An automatic DI-flux at the Livingston Island geomagnetic observatory, Antarctica: requirements and lessons learned

An automatic DI-flux at the Livingston Island geomagnetic observatory, Antarctica: requirements and lessons learned

The DI-flux, consisting of a fluxgate magnetometer coupled with a theodolite, is used for the absolute manual measurement of the magnetic field angles in most ground-based observatories worldwide. Commercial solutions for an automated DI-flux have recently been developed by the Royal Meteorological...

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Bibliographic Details
Published in:Geoscientific instrumentation, methods and data systems Vol. 6; no. 2; pp. 269 - 277
Main Authors: Marsal, Santiago, Curto, Juan José, Torta, Joan Miquel, Gonsette, Alexandre, Favà, Vicent, Rasson, Jean, Ibañez, Miquel, Cid, Òscar
Format: Journal Article
Language:English
Published: Gottingen Copernicus GmbH 18-07-2017
Copernicus Publications
Subjects:
Automation
Energy efficiency
Fluctuations
Fluxgate magnetometers
Geomagnetic fields
Geomagnetism
Ground-based observation
Housing
Infrastructure
Instruments
Lasers
Magnetic field
Magnetic fields
Magnetometers
Observations
Observatories
Polar environments
Power management
Solutions
Antarctica
Livingston Island
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Summary:The DI-flux, consisting of a fluxgate magnetometer coupled with a theodolite, is used for the absolute manual measurement of the magnetic field angles in most ground-based observatories worldwide. Commercial solutions for an automated DI-flux have recently been developed by the Royal Meteorological Institute of Belgium (RMI), and are practically restricted to the AutoDIF and its variant, the GyroDIF. In this article, we analyze the pros and cons of both instruments in terms of its suitability for installation at the partially manned geomagnetic observatory of Livingston Island (LIV), Antarctica. We conclude that the GyroDIF, even if it is less accurate and more power demanding, is more suitable than the AutoDIF for harsh conditions due to the simpler infrastructure that is necessary. Power constraints in the Spanish Antarctic Station Juan Carlos I (ASJI) during the unmanned season require an energy-efficient design of the thermally regulated box housing the instrument as well as thorough power management. Our experiences can benefit the geomagnetic community, which often faces similar challenges.
ISSN:2193-0864
2193-0856
2193-0864
DOI:10.5194/gi-6-269-2017