AWI EMR radar data upstream of the northern catchment of the Nioghalvfjerdsbrae (79°North Glacier), Northeast Greenland

Here we present AWI EMR radio-echo sounding data in northeast Greenland upstream of the northern catchment of the Nioghalvfjerdsbrae (79°North Glacier; 79NG). The radar data were acquired with AWI's EMR radar system in 1998. The radar lines are located between the central ice divide and the Nor...

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Bibliographic Details
Main Authors: Franke, Steven, Steinhage, Daniel, Helm, Veit, Miller, Heinrich, Eisen, Olaf
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
AWI EMR
Binary Object
Binary Object (File Size)
Date/Time of event
Electromagnetic Reflection System
EMR
Event label
Greenland
Ice Sheet
Image
NOGRAM_1998
NOGRAM_1998_39
NOGRAM_1998_43
NOGRAM_1998_44
NOGRAM_1998_45
NOGRAM_1998_983518
NOGRAM_1998_983525
NOGRAM_1998_983526
NOGRAM_1998_983529
NOGRAM_1998_983531
POLAR 2
radio-echo sounding
RES
glacier
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.949619
https://doi.org/10.1594/PANGAEA.949619
Description
Summary:Here we present AWI EMR radio-echo sounding data in northeast Greenland upstream of the northern catchment of the Nioghalvfjerdsbrae (79°North Glacier; 79NG). The radar data were acquired with AWI's EMR radar system in 1998. The radar lines are located between the central ice divide and the Northeastern glacier outlet region. The radio-echo sounding data was used to decipher the regional ice-flow history of the northeastern Greenland Ice Sheet based on its internal stratigraphy by mapping folds deep below the surface that we then attribute to the deformation caused by now-extinct ice streams. Locally, this ancient ice flow regime was much more focused and reached much further inland than today's and was deactivated when the main drainage system was reconfigured and relocated southwards.

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