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) - CHIRP_20190106_02 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.950382, 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: -70.629596 * Median Longitude: 23.489129 * South-bound Latitude: -71.060848 * West-bound Longitude: 20.350910 * North-bound Latitude: -70.311138 * East-bound Longitude: 26.260530
Date/Time Start: 2019-01-06T00:00:00 * Date/Time End: 2019-01-06T00:00:00
Event(s):
P6_215_UWB_2018_1901061302 * Latitude Start: -71.949300 * Longitude Start: 23.299570 * Latitude End: -71.949295 * Longitude End: 23.299957 * Date/Time Start: 2019-01-06T13:05:47 * Date/Time End: 2019-01-06T16:26:47 * Campaign: P6_215_UWB_2018 (JuRaS, CHIRP) * Basis: POLAR 6 * Method/Device: Aircraft (AC)
Comment:
radar type: airborne AWI UWB (MCoRDS 5), SAR focussed
frequency: 150 – 520 MHz, transmission signal: linear frequency modulated chirp
coordinator: Reinhard Drews
tracing operator(s): Inka Koch, Leah Sophie Muhle
original file names: 20190106_02_002, 20190106_02_003, 20190106_02_004, 20190106_02_005, 20190106_02_006
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Notes:
IRHs 1 - 8 are sorted according to depth with the shallowest layer having the smallest ID number
IRHs 9 to 12 are individual IRHs not nescessarily sorted by depth
IRHs 2 & 5 are pattern-matched with IRHs from MCoRDS profiles collected 20190107
Other IRHs are not to be matched with IRHs of the same name in MCoRDS profiles collected 20190107
Visual pattern matching has been applied when gaps occur in the IRHs
basal pick is corrected to the first break
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License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
437361 data points
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