SHTOOLS --- Tools for working with spherical harmonics

> Home > Documentation > Fortran 95 > Global Spectral Analysis

SHPowerL

Compute the power of a real function for a single spherical harmonic degree.

Usage

power = SHPowerL (cilm, l)

Parameters

power : output, real*8
Power of the function for a single spherical harmonic degree l.
cilm : input, real*8, dimension (2, lmaxin+1, lmaxin+1)
The spherical harmonic coefficients of the function.
l : input, integer
The spherical harmonic degree. This must be less than or equal to lmaxin.

Description

SHPowerL will calculate the power of a function expressed in real spherical harmonics for a single degree l. This is explicitly calculated as:

power = Sum_{i=1}^2 Sum_{m=0}^l cilm(i, l+1, m+1)**2 .

See also

shpowerdensityl, shcrosspowerl, shcrosspowerdensityl, shpowerspectrum, shpowerspectrumdensity, shcrosspowerspectrum, shcrosspowerspectrumdensity, shadmitcorr

> Home > Documentation > Fortran 95 > Global Spectral Analysis

Institut de Physique du Globe de Paris University of Sorbonne Paris Cité © 2016 SHTOOLS