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- W3135492015 abstract "<p>Since the 70&#8217;s, ship-mounted three-component magnetometers are used for marine geophysical mapping, with the benefits of being able to be operated permanently with a minimum of technical maintenance. However, to obtain accuracies similar to those of ship-towed absolute scalar magnetometers, the intense interfering magnetic fields generated by the hull and steel parts of the ship have to be removed. The most common correction method, called &#8220;vector compensation&#8221;, uses high precision inertial navigation systems in order to correct the measured data for the ship&#8217;s magnetic field and calculate the vector of the compensated magnetic field in the Earth coordinated system.</p><p>This work alternatively uses the &#8220;scalar compensation&#8221; method applied in airborne magnetism since the 60&#8217;s. The aim is to compute the intensity of the compensated magnetic field without measurements of the attitude of the vector and using linear least-square regression analysis. This correction method is applied to shipboard three-component magnetometer data acquired on different vessels during different surveys. Results are compared to those obtained with ship-towed absolute scalar magnetic measurements.</p><p><strong>Keywords</strong>: shipboard three-component magnetic measurements; magnetic compensation; marine magnetics.</p>" @default.
- W3135492015 created "2021-03-15" @default.
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- W3135492015 date "2021-03-04" @default.
- W3135492015 modified "2023-09-26" @default.
- W3135492015 title "Scalar compensation of shipboard three-component magnetic measurements and applications for marine geophysical mapping" @default.
- W3135492015 doi "https://doi.org/10.5194/egusphere-egu21-5326" @default.
- W3135492015 hasPublicationYear "2021" @default.
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