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Magnetics GPH 492 John Louie Spring 2010

Magnetics GPH 492 John Louie Spring 2010. Sam Saunders, Todd Morine , Miles Kreidler , and Ryan Loux. Overview. Project Methods Data Results Sources of Error. Project. Spring Break April 21-26 GPH 492 Field Exercise Magnetic Surveys of 4 transects completed over 5 days

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Magnetics GPH 492 John Louie Spring 2010

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  1. MagneticsGPH 492John LouieSpring 2010 Sam Saunders, Todd Morine, Miles Kreidler, and Ryan Loux

  2. Overview • Project • Methods • Data • Results • Sources of Error

  3. Project • Spring Break April 21-26 • GPH 492 Field Exercise • Magnetic Surveys of 4 transects completed over 5 days • Hidden Valley North • Hidden Valley South • Prater • Whitewood

  4. Methods • One set of 2 magnetometers used • 1 Base station • 1 mobile station • Equipment was from 1980 • Base station magnetometer broke after Day 2

  5. Methods, continued • Need for base station • Need for calibration of instrument

  6. Data Collected • Northing (m) • Easting (m) • Time • Total Magnetic Field (nT) • Noise (nT)

  7. Results • Not what we expected • Instrument error suspected

  8. Results, continued

  9. Results, continued

  10. Results, continued

  11. Sources of Error • Instrument Error • Low Kerosene in magnetometer • Calibration needed? • Initial base station calibration • Local interference • Any metal objects • Power lines • Cellular phones

  12. Questions?

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