A mass conservation approach for mapping glacier ice thickness

摘要: The traditional method for interpolating ice thickness data from airborne radar sounding surveys onto regular grids is to employ geostatistical techniques such as kriging. While this approach provides continuous maps of thickness, it generates products that are not consistent with flow dynamics and impractical high resolution simulations. Here, we present a novel combines sparse collected by profilers swath mapping velocity derived satellite synthetic-aperture interferometry obtain map conserves mass minimizes the departure observations. We apply case Nioghalvfjerdsfjorden (79North) Glacier, major outlet glacier in northeast Greenland has been relatively stable recent decades. results show our conserving removes anomalies flux divergence, yields interpolated within about 5% original data, produces directly usable spatial-resolution, high-order models. discuss application broad detailed sheet thickness. Copyright 2011 American Geophysical Union.