Following the polar sunrise, ozone in the Arctic boundary layter abruptly disappears.  Part of our current research is to understand the influence of surface depostion processes on ozone removal in the Arctic. We employ tethered balloons, sonic anemometers, and trace gas analzyers to study ozone fluxes over the Arctic ocean and land. We are also collaborating with colleagues to decipher the contribution of vertical turbulent transport on the recovery of ozone in the Arctic boundary layer following depletion events. This research is being done at Alert, Nunavut, Canada which is a place about 380 km south of the North Pole. We recently  participated in the ALERT 2000 project.  During spring 2003, we also carried a field project to investigate the turbulence characteristics of the lower 300 m of the Arctic boundary layer.  There are plans to return to the Arctic during the spring in 2006 and 2007.  The research outlined here is being supported by the Office of Polar Programs, National Science Foundation.