NZ Large Scale Seismic Experiments (onshore and offshore)
This dataset includes navigation, observer logs, raw and processed seismic data (generally SEGY or Miniseed). The data are often linked to science reports, consultancy reports, voyage reports, and published papers.
These experiments often have several phases of data collection extending over several years. They involve a range of partner institutes including New Zealand and international university teams. The equipment deployed can be quite heterogeneous as teams contribute their own gear.
Each phase is usually anchored by a single large set of equipment (e.g. IRIS PASSCAL Texans).
Offshore components involve research cruises with overlaps to the NZ Research Seismic Dataset, and OBS deployments that overlap with the NZ Sonobuoy and OBS Dataset. These datasets are managed in accordance with the relevant DMPs.
Spatially, the dataset includes experiments onshore in Aotearoa New Zealand and offshore in Te Riu a Māui / Zealandia.
Experiments include 2D transects, and 3D and multi-azimuth experiments.
These projects on occasion include other data types (e.g. multibeam bathymetry, gravity, magnetotelluric). These are noted in the report for the respective large scale experiment but managed separately in accordance with the appropriate DMPs.
Simple
- Date (Creation)
- 2021-05-06
- Purpose
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This dataset collects all seismic data from surveys collected by research organisations as part of large multi-institute experiments. These can involve a range of sources (active and passive) and record ambient noise. They usually have both onshore and offshore components and contain multiple datasets.
- Status
- On going
- Point of contact
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Organisation name Individual name Electronic mail address Role GNS Science
Point of contact
- Maintenance and update frequency
- As needed
- Keywords
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seismic
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- Classification
- Restricted
- Use limitation
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Most data are publicly available under Creative Commons (CC-BY). Where data has been collected by an external agency, we ask potential users from outside of GNS to source the data directly.
GNS funded data are usually kept under moratorium for the first two years after data collection to allow time for publications. During this time, metadata is made available. This can be extended to three years or longer on a case by case basis.
Creative Commons Attribution-ShareAlike 4.0 International License ( https://creativecommons.org/licenses/by-sa/4.0/ )
- Spatial representation type
- Vector
- Language
- English
- Topic category
-
- Geoscientific information
- Oceans
))
- Begin date
- 2021-05-08
Extent
- Hierarchy level
- Dataset
- Statement
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• The types of data collected during these experiments includes continuous time series from temporary stations, receiver gathers from discrete shots, shot gathers for sub arrays of the data.
• Processing steps vary with the type of instrument, the type of source, the institute managing the acquisition and processing.
• GPS surveying is done at the time of acquisition either by deployment teams (handheld GPS), recorded by the instrument, or by marine surveying.
• Each data type is usually collated by a single group and saved in appropriate formats (SEGY, Miniseed).
• On completion of acquisition, data are archived in the Digital Scientific Data Media Archive
• Research groups have been contracted to process certain datasets to ensure all of the data are appraised and processed to the appropriate level.
• The datasets are enduring and many groups return to the raw data to undertake additional processing and analysis.
• Data quality is variable due to different acquisition systems, level of processing and other factors. The metadata holds information regarding acquisition parameters.
Metadata
- File identifier
- f59f8c7b-a5d5-4466-b6f7-419ab929590b XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Hierarchy level name
-
Dataset
- Date stamp
- 2024-06-20T01:52:15.936329Z
- Metadata standard name
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ISO 19115:2003/19139
- Metadata standard version
-
1.0
- Metadata author
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Organisation name Individual name Electronic mail address Role GNS Science
Point of contact
