analysis are also presented. Furthermore, the use of differential GPS for ice floe/ridge mapping is presented.