Geoscientific Instrumentation, Methods and Data Systems
Geoscientific Instrumentation, Methods and Data Systems
GI
Articles | Volume 6, issue 2
Articles | Volume 6, issue 2
https://doi.org/10.5194/gi-6-231-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/gi-6-231-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 6, issue 2
Research article
 | 
07 Jul 2017
Research article |  | 07 Jul 2017

Stability analysis of geomagnetic baseline data obtained at Cheongyang observatory in Korea

Shakirah M. Amran, Wan-Seop Kim, Heh Ree Cho, and Po Gyu Park

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Latest update: 05 Jun 2025
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Short summary
In this work, we analysed the Cheongyang geomagnetic baseline data from 2014 to 2016. We observed a step of more than 5 nT in the H and Z baseline in 2014 and 2015 due to artificial magnetic noise in the absolute hut. The baseline also shows a periodic modulation due to temperature variations in the fluxgate magnetometer hut. The quality of the baselines was improved by correcting the discontinuity in the H and Z baselines.
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Special issue
The Earth’s magnetic field: measurements, data, and applications...