Measurements of vector magnetic anomalies on board the icebreaker Shirase and the magnetization of the ship

Vector measurements of the geomagnetic field have been made in the South Indian Ocean since 1988 when a Shipboard Three Component Magnetometer (STCM) was installed on board the icebreaker Shirase by the 30th Japanese Antarctic Research Expedition (JARE-30). Twelve constants related to the ship'...

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Bibliographic Details
Published in:Annals of Geophysics
Main Authors: K. Kaminuma, Y. Nogi
Format: Article in Journal/Newspaper
Language:English
Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 1999
Subjects:
shipboard three component magnetometer
vector measurements of the geomagnetic field
ship's permanent magnetization
ship's induced magnetic field
Meteorology. Climatology
QC851-999
Geophysics. Cosmic physics
QC801-809
Antarctic
Indian
Antarc*
Icebreaker
Online Access:https://doi.org/10.4401/ag-3711
https://doaj.org/article/29d98728c5df4b2f97e3db530d793daf
Description
Summary:Vector measurements of the geomagnetic field have been made in the South Indian Ocean since 1988 when a Shipboard Three Component Magnetometer (STCM) was installed on board the icebreaker Shirase by the 30th Japanese Antarctic Research Expedition (JARE-30). Twelve constants related to the ship's induced and permanent magnetic field were determined by the data obtained from the JARE-30 to the JARE-35. The constants related to the ship's magnetic susceptibility distribution are almost stable throughout the cruise and mostly depend on the ship's shape. On the other hand, the constants related to the ship's permanent magnetization are variable. However, absolute values of total intensity geomagnetic field calculated from vector geomagnetic field is possible to use, if the constraints from total intensity geomagnetic field measured by the proton magnetometer and/or satellite derived magnetic anomalies are applied.

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