Gravityfield2DegreeAmplitudes

This program computes degree amplitudes from a gravityfield and saves them to a matrix file with three columns: the degree, the degree amplitude, and the formal errors.

The coefficients can be converted to different functionals with kernel. The gravity field can be evaluated at different altitudes by specifying evaluationRadius. Polar regions can be excluded by setting polarGap. If set the expansion is limited in the range between minDegree and maxDegree inclusivly. The coefficients are related to the reference radius R and the Earth gravitational constant GM.

See also PotentialCoefficients2DegreeAmplitudes.

Name	Type	Annotation
outputfileMatrix	filename	three column matrix with degree, signal amplitude, formal error
gravityfield	gravityfield
kernel	kernel
type	choice	type of variances
rms		degree amplitudes (square root of degree variances)
accumulation		cumulate variances over degrees
median		meadian of absolute values per degree
time	time	at this time the gravity field will be evaluated
evaluationRadius	double	evaluate the gravity field at this radius (default: evaluate at surface
polarGap	angle	exclude polar regions (aperture angle in degrees)
minDegree	uint
maxDegree	uint
GM	double	Geocentric gravitational constant
R	double	reference radius