Dr. Don's

SPREADSHEET AND FILE ARCHIVE
(If I keep them here, even I won't misplace them) - updated 05/08/06

General Interest (Excel spreadsheets): STANDARD DISCLAIMER (use at your own peril, I usually need help finding the errors).

Convert latitude and longitude to UTM<note: works for USA maps, NAD27>

Convert UTM to Latitude and Longitude <note: works for USA maps, NAD27> Corrected on 3/3/99 - the old version contains errors for those doing multiple conversions!

Mike's gravitational pull of sun and moon: not yet certified as correct by Dr.D.

Viewing seismograms from OhioSeis stations with Excel in Windows.  Paste data from a 1-hour OhioSeis file into the "Data" sheet.

Schlumberger sounding: forward model <note: calculates apparent resistivity as function of AB/2>

Wenner sounding: Forward model <note: calculates apparent resistivity as function of "a"-spacing>

Magnetic dipole spreadsheet   Magnetic dipole explanation

EM34 forward model

Data files for Geology 2030

GPS1    ( Excel file!)

Data files for Geology 2500

    Topo1 (text file)

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