- "Magnetics" (as used within the
CMG InfoBank )
refers to the magnetic field of a body of rock.
- Local differences from the surrounding rocks are usually the primary concern.
- These anomalies when used with other geophysical information (such as
gravity)
indicate different types of rocks and magnetic reversals.
- "Gradiometer" information is generated by a pair of magnetometers.
- Magnetics information occurs in the
InfoBank
as:
scattered
|
< Activity-ID >.2##
files containing time sequential information along ship tracks.
|
metadata
|
information about magnetic analog paper rolls, inventory of gear, deployment of gear,
operation of gear, magnetic tapes, and paper printer listings
|
- InfoBank magnetic data file names:
- InfoBank magnetic metadata file names:
- The
<Activity-ID>.2## files do not include navigation.
- Navigation must be obtained from
<Activity-ID>.0## or
<Activity-ID>.6## files.
- Navigation should therefore also be extracted when you retrieve these files.
- A "time"
key is associated with each record for correlation with other scattered information datasets.
"Don't under-estimate the power of the Force."
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