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__init__.py
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/
__init__.py
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"""
pyshtools Gravity and Magnetics Routines.
This subpackage of pyshtools defines the following functions:
Gravity routines
----------------
MakeGravGridDH Create 2D cylindrical maps on a flattened and rotating
ellipsoid of all three components of the gravity field,
the gravity disturbance, and the gravitational potential.
MakeGravGradGridDH Calculate the components of the gravity "gradient" tensor
on a flattened ellipsoid.
MakeGeoidGridDH Create a global map of the geoid.
CilmPlusDH Calculate the gravitational potential exterior to relief
along a spherical interface using the finite-amplitude
algorithm of Wieczorek and Phillips (1998) on a Driscoll
and Healy (1994) grid.
CilmMinusDH Calculate the gravitational potential interior to relief
along to a spherical interface using the finite-amplitude
algorithm of Wieczorek and Phillips (1998) on a Driscoll
and Healy (1994) grid.
CilmPlusRhoHDH Calculate the gravitational potential exterior to relief
along a spherical interface with laterally varying density
using the finite amplitude algorithm of Wieczorek (2007)
on a Driscoll and Healy (1994) grid.
CilmMinusRhoHDH Calculate the gravitational potential interior to relief
along a spherical interface with laterally varying density
using the finite amplitude algorithm of Wieczorek (2007)
on a Driscoll and Healy (1994) grid.
BAtoHilmDH Calculate iteratively the relief along an interface with
constant density contrast that corresponds to a given
Bouguer anomaly using the algorithm of Wieczorek and
Phillips (1998).
BAtoHilmRhoHDH Iteratively calculate the relief along an interface with
laterally varying density contrast that corresponds to a
given Bouguer anomaly using the algorithm of Wieczorek and
Phillips (1998).
DownContFilterMA Compute the minimum-amplitude downward continuation filter
of Wieczorek and Phillips (1998).
DownContFilterMC Calculate a minimum-curvature downward continuation filter
for a given spherical harmonic degree.
NormalGravity Calculate the normal gravity on a flattened ellipsoid
using the formula of Somigliana.
Magnetics routines
------------------
MakeMagGridDH Create 2D cylindrical maps on a flattened ellipsoid of
all three vector components of the magnetic field, the
magnitude of the magnetic field, and the magnetic
potential.
MakeMagGradGridDH Calculate the components of the magnetic field tensor
on a flattened ellipsoid.
mag_spectrum Compute the spectrum of either the magnetic potential
or magnetic field strength.
"""
from __future__ import absolute_import as _absolute_import
from __future__ import division as _division
from __future__ import print_function as _print_function
from ..shtools import MakeGravGridDH
from ..shtools import MakeGravGradGridDH
from ..shtools import MakeGeoidGridDH
from ..shtools import CilmPlusDH
from ..shtools import CilmMinusDH
from ..shtools import CilmPlusRhoHDH
from ..shtools import CilmMinusRhoHDH
from ..shtools import BAtoHilmDH
from ..shtools import BAtoHilmRhoHDH
from ..shtools import DownContFilterMA
from ..shtools import DownContFilterMC
from ..shtools import NormalGravity
from ..shtools import MakeMagGridDH
from ..shtools import MakeMagGradGridDH
from .mag_spectrum import mag_spectrum