PANGAEA_996962
GEM-2 raw electromagnetic measurements of the ice floe transects during the PS149 CONTRASTS expedition at station PS149_46-1-gem2-730-iup-01
Ringel, Maximilian Harald; Spreen, Gunnar; Krumpen, Thomas; Neudert, Mara
GEM-2 raw electromagnetic measurements of the ice floe transects during the PS149 CONTRASTS expedition at station PS149_46-1-gem2-730-iup-01
2026-09-02
PANGAEA
Dataset
https://doi.pangaea.de/10.1594/PANGAEA.996962
Investigator
Maximilian Harald
Ringel
mringel@uni-bremen.de
Earth Science
DATE/TIME
LATITUDE
LONGITUDE
Line ID
Record number
Marker
Status
Quality flag, position
ALTITUDE
Magnetic field, power-line frequency
In-phase component
Quadrature component
Quadrature component, sum
Conductivity, apparent
Magnetic susceptibility, volume
geoscientificInformation
Arctic
Broadband electromagnetic sensor
CONTRASTS expedition
electromagnetic induction
Files 121-124
GEM-2
Geophex
ocean
PS149
PS149_46-1-gem2-730-iup-01
RV Polarstern
Sea ice
Sea ice thickness
Transects
Ground-based Electromagnetic Induction Sounding Device, GEM-2, Geophex Ltd
Polarstern
2025-08-24
2025-08-24
Complete
84.17406
84.179245
17.73165
17.81376333
0.1 m (ALTITUDE)
13.38 m (ALTITUDE)
AC3
Arctic Amplification
unrestricted
CC-BY-4.0: Creative Commons Attribution 4.0 International
English
PANGAEA
Data Publisher for Earth & Environmental Science
https://www.pangaea.de/
Data Center Contact
Michael
Diepenbroek
info@pangaea.de
Leobener Str.
Bremen
Bremen
28359
Germany
online
435232 data points
text/tab-separated-values
Nicolaus, Marcel (2026): The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 808, 382 pp, https://doi.org/10.57738/BZPM_0808_2026
General instrument specifications for GEM-2-730 in yaml format. https://download.pangaea.de/reference/141272/attachments/gem2-730-seaice-default.yaml
PS149_46-1_floe2d_20250824_GEM730_LongTransect metadata in yaml format. https://download.pangaea.de/reference/141380/attachments/PS149_46-1_floe2d_20250824_GEM730_LongTransect.yaml
Calibration data and metadata for PS149_46-1_floe2d_20250824_GEM730. https://download.pangaea.de/reference/141391/attachments/PS149_46-1_floe2d_20250824_GEM730_Calibration.zip
This dataset contains the raw electromagnetic induction (EM) measurements from a walk with the GEM instrument on a sledge across the ice floe (called long transect) conducted during the PS149 CONTRASTS expedition. The measurements were acquired using the Geophex Ltd. GEM-2-730 broadband EM sensor. During each ice station of the expedition (i.e., floe visit), a long transect was traversed across the ice floe to obtain statistically representative distributions of snow/pond depth and ice thickness. Each transect was marked with flags at its corner points to ensure that a similar track was measured during repeated visits to each ice floe. This dataset provides only the raw GEM measurements acquired along the transect for the indicated ice station (see title), including in-phase and quadrature responses, as well as electrical conductivity and magnetic susceptibility of sea ice and snow / melt ponds. These raw data enable users to apply various processing methods to, e.g., derive sea ice thickness. The measurements conducted during the other ice stations as well as further technical details about the data can be found in the collection: https://doi.pangaea.de/10.1594/PANGAEA.996869. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.996962"!
http://en.wikipedia.org/wiki/Altitude
ALTITUDE
http://en.wikipedia.org/wiki/ISO_6709
LATITUDE
http://en.wikipedia.org/wiki/ISO_6709
LONGITUDE
http://en.wikipedia.org/wiki/ISO_8601
DATE/TIME
https://doi.org/10.17815/jlsrf-3-163
Polarstern
https://doi.org/10.57738/BZPM_0808_2026
The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025
https://en.wikipedia.org/wiki/Magnetic_susceptibility
Magnetic susceptibility, volume
https://gepris.dfg.de/project/268020496
AC3
PANGAEA_996869
DIF
9.4
2026-09-02
2026-09-02