Magnetotellurics data
Magnetotellurics data are used to determine the subsurface electrical resistivity structure and image in 3-D the distribution of conductive regions within the Earth associated with e.g. geothermal fluids, magma, and shear zones beneath faults.
Data have been collected across New Zealand (North and South islands), with large arrays measured the Taupo Volcanic Zone, Hikurangi Margin.
DOI:
https://doi.org/10.21420/0ky8-mx13?x=y
Cite as:
GNS Science. (2021). Magnetotellurics [Data set]. GNS Science. https://doi.org/10.21420/0KY8-MX13?x=y
Simple
- Date (Creation)
- 2000-01-11
- Status
- On going
- Point of contact
-
Organisation name Individual name Electronic mail address Role GNS Science
Point of contact
- Maintenance and update frequency
- As needed
- Keywords
-
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electromagnetics
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geophysics
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resistivity
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conductivity
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- Classification
- Restricted
- Other constraints
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Data are not publicly available for download due to privacy act issues. However, MT data can be shared via data sharing agreements. Please contact us for a data request.
- Aggregate Datasetindentifier
- 1cc69bfd-4b7c-4589-b23e-dbd54590f7b6
- Association Type
- Cross reference
- Initiative Type
- Investigation
- Language
- English
- Topic category
-
- Geoscientific information
- Location
))
- Begin date
- 2000-01-11
- Distribution format
-
Name Version raw data in instrument manufacturer binary format
- Hierarchy level
- Dataset
- Statement
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In summary the time series data is processed into MT data period (or frequency) dependent spectral cross powers, impedances and vertical magnetic field transfer functions formatted as standard EDI files using instrument manufacturer software. Subsequent is analysis and inversion modelling of the processed MT data.
MT time series data quality is mainly determined by the nature of the electromagnetic noise and strength of the natural field fluctuations at the time of measurement. Data quality can only be assessed by expert analysis after data processing. If any layout errors or factors that may affect data quality are observed during installation, these are recorded on the operator fieldsheets that accompany the raw data.
Metadata
- File identifier
- be0156cb-9f2e-48e3-b9c5-044b49160883 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
Dataset
- Date stamp
- 2024-06-25T23:57:48.090329Z
- Metadata standard name
-
ISO 19115:2003/19139
- Metadata standard version
-
1.0
- Metadata author
-
Organisation name Individual name Electronic mail address Role GNS Science
Point of contact
