Computer Programs ( Spanish version)


Geopotential model

This program allows the calculation of the geoid undulation by using of a geopotential model.

Regional geoid models

You can get free from this link geoid models developed for several regions of the world.

Gravity data handler

The Gravity Data Handler is a computer program developed to calculate free-air and Bouguer gravity anomalies and perform the conversion between different type of gravity data.

Distance and azimuth

This computer program has been developed to calculate the distance and the azimuth for two points over the earth, considering the earth like a sphere.

Geodesic lines

This computer program has been developed to calculate the geodesic lines of the revolution ellipsoid, defined by the Geodetic Reference System of 1980 (GRS80). The distance and azimuth are also computed for each geodesic.

Time series analysis

This program allows the calculation of the amplitude and phase spectrum of time series.

Displacements, velocities and accelerations converter

Computer program to perform the the conversion between time records of displacements, velocities and accelerations.

Instrumental response

Computer program to perform the instrumental correction in seismic records.

Digital filtering: high-pass, low-pass and band-pass

Computer program for digital filtering of time series by means of the high-pass, low-pass and band-pass filtering techniques.

Digital filtering: high-pass, low-pass and band-pass in 2D

Computer program for digital filtering by means of the high-pass, low-pass and band-pass filtering techniques applied to 2D input data.

Digital filtering: MFT

Computer program for digital filtering of surface waves registers by means of the Multiple Filter Technique (MFT).

Digital filtering: TVF

Computer program for digital filtering of surface waves registers by means of the Time Variable Filter (TVF).

Digital filtering: Wiener Deconvolution

Computer program for digital filtering of surface waves registers by means of the Wiener Deconvolution.

Synthetic seismograms generator

This program allows the generation of synthetic seismograms of surface waves.

Theoretical amplitudes and velocities of surface waves

This program allows the generation of theoretical amplitudes and velocities for the Rayleigh and Love waves.

Azimuthal variation of surface-wave velocity

The azimuthal variation of surface-wave velocity for a slightly anisotropic medium, can be obtained with this program.

Transmission and reflection of surface waves at a vertical contact

The transmission and reflection coefficients of surface waves at a vertical contact, can be obtained with this program.

Computation of the observed ellipticity

The observed ellipticity of the Rayleigh wave can be obtained with this program.

Moho depth according to the Vening Meinesz' theory

The Moho depth, according to the Vening Meinesz' theory, can be obtained with this program.