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Apia (API) paper magnetograms

The dataset is composed of the original sheets on which the fields were recorded by light on photographic paper. Each magnetogram sheet holds a record of 24 hours. Normally the magnetic field components H and D are recorded; some years in addition do have recordings of the Z component.


Apia (API) 1907 – 1913

Apia (API) 1932 – 1955


There are magnetograms for 1956 - 1994, but they are not complete and the contents need yet to be specified.


For 1907 - 1913, magnetograms for H and D are mostly complete. The years 1908 - 1911 have some additional magnetograms that might be for the Z component.


GNS Science does not hold records from 1914 to 1931. After the long gap, there are fewer magnetograms for 1932 - 1936; from 1937 - 1955, each year has magnetograms for H, D & Z for most days.


There are Apia rapid runs available for 1956 - 1978, and 1983-1986, and Apia Wider Range (WR) from 1977, 1979, 1980, 1983, 1985, 1986.


Some of the records were received from the University of Göttingen, Germany, who originally established this magnetic station.


DOI: https://doi.org/10.21420/WYV2-6K33?x=y


Cite as:

GNS Science. (2022). Apia (API) paper magnetograms . GNS Science. https://doi.org/10.21420/WYV2-6K33?x=y

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
Point of contact
Organisation name Individual name Electronic mail address Role

GNS Science

geomag@gns.cri.nz

Point of contact
Maintenance and update frequency
Not planned
Keywords
  • Geomagnetism

  • Magnetic fields

  • Magnetic anomalies

  • Apia Observatory

  • New Zealand

  • Samoa

  • Magnetic recording

  • Temporal variation

  • Germany

  • Apia

  • Paper records

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
Language
English
Topic category
  • Geoscientific information
N
S
E
W
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Begin date
1902-01-01
Distribution format
Name Version

paper

Distributor contact
Organisation name Individual name Electronic mail address Role

GNS Science

datamanagement@gns.cri.nz

Point of contact
OnLine resource
Protocol Linkage Name

WWW:LINK-1.0-http--link

https://www.gns.cri.nz/Home/Our-Science/Land-and-Marine-Geoscience/Earth-s-Magnetic-Field/New-Zealand-Geomagnetic-Database

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.

Metadata

File identifier
3b7f96fd-453c-4bb5-9944-57147f644002 XML
Metadata language
English
Character set
UTF8
Parent identifier

42b18b1a-caf1-4ae1-8b0a-d3e3feb87c5b

Hierarchy level
Dataset
Hierarchy level name

Dataset

Date stamp
2024-06-26T01:29:08.942802Z
Metadata standard name

ISO 19115:2003/19139

Metadata standard version

1.0

Metadata author
Organisation name Individual name Electronic mail address Role

GNS Science

datamanagement@gns.cri.nz

Point of contact
 
 

Overviews

overview
Absolute magnetic hut located in Christchurch Botanical Gardens circa 1910-1926

Spatial extent

N
S
E
W
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Keywords


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