Compute the latitude and longitude coordinates used in Gauss-Legendre quadrature grids.


latglq, longlq = GLQGridCoord (lmax, [extend])


latglq : float, dimension (lmax+1)
The latitude coordinates of a Gauss-Legendre quadrature grid in degrees.
longlq : float, dimension (nlong)
The longitude coordinates of a Gauss-Lengendre quadrature grid in degrees, dimensioned as (2*lmax+1) when extend is 0 or (2*lmax+2) when extend is 1.


lmax : integer
The maximum spherical harmonic degree that will be integrated exactly by Gauss-Legendre quadrature.
extend : input, optional, bool, default = False
If True, include 360 E longitude.


GLQGridCoord will compute the latitude and longitude coordinates that are used in Gauss-Legendre quadrature grids for performing spherical harmonic transforms and reconstructions. The latitudinal nodes correspond to the zeros of the Legendre polynomial of degree lmax+1, and the longitudinal nodes are equally spaced with an interval of 360/(2*lmax+1) degrees.

Tags: python
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