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Earth, Planets and Space
Figure 4 | Earth, Planets and Space

Figure 4

From: A new leveling method without the direct use of crossover data and its application in marine magnetic surveys: weighted spatial averaging and temporal filtering

Figure 4

Track lines of the 1968 National Oceanic and Atmospheric Administration (NOAA) surveys of Norton Sound. A detailed survey with track line spacings of 1 to 2 miles was carried out by the Surveyor NORTSD68 cruise (red) and Oceanographer OPR483 cruise (blue). Each numeral shows the first location of the corresponding day of year. The red star indicates the location of the Cape Wellen Observatory (CWE) in Russia. Simultaneously collected color-coded bathymetric data show that this is a shallow continental shelf area with water depths of less than 50 m.

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