List of All Geophysics Formulas

All Geophysics Formulas List

Wenner Spacing Soil Resistivity


Wenner Spacing - Soil Resistivity:

Soil Resistivity:
Wenner Spacing - Soil Resistivity
Electrode Spacing:
Electrode Spacing
Voltage at Inner Electrodes:
Voltage at Inner Electrodes
Current at Outer Electrodes:
Current at Outer Electrodes


where,
R = Soil Resistivity
S =Electrode Spacing
V =Voltage at Inner Electrodes
I =Current at Outer Electrodes

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Seismic Geophone

Seismic Geophone - Overburden or Upper Layer Depth:

Overburden or Upper Layer Depth:
Overburden or Upper Layer Depth
Intersection Point Distance:
Intersection Point Distance
Overburden or Upper Layer Seismic Velocity:
Overburden or Upper Layer Seismic Velocity
Bedrock or Lower Layer Seismic Velocity:
Bedrock or Lower Layer Seismic Velocity



Where,

t = Overburden or Upper Layer Depth,
d = Intersection Point Distance,
v1 =Overburden or Upper Layer Seismic Velocity,
v2 =Bedrock or Lower Layer Seismic Velocity.

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Luminosity of Stars

Formula Used to calculate luminosity of stars:


L=4*Pi*d2*b

Where

L = Luminosity of the star
d = Distance in meters
b = Brightness in W/m2

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Orbital Speed

Formula :


Orbital speed =2 x ∏ x a / T

Where,

a = semimajor axis length
T = Orbital period

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Satellite Orbit Data

Formula:


Antenna Azimuth and Elevation


Where,

long rx = Receiver Longitude
long sat = Satellite Longitude
lat rx = Receiver Latitude
h = 35,800 km
Ro = 6,370 km

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Topsoil Bulk Density

Formula:

Bulk Density of Topsoil (g/cm3) = Dry Soil Weight (g) / Soil Volume (cm3)

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Orbit

Formula:

R = 6378.14 + h
V = √( 398600.5 / R)
P = 2π * (R / V)

Orbit of Earth or Satellite


Where,

R = Orbital Radius
h = Orbital Altitude
V = Flight Velocity
P = Orbital Period

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Drip

Formula:

Dripsday = 1440 * a * b * c
Litersday = Dripsday / 4000
Gallonsday = Dripsday / 3.785
Gallonsyear = Gallonsday * 365


Where,

a = Number of drips per minute
b = Number of faucets in each home
c = Number of homes

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