In the late 1970s the convective system that is referred to as the bow echo was identified by Fujita (1978). It was identified as a type of convective storm structure associated with intense damaging winds or downburst (Johns 1993). As more of these systems were studied, a better understanding was made on their kinematic structure and dynamical processes. Bow echoes can range in size from 15 km...

Optimum radar resolution is recognized to be a problem in distinguisltmg between different possible target configurations. Radar reception systems which perform optimum range resolution are then designed using the principles of statistical decision theory. In particular, the design of the optimum resolution system is carried out for a squared-error loss function, modified to provide extra penal...

Radio-echo sounding (RES) reveals patches of high backscatter in basal ice units, which represent distinct englacial features the bottom parts glaciers and sheets. Their material composition physical properties are largely unknown due to their direct inaccessibility but could provide significant information on state as well present past processes at ice-sheet base. Here, we investigate units by...