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Authors: Damaske, D.*
Title: Merging aeromagnetic data collected at different levels: the GEOMAUD survey
Issue Date: Apr-1999
Series/Report no.: 42/2
Keywords: Queen Maud Land
magnetic anomaly maps
Abstract: As part of the German GEOMAUD-expedition an aeromagnetic survey was carried out in Central Queen Maud Land. The helicopter-borne survey was designed in a conventional form of a regional survey with a spacing of profile-lines of 4.4 km. Due to terrain considerations - surveying from the coast across the mountain ranges to the high altitudes of the polar plateau - the survey was split into two sections flown at different constant levels. Over the coastal part survey elevation was 570 m (above sea level) while for the mountain section 2845 m was chosen. Both survey parts were processed separately. The low level section was upward continued before merging with the high level section. Though this leads to a homogeneous magnetic anomaly map, in some applications it may be more advantageous to present the anomalies of the magnetic field in original survey levels as a simple combined map because small scale features are preserved and can be used in recognizing magnetic units and patterns for geological/geophysical interpretation.
Appears in Collections:04.05.99. General or miscellaneous
Annals of Geophysics

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