fatiandofatiando.constants)¶Holds all physical constants and unit conversions used in fatiando.
All modules should import the constants from here!
All constants should be in SI, unless otherwise stated!
fatiando.constants.CM = 1e-07¶Proportionality constant used in the magnetic method in henry/m (SI)
fatiando.constants.G = 6.673e-11¶The gravitational constant in \(m^3 kg^{-1} s^{-1}\)
fatiando.constants.MEAN_EARTH_RADIUS = 6378137.0¶The mean earth radius in meters
fatiando.constants.PERM_FREE_SPACE = 1.2566370614359173e-06¶Permeability of free space in \(N A^{-2}\)
fatiando.constants.SI2EOTVOS = 1000000000.0¶Conversion factor from SI units to Eotvos: \(1/s^2 = 10^9\ Eotvos\)
fatiando.constants.SI2MGAL = 100000.0¶Conversion factor from SI units to mGal: \(1\ m/s^2 = 10^5\ mGal\)
fatiando.constants.T2NT = 1000000000.0¶Conversion factor from tesla to nanotesla
fatiando.constants.THERMAL_DIFFUSIVITY = 1e-06¶The default thermal diffusivity in \(m^2/s\)
fatiando.constants.THERMAL_DIFFUSIVITY_YEAR = 31.5576¶The default thermal diffusivity but in \(m^2/year\)