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Sebastian Hellmann
Sebastian Hellmann
Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zurich
Verified email at ethz.ch
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Cited by
Cited by
Year
Ice thickness distribution of all Swiss glaciers based on extended ground-penetrating radar data and glaciological modeling
M Grab, E Mattea, A Bauder, M Huss, L Rabenstein, E Hodel, A Linsbauer, ...
Journal of Glaciology 67 (266), 1074-1092, 2021
372021
Ice volume estimates of Swiss glaciers using helicopter-borne GPR—An example from the Glacier de la Plaine Morte
M Grab, A Bauder, F Ammann, L Langhammer, S Hellmann, GJ Church, ...
2018 17th International Conference on Ground Penetrating Radar (GPR), 1-4, 2018
252018
Assessing the influence of water constituents on the radiative heating of Laptev Sea shelf waters
MA Soppa, V Pefanis, S Hellmann, SN Losa, J Hölemann, F Martynov, ...
Frontiers in Marine Science 6, 221, 2019
222019
High-resolution helicopter-borne ground penetrating radar survey to determine glacier base topography and the outlook of a proglacial lake
GJ Church, A Bauder, M Grab, S Hellmann, H Maurer
2018 17th International Conference on Ground Penetrating Radar (GPR), 1-4, 2018
182018
Underway spectrophotometry in the Fram Strait (European Arctic Ocean): a highly resolved chlorophyll a data source for complementing satellite ocean color
Y Liu, R Röttgers, M Ramírez-Pérez, T Dinter, F Steinmetz, EM Nöthig, ...
Optics express 26 (14), A678-A696, 2018
172018
Acoustic velocity measurements for detecting the crystal orientation fabrics of a temperate ice core
S Hellmann, M Grab, J Kerch, H Löwe, A Bauder, I Weikusat, H Maurer
The Cryosphere 15 (7), 3507-3521, 2021
152021
Crystallographic analysis of temperate ice on Rhonegletscher, Swiss Alps
S Hellmann, J Kerch, I Weikusat, A Bauder, M Grab, G Jouvet, ...
The Cryosphere 15 (2), 677-694, 2021
112021
Diurnal expansion and contraction of englacial fracture networks revealed by seismic shear wave splitting
W Gajek, D Gräff, S Hellmann, AW Rempel, F Walter
Communications Earth & Environment 2 (1), 1-8, 2021
52021
Crystal c-axes measurements (Fabric Analyser G50) of ice core samples collected from the temperate Alpine ice core Rhone_2017
S Hellmann, J Kerch, J Eichler, D Jansen, I Weikusat, M Schwikowski, ...
PANGAEA-Data Publisher for Earth & Environmental Science, 2018
22018
Fluid pressure monitoring during hydraulic testing in faulted Opalinus Clay using seismic velocity observations
M Grab, AP Rinaldi, QC Wenning, S Hellmann, C Roques, AC Obermann, ...
Geophysics 87 (4), 1-41, 2022
12022
A borehole trajectory inversion scheme to adjust the measurement geometry for 3D travel time tomography on glaciers-video supplement
S Hellmann
12022
Field and synthetic data for a combined 3D velocity and borehole trajectory inversion algorithm
S Hellmann
12022
Acoustic ultrasound measurements on ice core samples from Rhonegletscher
S Hellmann
ETH Zurich, 2020
12020
Enhancing crosshole GPR data by analysing travel time differences of reciprocal tomographic measurements
S Hellmann, P Giertzuch, M Grab, A Bauder, H Maurer
24th European Meeting of Environmental and Engineering Geophysics 2018 (1), 1-5, 2018
12018
A borehole trajectory inversion scheme to adjust the measurement geometry for 3D travel time tomography on glaciers
S Hellmann, M Grab, C Patzer, A Bauder, H Maurer
EGUsphere, 1-29, 2022
2022
Comprehensive characterisation of a temperate Alpine glaciers internal ice structure with geophysical methods
S Hellmann
ETH Zurich, 2022
2022
Ultrasonic velocity experiments on ice cores to complement fabric measurements
S Hellmann, J Kerch, M Grab, H Löwe, A Bauder, I Weikusat, H Maurer
EGU General Assembly Conference Abstracts, EGU21-6100, 2021
2021
Active seismic monitoring of CO2-saturated brine injection into a fault (CS-D experiment in the Mont Terri Rock Laboratory)
M Grab, A Zappone, AP Rinaldi, S Hellmann, Q Wenning, C Roques, ...
EGU General Assembly Conference Abstracts, 21588, 2020
2020
Comparison of seismic velocities derived from crystal orientation fabrics and ultrasonic measurements on an ice core
S Hellmann, J Kerch, M Grab, H Löwe, I Weikusat, A Bauder, H Maurer
EGU General Assembly Conference Abstracts, 7087, 2020
2020
EastGRIP ice down to 2121m-fabric and microstructure
N Stoll, I Weikusat, J Kerch, I Kleitz, J Eichler, W Shigeyama, T Homma, ...
2019
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