Koch, Inka; Drews, Reinhard; Muhle, Lea Sophie; Franke, Steven; Jansen, Daniela; Oraschewski, Falk M; Spiegel, Heiko; Višnjević, Vjeran; Matsuoka, Kenichi; Pattyn, Frank; Eisen, Olaf (2023): Internal reflection horizons of ice shelves and ice rises in eastern Dronning Maud Land (East Antarctica) - Belare 2010 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.950388, In: Koch, I et al. (2023): Internal reflection horizons of ice shelves and ice rises in eastern Dronning Maud Land (East Antarctica) from multisystem radio-echo sounding data [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.950383
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Abstract:
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).
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Coverage:
Median Latitude: -70.557247 * Median Longitude: 24.989825 * South-bound Latitude: -70.690681 * West-bound Longitude: 23.421849 * North-bound Latitude: -70.321125 * East-bound Longitude: 26.256014
Date/Time Start: 2010-12-12T00:00:00 * Date/Time End: 2010-12-14T00:00:00
Event(s):
BELARE20101212 * Latitude Start: -70.321125 * Longitude Start: 26.256014 * Latitude End: -70.433608 * Longitude End: 26.134995 * Date/Time: 2010-12-12T00:00:00 * Location: Antarctica * Campaign: BELARE2010-2011 (Belgian Antarctic Research Expedition) * Basis: Princess Elisabeth Station * Method/Device: Radar - Ground-based dipole antenna (GBDA)
BELARE20101213 * Latitude Start: -70.394372 * Longitude Start: 26.198511 * Latitude End: -70.580010 * Longitude End: 25.074780 * Date/Time: 2010-12-13T00:00:00 * Location: Antarctica * Campaign: BELARE2010-2011 (Belgian Antarctic Research Expedition) * Basis: Princess Elisabeth Station * Method/Device: Radar - Ground-based dipole antenna (GBDA)
BELARE20101214 * Latitude Start: -70.579915 * Longitude Start: 25.074634 * Latitude End: -70.605127 * Longitude End: 23.421849 * Date/Time: 2010-12-14T00:00:00 * Location: Antarctica * Campaign: BELARE2010-2011 (Belgian Antarctic Research Expedition) * Basis: Princess Elisabeth Station * Method/Device: Radar - Ground-based dipole antenna (GBDA)
Comment:
Dataset: Internal reflection horizions (IRHS) in the Roi Baudouin Ice Shelf (RBIS)
radar type: Ground-based dipole antennae
frequency: 5 MHz
coordinator: Reinhard Drews
tracing operator(s): Leah Sophie Muhle, Inka Koch
original file names: data20101212-gl_lv1, data20101213_lv1, data20101214_lv1
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Notes:
IRHs have unique identifiers and are sorted according to depth along the combined profile (see figure)
IRH 24 is pattern-matched across two original files
Visual pattern matching has been applied when horizontal gaps occur in IRHs
basal pick is corrected to the first break
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Change history:
2024-08-05T04:51:29 – Unit of Polar stereographic projection changed from "km" to "m".
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
390253 data points
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