Fog-based automatic true north detection for absolute magnetic declination measurement
Absolute magnetic measurements are of great importance in magnetic observatories. They allow not only instrument calibration but also data quality checking. They require the vertical and the geographic or true north as reference directions, usually determined by means of a level and by pointing...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
Copernicus Publications
2017-10-01
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Series: | Geoscientific Instrumentation, Methods and Data Systems |
Online Access: | https://www.geosci-instrum-method-data-syst.net/6/439/2017/gi-6-439-2017.pdf |