L06-page14 - Both rapid and long term changes Small...

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14 Data Processing • Required to remove ‘noise’ and other errors in data, and correct for other survey parameters. • Can be broken into ‘corrections’ and ‘data enhancements’ Diurnal Correction Quiet Day Stormy Day • Time varying magnetic field caused by solar ‘wind’ perturbing ionosphere.
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Unformatted text preview: Both rapid and long term changes Small corrections during quiet periods, larger during storms If too stormy, survey is discontinued. Correction data provided by: Repeat base station measurements or tie lines. Continuously recording base station....
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