| title | keywords | sidebar | permalink | summary | toc |
|---|---|---|---|---|---|
Fortran examples |
spherical harmonics software package, spherical harmonic transform, legendre functions, multitaper spectral analysis, fortran, Python, gravity, magnetic field |
mydoc_sidebar |
fortran-examples.html |
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A variety of test programs can be found in the folders in examples/fortran.
| Folder directory | Description |
|---|---|
SHCilmPlus/ |
Demonstration of how to expand spherical harmonic files into gridded maps using the GLQ routines, and how to compute the gravity field resulting from finite amplitude surface relief. |
SHExpandDH/ |
Demonstration of how to expand a grid that is equally sampled in latitude and longitude into spherical harmonics using the sampling theorem of Driscoll and Healy (1994). |
SHExpandLSQ/ |
Demonstration of how to expand a set of irregularly sampled data points in latitude and longitude into spherical harmonics by use of a least squares inversion. |
SHMag/ |
Demonstration of how to expand scalar magnetic potential spherical harmonic coefficients into their three vector components and total field. |
MarsCrustalThickness/ |
Demonstration of how to compute a crustal thickness map of Mars. |
SHRotate/ |
Demonstration of how to determine the spherical harmonic coefficients for a body that is rotated with respect to its initial configuration. |
SHLocalizedAdmitCorr/ |
Demonstration of how to calculate localized admittance and correlation spectra for a given set of gravity and topography spherical harmonic coefficients. |
TimingAccuracy/ |
Test programs that calculate the time required to perform the GLQ and DH spherical harmonic transforms and reconstructions and the accuracy of these operations. |