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There are a variety of mapping products available based on the spatial variations of lightning strikes. Vaisala's database goes back to 1999 and contains key attributes from hundreds of millions of lightning strikes. Again, DML normalizes, cleans, and data mines this database to create derivative data and maps, including data location maps (control points), contour maps, and fault lineament interpretation maps of:
- EM1, a variation of principle component analysis combining the major axis of Rise Time, Peak Current, and Peak-to-Zero measurements.
- fault lineament interpretations
- EM2, a variation of principle component analysis combining the minor axis of Rise Time, Peak Current, and Peak-to-Zero measurements.
- RT, Rise Time.
- PC,Peak Current.
- P2Z, Peak-to-Zero time.
- TWT, Total Wavelet Time.
- WS, Wavelet Symmetry.
- T, Topography.
- MLLHT, Moon Local Longitude High Tide.
- various merged map displays, including High Tide lightning strikes over topography or topography over High Tide lightning strikes.
DML packages the derivative data, makes maps, interprets faults, and prepares a report sumarizing the results for the study area. This report is updated annually with new lighting strike data, new techniques learned doing other projects, and suggestions as to other data to integrate with the sublicensed lightning data.
Integration with potential field data (gravity, magnetics, magnetotelluric, or electric), outcrop data, well log data, seismic, production data, temperature, pressure, soil moisture, vegetation, and other types of data is available as described above in Part 5 of the DML Project Work Flow.
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