Gravity integral calculations for the gravity field of the Earth

SPECFEM can now compute the gravity field as well as its derivatives (i.e., gravity gradiometry) generated by any given 3D Earth model at the height of an observation satellite, for instance GOCE (see e.g. en.wikipedia.org/wiki/Gravity_Field_and_Steady-State_Ocean_Circulation_Explorer). That feature is still experimental but should work just fine.

To see how it is implemented and to use it, type this in the root directory of the code:

grep -i GRAVITY_INTEGRALS src/*/*

All main gravity field computations can be found in file src/meshfem3d/gravity_integrals.F90. Please make sure you compile the code with double-precision, i.e., use flag -``-``enable-double-precision for the configuration of the package.

This documentation has been automatically generated by pandoc based on the User manual (LaTeX version) in folder doc/USER_MANUAL/ (Dec 20, 2023)