Gravityfield2TrendPotentialCoefficients

This program estimates parametrizationTemporal (e.g. mean, trend, annual) from a time variable gravity field.

In a first step a time variable gravityfield is sampled at timeSeries and converted to coefficients of a spherical harmonics expansion. The expansion is limited in the range between minDegree and maxDegree inclusively. The coefficients are related to the reference radius R and the Earth gravitational constant GM.

These coefficients serves as observations of a robust least squares adjustment to estimate parametrizationTemporal parameters. For each temporal parameter an outputfilePotentialCoefficients is generated.