Re: uv2sfvpF information

All 'harmonics' are used.

FYI: an alternative to using uv2sfvpF is

     psi = ilapsF( uv2vrF(u,v), 0)
     chi = ilapsF( uv2dvF(u,v), 0)

     psi_at_long_name = "stream function" ; assign information
     psi_at_units = "m^2/s"
     chi_at_long_name = "velocity potential"
     chi_at_units = "m^2/s"

Assuming you have loaded contributed.ncl

     copy_VarCoords(u, psi) ; copy coordinate information
     copy_VarCoords(u,chi)

     printVarSummary(psi)
     printVarSummary(chi)

franco.catalano_at_uniroma1.it wrote:
>
> Hi NCL developers and users,
> I am using uv2sfvpF function to calculate the stream function
> of a wind field. This function computes the spherical
> harmonics of the wind field and so it performs a decomposition
> and filtering of the original field. I would like to know how many
> harmonics are considered for the reconstruction of the stream
> function.
> Thank you for your kindness.
> Franco
>

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Received on Wed Apr 02 2008 - 10:54:02 MDT