Another magnetic anomaly, also in the form of a dipole, visible in the line of data on Lane 30.
Dipole
Image courtesy of the Search for the Lost French Fleet of 1565 Expedition, NOAA-OER/St. Augustine Lighthouse & Museum. Download larger version (jpg, 418 KB).

Another magnetic anomaly, also in the form of a dipole, visible in the line of data on Lane 30. The background noise in this lane is much more pronounced and erratic, so we don’t have the nice, quiet flat line as seen in the previous survey lane. This can be due to the direction of the boat in a particular sea state. But the magnetic hit is still very visible.

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