Since 2002, the Envisat radar altimeter has measured the elevation of the Antarctic ice sheet with a repeat cycle of 35 days. This long and regular time series is processed using an along-track algorithm to depict in detail the spatial and temporal pattern of elevation change for the whole ice sheet. We use this dataset to examine the spatial and temporal pattern of Pine Island Glacier (PIG) th...

Introduction. One of the major unsolved puzzles about the surface of Venus is the composition and formation process of the radar-bright, low emissivity material that covers much of the high altitude terrain. Maxwell Montes, centered at a latitude of 65◦ N, is the tallest structure on Venus with elevations 12 km above the mean planetary radius (MPR) [1]. In the case of Maxwell Montes, the emissi...

Introduction: Recent observations by the Cassini spacecraft show widespread regions of longitudinal dunes on Saturn’s moon Titan [1]. The exact composition of the dunes is not known, but its radar and infrared return suggest an organic component [2]. Given the broad extent of the dunes (they cover 40% of Titan’s equatorial areas), they constitute an important portion of Titan’s overall organic ...

Abstract We present new high-resolution topographic, illumination, and thermal models of Mercury’s 112 km diameter north polar crater, Prokofiev. The confirm previous results that water ice is stable at the surface within permanently shadowed regions (PSRs) Prokofiev for geologic timescales. largest radar-bright region in confirmed to extend up several kilometers past boundary its PSR, making i...