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Glossary - not intended to be complete so add your own terms
Links: (Houghton Mifflin glossary
of geology, Wolfram science
world, IGC gravity/magnetism)
As I introduce and use new terms and concepts I'll try to keep this list
up to date. I am sure I will forget to add some, that does not relieve you
of the responsibility of learning and understanding things I omit. Thus, I
provide this for some guidance. I recommend you know and understand these
terms and how they are relevant to geophysical imaging of the subsurface.
Week 1: - my thought process flow
chart
gravity, mass, force, acceleration
Newton's laws, milligal, anomaly
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Week 2: Drift
curve, latitude correction, free air correction, Bouguer correction,
Bouguer anomaly. |
| Week 3: V=IR, potential, current, resistance, resistivity
electrode, source, sink, equipotential surface, Wenner, Dipole-Dipole,
sounding, profiling, mapping. |
Week 4: Forward vs inverse modeling, Wenner,
dipole-dipole, pseudosections. |
| Week 5: Declination, inclination, magnetic elements,
dipole, dipole field, magnetite, hematite. |
Week 7-8: upward continuation, gridding,
interpolation, extrapolation. |
| Week 9-10: GPR, dielectric constant, relative dielectric
permitivity, wavelenght, frequency, footprint reflection coefficient,
multiples, ringing, diffraction hyperbola. |
Week 10-12: Central antenna
frequency, downloading frequency, time slice, gain, DC filter, bandpass
filters. |
The following is from the 2007 course so the order of terms will
be different for this year's course but it still provides a guide to developing
an operational vocabulary.
Week 1:
magnetite
hematite
goethite
oxidized
electrical resistance
electrical current
Newton's laws of gravity
radar
radio waves
reflection
causative source
material contrasts
distance=rate * time
velocity
density |
Week 2:
Ohm's law (V=IR)
two-way travel time
spherical divergence
trace
Velocity=wavelength * frequency
profile
amp
electrode
megahertz
gigahertz
ionosphere
sinusoidal (period, frequency,
amplitude)
gradient
magnetic gradiometry
frequency filter
bandpass filter
center frequency
time to depth conversion |
Week 3:
amplitude
wavelength
frequency
phase
spectral analysis
gradient
anomaly
1/r^2 vs frequency |
| Week 4:
frequency spectrum
electromagnetic wave
conductive ground
dielectric constant
RDP
velocity ~1/RDP
bulk RDP
cm/ns
m/micro-s
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Week 5:
reflection coefficient
multiples
ringing
footprint
resolution
time slices
depth controls
ideal antenna spectra
real antenna spectra
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Week 9:
stacks
time window
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