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

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 re...

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Bibliographic Details
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
Description
Summary: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 ...

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