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Coastal & Marine Geology InfoBank

USGS CMG InfoBank format for Raw gradiometer data

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File Name /infobank/<letter>/<activityid>/mag/<activity-id>.240
Style time/data style, multi-record, in caps, without tabs
Mnemonic
(Year, Day, Hour, Min, Sec, Tenths, MstObs, SlvObs)
Fortran format
(i4.4, i3.3, 3i2.2, i1.1, t16, f7.1, t24, f7.1)
C format
(%4.4i%3.3i3%2.2i%1.1i %7.1f %7.1f\\n)
Purpose temporal data
Derivative data acquisition systems
Comment to calculate regional and residual fields. first input file for /infobank/programs/mag/magred

Example
         1         2         3 
1234567890123456789012345678901
    
19871810917400 49297.0 49301.0
19871810918000 49298.0 49299.0
19871810918200 49294.0 49302.0
19871810918400 49297.0 49298.0
19871810919000 49295.0 49300.0
      

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