GeoData.NZ
Paper magnetograms
This database documents fluctuations in the Earth's regional (New Zealand) magnetic field measured before the age of digital records.
New Zealand operates magnetic observatories in Canterbury (the Eyrewell Geomagnetic Observatory located at West Melton) and Scott Base in Antarctica, and supports the Apia observatory in Samoa. Observatories in the present days provide a record of temporal changes of the magnetic field, recording the three components of the magnetic field every second.
Eyrewell (EYR), Scott Base (SBA) and Apia (API) geomagnetic observatories.
Simple
- Date (Creation)
- 1901-11-01
- Purpose
-
GNS Science measures and monitors the magnetic field primarily as a contribution to the world scientific community but also to provide reference information for various kinds of magnetic surveys.
Observatories in New Zealand and Samoa provide the only continuous data from about a 90° arc of the Southern Hemisphere, one eighth of the globe.
GNS Science possesses a continuous reference series of geomagnetic measurements back to 1901 thereby enabling the identification of long term changes in Earth's magnetic field.
- Status
- Historical archive
- Maintenance and update frequency
- Not planned
- Keywords
-
- Geomagnetism
- Magnetic fields
- Magnetic anomalies
- Amberley Observatory
- Apia Observatory
- Eyrewell Magnetic Observatory
- New Zealand
- Samoa
- Scott Base
- Antarctica
- Magnetic recording
- Christchurch Magnetic Observatory
- Temporal variation
- Use constraints
- Copyright
- Other constraints
- GNS Science has made all reasonable endeavours to ensure the accuracy and completeness of the datasets but gives no warranties and makes no representations (express or implied) as to its accuracy, completeness or fitness for purpose, or title. GNS Science accepts no liability on account of errors in any of the information and each user must rely on its own inquiries. GNS Science excludes liability for any loss, damage or expense, direct or indirect and however caused, whether through negligence or otherwise resulting from any person, company or organisation's use of, or reliance on, these data. In no circumstances will GNS Science be liable for consequential, indirect, special or punitive damages. Use of the product will be deemed to be acceptance of these terms.
- Classification
- Unclassified
- Metadata language
- English
- Topic category
-
- Geoscientific information
))
- Begin date
- 1902-01-01
- Distribution format
-
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tiff
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csv
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)
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tiff
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- OnLine resource
-
New Zealand Geomagnetic Database
(
WWW:LINK-1.0-http--link
)
For more details go to the GNS Science website for the New Zealand Geomagnetic Database.
- Hierarchy level
- Dataset
- Statement
-
There was a succession of 3 observatories in or near Christchurch: the first was established in the Botanic Gardens (1901-1958; paper records), the second at Amberley (1916-1977; paper records), and the third at Eyrewell (1978-1995; paper records). In 1994 digital equipment was installed at Eyrewell allowing it to become an INTERMAGNET observatory.
Magnetic measurements began at Scott Base for the International Geophysical Year in 1957. GNS has paper records from 1957-1994. Scott Base became an INTERMAGNET observatory in 1996.
Magnetic measurements in Apia began in 1902. GNS has paper records from 1907-1994. In 1998 the installation of a digital system allowed Apia to become an INTERMAGNET observatory.
Real-time data is now sent to INTERMAGNET Geomagnetic Information Nodes within 72 hours of recording.
- File identifier
- 42b18b1a-caf1-4ae1-8b0a-d3e3feb87c5b XML
- Metadata language
- English
- Character set
- UTF8
- Parent identifier
- New Zealand Geomagnetic Database 56c42b24-b93d-46d1-8e7a-4e0a1051881f
- Hierarchy level
- Dataset
- Hierarchy level name
- Dataset
- Date stamp
- 2022-06-23T10:54:35
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
+64 4 570 4600
http://data.gns.cri.nz/metadata
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