Internal reflection horizons of ice shelves and ice rises in eastern Dronning Maud Land (East Antarctica) - Bewise 2012 ...

• Main Authors: Koch, Inka, Drews, Reinhard, Muhle, Lea Sophie, Franke, Steven, Jansen, Daniela, Oraschewski, Falk, Spiegel, Heiko, Višnjević, Vjeran, Matsuoka, Kenichi, Pattyn, Frank, Eisen, Olaf
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Airborne Radar; Antarctica; AWI UWB; Dronning Maud Land; ice rise; Ice shelf; Internal Reflection Horizon; IRH; radar; DATE/TIME; Survey ID; Profile; LONGITUDE; LATITUDE; Polar stereographic projection, X; Polar stereographic projection, Y; Trace Number; Pick Date/Time; Two-way traveltime to ice base; Two-way traveltime to internal reflection horizon; Radar - Ground-based dipole antenna; BEWISE2012; Princess Elisabeth Station; Antarctic; East Antarctica; Roi Baudouin; The Antarctic; Antarc*; Ice Sheet; Ice Shelf; Ice Shelves
• Online Access: https://dx.doi.org/10.1594/pangaea.950389; https://doi.pangaea.de/10.1594/PANGAEA.950389

Ice shelves regulate ice flow from the Antarctic ice sheet towards the ocean and their evolution depends on spatiotemporal patterns of surface accumulation, basal melt, and ice dynamics. These processes shape the ice stratigraphy, which can be imaged by radar and digitized in the form of internal reflection horizons (IRHs). Here, we synthesized IRHs from three airborne and ground-based surveys covering three ice rises and shelves in coastal eastern Dronning Maud Land (East Antarctica). ... : Dataset: Internal reflection horizions (IRHS) in the Roi Baudouin Ice Shelf (RBIS)radar type: Ground-based dipole antennaefrequency: 20 MHzcoordinator: Reinhard Drewstracing operator(s): Leah Sophie Muhle, Inka Kochoriginal file names: pp1 (08.12.2022), pp1_L1L2 (09.12.2022), L3L4 (10.12.2022), AlongFlow_CrossValley (11.12.2022), L5east (12.12.2022)---Notes:IRHs 1-9 are sorted according to depth with the shallowest layer having the smallest ID number, these IRHs were also verified at cross-pointsIRHs 10 - 24 are unique IRHs not nescessarily sorted by depth IRHs 13-14 were also verified at cross-pointsVisual pattern matching has been applied when horizontal gaps occur in IRHsbasal pick is corrected to the first break ...