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  • Data  (3)
  • AC; Aircraft; AWI UWB; DATE/TIME; Event label; Flight number; ice thickness; Ice thickness; Ice thickness, uncertainty; Ice Thickness Radar (EMR, MCoRDS); LATITUDE; LONGITUDE; North East Greenland; North Greenland Sea; Number; P6_211_RESURV79_2018_1804140601; P6_211_RESURV79_2018_1804150701; P6_211_RESURV79_2018_1804180901; P6_211_RESURV79_2018_1804231201; P6-211_RESURV79_2018; POINT DISTANCE from start; POLAR 6; Profile ID; radio-echo sounding; RESURV79, FINEGIS; Two-way traveltime  (1)
  • AWI UWB; Binary Object; EGRIP-NOR; EGRIP-NOR-18; File name; Ice dynamics; MULT; Multiple investigations; North East Greenland Ice Stream (NEGIS); P6-211_EGRIP_NOR_2018; POLAR 6; radio echo sounding; RES; shear margins  (1)
  • Conductivity, specific; DEPTH, ice/snow; East Greenland Ice-core Project; EGRIP; Greenland; ICEDRILL; Ice drill; NGRIP; NorthGRIP; Sampling/drilling ice  (1)
  • PANGAEA  (3)
  • Cambridge University Press (CUP)
Document type
  • Data  (3)
Source
Keywords
Publisher
  • PANGAEA  (3)
  • Cambridge University Press (CUP)
Years
  • 1
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    Specific conductivity measured with the dielectric profiling (DEP) technique on the NGRIP2 ice core (down to 1298.525 m depth) (2020)
    PANGAEA
    Details
    Publication Date: 2024-03-25
    Description: Dielectric Profiling (DEP) of the North Greenland Ice Core Project (NGRIP1) core were recorded in the field during the 1996-1998 field seasons with the DEP device described by Wilhelms et al. (1998). The permittivity and conductivity of DEP data are calculated by their respective densities and conductivities (Wilhelms, 2005). The resolution of DEP data is 5 mm depth intervals. The DEP was not processed at a consistent temperature due to the varying temperature in the field seasons. For more information on the calibration procedure see Mojtabavi et al, 2020.
    Keywords: Conductivity, specific; DEPTH, ice/snow; East Greenland Ice-core Project; EGRIP; Greenland; ICEDRILL; Ice drill; NGRIP; NorthGRIP; Sampling/drilling ice
    Type: Dataset
    Format: text/tab-separated-values, 247016 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
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    Ultra-wideband radar data over the shear margins and along flow lines at the onset region of the Northeast Greenland Ice Stream (NEGIS) (2021)
    PANGAEA
    Details
    Publication Date: 2024-05-17
    Description: We present a high-resolution airborne radar data set (EGRIP-NOR-2018) for the onset region of the Northeast Greenland Ice Stream (NEGIS). The radar data has been acquired in May 2018 with the Alfred Wegener Institute (AWI) multichannel ultra-wideband radar mounted on the Polar6 aircraft. Radar profiles cover an area of ~24 000 km^2 and extend over the well-defined shear margins of the NEGIS. The survey area is centred at the location of the drill site of the East Greenland Ice-Core Project (EastGRIP) and several radar lines intersect at this location. The survey layout is designed to (1) map the stratigraphic signature of the shear margins with radar profiles aligned perpendicular to ice flow and (2) trace the radar stratigraphy along several flow lines. While we are able to resolve radar reflections in the deep stratigraphy, we cannot fully resolve the steeply inclined reflections at the tightly folded shear margins in the lower part of the ice column. The NEGIS is causing the most significant discrepancies between numerically modelled and observed ice surface velocities. Given the high likelihood of future climate and ocean warming, this extensive data set of new high-resolution radar data in combination with the EastGRIP ice core will be a key contribution to understanding the past and future dynamics of the NEGIS.
    Keywords: AWI UWB; Binary Object; EGRIP-NOR; EGRIP-NOR-18; File name; Ice dynamics; MULT; Multiple investigations; North East Greenland Ice Stream (NEGIS); P6-211_EGRIP_NOR_2018; POLAR 6; radio echo sounding; RES; shear margins
    Type: Dataset
    Format: text/tab-separated-values, 90 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
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    Ice thickness from the northern catchment region of Greenland's 79 North Glacier, recorded with the airborne AWI UWB radar system (2020)
    PANGAEA
    In:  Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven
    Details
    Publication Date: 2024-06-10
    Description: Ice thickness from the northern catchment region of Greenland's 79 North Glacier, recorded with the airborne AWI UWB radar system - AWI Flight Campaign: P6-211_RESURV79_2018 Region: North East Greenland Owner/PI: Daniela Jansen (AWI) - Email address of the provider: daniela.jansen@awi.de steven.franke@awi.de - Instrument used: AWI UWB (MCoRDS 5) Firn correction: none applied Velocity profile: dielectric constant of 3.15 ( c = 1.68914e8 m/s ) Ice Thickness uncertainty: is the RMS of the the sum of the crossover mean of 29intersections (= 11.2 m) and the error of the dielectric (1%). sqrt( (crossover_mean)^2 + ( (-ice_thickness/2) * 0.01 )^2 ) - Method of navigation : GPS data was acquired by four NovAtel DL-V3 GPS receivers operating at 20Hz - Level of focusing: focused SAR
    Keywords: AC; Aircraft; AWI UWB; DATE/TIME; Event label; Flight number; ice thickness; Ice thickness; Ice thickness, uncertainty; Ice Thickness Radar (EMR, MCoRDS); LATITUDE; LONGITUDE; North East Greenland; North Greenland Sea; Number; P6_211_RESURV79_2018_1804140601; P6_211_RESURV79_2018_1804150701; P6_211_RESURV79_2018_1804180901; P6_211_RESURV79_2018_1804231201; P6-211_RESURV79_2018; POINT DISTANCE from start; POLAR 6; Profile ID; radio-echo sounding; RESURV79, FINEGIS; Two-way traveltime
    Type: Dataset
    Format: text/tab-separated-values, 691971 data points
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    DATA PANGAEA
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