Data

Magnetotelluric surveys for deep Earth investigations in East Antarctica (Level 3 ModEM)

National Computational Infrastructure
Manassero, Maria Constanza ; Selway, Kate ; Reading, Anya ; Askey-Doran, Niam ; Stål, Tobias
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=info:doi10.25914/cnna-0p16&rft.title=Magnetotelluric surveys for deep Earth investigations in East Antarctica (Level 3 ModEM)&rft.identifier=10.25914/cnna-0p16&rft.publisher=NCI Australia&rft.description=This dataset contains broadband magnetotelluric (MT) recordings from the East Antarctic Plateau, collected for deep Earth and Glacial Isostatic Adjustment (GIA) investigations. Recording durations range from 1 to 4 weeks per site using Phoenix MTU-5C instruments. Level 3 ModEM files are available. CreditWe express thanks for the support of the Australian Antarctic Division for the logistics of the Denman Terrestrial Campaign (DTC) and the whole DTC team for the massive efforts.This record was harvested by RDA at 2026-09-03T11:58:31.048857+10:00 from NCI's Data Catalogue where it was last modified at 2026-07.MT responses were derived from time series screened for source-field and wind noise using a time-frequency analysis (after Peacock et al., 2016), retaining only plane-wave-compliant windows. (Peacock, J. R., and K. Selway (2016), Magnetotelluric investigation of the Vestfold Hills and Rauer Group, East Antarctica, J. Geophys. Res. Solid Earth, 121, 2258–2273, doi:10.1002/2015JB012677). Impedances were computed in EMpower v2.2 with robust remote-reference processing, spanning 0.0016–6000 s; ModEM data files were created for the 0.05–6000 s range used for inversion using MATLAB.&rft.creator=Manassero, Maria Constanza &rft.creator=Selway, Kate &rft.creator=Reading, Anya &rft.creator=Askey-Doran, Niam &rft.creator=Stål, Tobias &rft.date=2026&rft.edition=v1&rft.coverage=northlimit=66.252; southlimit=67.90726; westlimit=100.47018; eastLimit=111.341114&rft.coverage=northlimit=66.252; southlimit=67.90726; westlimit=100.47018; eastLimit=111.341114&rft_rights= https://creativecommons.org/licenses/by/4.0/&rft_rights=Creative Commons Attribution 4.0 International&rft_rights=Suggested citation: Manassero, M.C., Selway, K., Reading, A., Askey-Doran, N., & Stål, T. (2026). Magnetotelluric surveys for deep Earth investigations in East Antarctica (Level 3 ModEM). NCI Australia [dataset]. https://doi.org/10.25914/cnna-0p16 Accessed on <date>. &rft_subject=geoscientificInformation&rft_subject=geophysics, magnetotellurics, MT, electrical resistivity, impedance, broadband, long period, Antarctic&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International

Suggested citation: Manassero, M.C., Selway, K., Reading, A., Askey-Doran, N., & Stål, T. (2026). Magnetotelluric surveys for deep Earth investigations in East Antarctica (Level 3 ModEM). NCI Australia [dataset]. https://doi.org/10.25914/cnna-0p16 Accessed on . 

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Brief description

This record was harvested by RDA at 2026-09-03T11:58:31.048857+10:00 from NCI's Data Catalogue where it was last modified at 2026-07.

Full description

This dataset contains broadband magnetotelluric (MT) recordings from the East Antarctic Plateau, collected for deep Earth and Glacial Isostatic Adjustment (GIA) investigations. Recording durations range from 1 to 4 weeks per site using Phoenix MTU-5C instruments. Level 3 ModEM files are available.

Credit

We express thanks for the support of the Australian Antarctic Division for the logistics of the Denman Terrestrial Campaign (DTC) and the whole DTC team for the massive efforts.

Lineage

MT responses were derived from time series screened for source-field and wind noise using a time-frequency analysis (after Peacock et al., 2016), retaining only plane-wave-compliant windows. (Peacock, J. R., and K. Selway (2016), Magnetotelluric investigation of the Vestfold Hills and Rauer Group, East Antarctica, J. Geophys. Res. Solid Earth, 121, 2258–2273, doi:10.1002/2015JB012677). Impedances were computed in EMpower v2.2 with robust remote-reference processing, spanning 0.0016–6000 s; ModEM data files were created for the 0.05–6000 s range used for inversion using MATLAB.

Created: 10 07 2026

Issued: 22 07 2026

Modified: 22 07 2026

Data time period: 2023-01-12 to 2025-02-12

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111.34111,66.252 111.34111,67.90726 100.47018,67.90726 100.47018,66.252 111.34111,66.252

105.905647,67.07963

text: northlimit=66.252; southlimit=67.90726; westlimit=100.47018; eastLimit=111.341114

Subjects
geophysics, magnetotellurics, MT, electrical resistivity, impedance, broadband, long period, Antarctic | geoscientificInformation |

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Identifiers
ACN 633 798 857