Raw and processed radio-echo sounding data for Moarhmmáglaciären, northern Sweden
Zhuo Wang, Neil Ross, Nina Kirchner
This dataset contains the raw and processed radio-echo sounding (RES) data collected on 2024-04-02 on Moarhmmáglaciären, Northern Sweden. The data can be used to derive estimates of the ice thickness.
RES surveys were conducted at high spatial density, covering most of the glacier surface. The total length of the RES survey profiles is 43.6 km.
Moarhmmáglaciären (Swedish name: Mårmaglaciären; name in WGMS: Marmaglaciaeren) is one of Sweden’s four so-called reference glaciers (glaciers for which more than 30 years of continuous measurements are available) included in the World Glacier Monitoring Service (WGMS) database.
TerrestrialGlaciersRadio-echo soundingMoarhmmáglaciärenReference glaciersTarfalaArcticAlpine
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Citation
References
Wang Z, Ross N, Frank T, Barnett J, Santin I, Houssais M, Dahlkvist J, Kirchner N (in review) Ice thickness and subglacial topography of Swedish reference glaciers revealed by radio-echo sounding.
Mingo L, Flowers GE (2010) An integrated lightweight ice-penetrating radar system. Journal of Glaciology 56:709–714. https://doi.org/10.3189/002214310793146179
Wang Z, Ross N, Frank T, Barnett J, Santin I, Houssais M, Dahlkvist J, Kirchner N (2026) Ice thickness and bed topography for Moarhmmáglaciären, northern Sweden. Dataset version 3. Bolin Centre Database. https://doi.org/10.17043/tarfala-marma-res-3
Data description
The data are provided in two folders. Total size: 220 MiB.
Original_data
Two Hierarchical Data Format (HDF5) files, each representing a RES profile. The files include system parameters, data acquisition parameters, geolocations infomation, and raw RES data.
APRIL2FILE1N.HDF5Data collection starting at 2024-04-02T10:47:08ZAPR022414H4605.HDF5Data file created at 2024-04-02T12:46:05Z
Processed_data
Two SEG-Y (SGY) files, each representing a processed RES profile corresponding to the raw RES data in the folder Original_data.
The data were processed using the ReflexW module for 2-D data analysis (Sandmeier Scientific Software, version 10.5).
The data processing flow, designed to enhance bed reflections, comprises dewow, time-zero correction, dynamic correction, signal divergence compensation, 2-D filtering, Butterworth bandpass filtering, and Kirchhoff migration.
APRIL2FILE1N_processed.SGYProcessed data corresponding toAPRIL2FILE1N.HDF5APR022414H4605_processed.SGYProcessed data corresponding toAPR022414H4605.HDF5
Comments
Data collection
The data was collected by Blue System Integration ice penetrating radar (v3), towed behind a snowmobile (Mingo and Flowers, 2010). RES data were collected in an in-line antenna configuration, with antenna separation of 15 m, operating at a central wavelength of 16.8 m and a receiver sampling rate of 125 MHz.
The snowmobile was driven at a speed of 4–6 m/s. The RES signals were stacked 512 times during acquisition, resulting in a trace spacing of 4–6 m. The survey-line spacing along ice flow and across the ice flow direction are 90–200 and 70–280 m, respectively. The survey trajectory was tracked by the GPS receiver integrated into the RES system.
Related publication
The dataset is used and described by Wang et al. (in review).
Related data
The ice thickness and bed topography for Moarhmmáglaciären derived from this dataset are provided in a dataset by Wang et al. (2026).
Version history
Version 2
The dataset has been reprocessed with additional steps, including dynamic correction and Kirchhoff migration.
Version 1
The dataset was processed using a workflow including dewow, time-zero correction, signal divergence compensation, 2-D filtering, and Butterworth bandpass filtering.
Publisher
Bolin Centre Database
License
Open Data Commons Attribution License (ODC-By) v1.0
First name
Zhuo
Last name or organisation
Wang
Email address
Address
Tarfala Research Station; Stockholm University
Postal code
SE-106 91
City
Stockholm
Country
Sweden
GCMD science keyword
Earth science > Cryosphere > Glaciers/ice sheets
GCMD location
Continent > Europe > Northern Europe > Scandinavia > Sweden
Dataset language
English
Begin date
2024-04-02
End date
2024-04-02