An ice stream margin as seen with high resolution radar

In connection with the East Grip ice core drilling project airborne and groundbased multichannel radar systems were used to look in detail at the internal structures inside and outside of the Northeast Greenland Icestream. While the icestream margins surface expression is just delineated by slight depressions their internal structures are characterized by rather complicated multifold elements. These features hopefully can be used to better characterize the dynamics inherent in icestream systems