Foundation Ice StreamKamb Ice StreamWhillans Ice StreamLong-range airborne geophysical measurements were carried out in the ICEGRAV campaigns, covering hitherto unexplored parts of interior East Antarctica and part of the Antarctic Peninsula. The airborne surveys provided a regional coverage of gravity, ...
vehicle. Each position was checked up by surveying technique such as triangulation, and resulted error in location of sounding stations was less than 1 km in the greater part of the survey area44. These data were compiled into the submarine topographic map of Lützow-Holm Bay and published47...
is grounded below sea level and, therefore, vulnerable to ocean forcing. Here, we use bathymetric and oceanographic observations from previously unsampled parts of the Totten continental shelf to reveal on-shelf warm water pathways defined by deep topographic features. Access ...
A topographic hinge-zone divides coastal and inland ice dynamic regimes in East AntarcticaThe impact of late Cenozoic climate on the East Antarctic Ice Sheet is uncertain. Poorly constrained patterns of relative ice thinning and thickening impair the reconstruction of past ice-sheet dynamics and ...
that of the neighbouring Amundsen Sea ice shelves29. The complex network of topographic rises at the ice front channel ocean currents under the sub-ice shelf cavity, driving a highly localised spatial pattern of ice thinning, with the strongest rates observed at the grounding line30. Spatially ...
The characterisation of sea ice has also been greatly improved in topographic details, as well as a more detailed description of icebergs and ice pancakes. For snow, the surface and depth characterisation are also much finer. The UAV surveys are having great importance in the fauna topic in ...
Figure 2. Location of main glaciers and topographic features on the west coast of Admiralty Bay (Antarctic Specially Protected Area No. 128) and Arctowski; contours of glaciers from Pudełko et al. [8]. SH—Sphinx Hill, CN—Czajkowski Needle, ZA—Zamek, AP—Agat Point, SI—Siodło, ...
3.2. ICESat-2 ATL06 Data Set The NASA ICESat-2 mission launched in September 2018 carries a single instrument onboard: the Advanced Topographic Laser Altimeter System (ATLAS), a photon-counting laser altimeter using 532 nm wavelength laser pulses [10]. The six individual ATLAS beams are arran...
Our experience also underlines the importance of precise topographic elevation data for flights beyond the visual line of sight in particular with flight heights below 100 m AGL to ensure adequate image overlap and to prevent unintended ground contact. Another advantage of the low- and slow-flying...