[ncl-talk] stream function calculation

[Gang Lu]

I am trying to calculate and plot stream function for ionosheric plasma
drifts (2D vector field similar to wind field), and I come across this NCL
function (uv2sfvpf) which seems to be what I need.
But I am not a NCL user and I am using IDL to write my own analysis codes.
I wonder if you could point me to the source code behind the "uv2sfcpf"
function so that I can modify it for my purpose.

Rick Brownrigg kindly pointed me to "sph2W.c" and "sp2_util_dp.f" on
Github. However these

are not the source codes for calculating the stream function.

I apologize if this is not the right group for posting such a question. But

I would appreciate nay help that you might offer.

Thanks,

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Gang Lu
High Altitude Observatory
National Center for Atmospheric Research
3080 Center Green Drive, Boulder, CO 80301
email: ganglu at ucar.edu
Phone: 303-497-1554 (office); 303-495-9990 (cell)
Fax: 303-497-1589
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