Re: lambert conformal coordinates

Micah,

Does the data set come with coordinate variables containing the lats
and lons? I have found that it is often easier to find the target
point in the coordinate arrays, rather than implementing the
transformation equations.

This is also a standardized approach where the same search code will
usually work with any map projection, provided that coordinates are
included with the data set. HTH.

--Dave

On 10/19/2011 7:39 AM, Micah Sklut wrote:
> This isn't so much an NCL question, but perhaps someone would like
> to help me any way with a lambert conformal question!
>
> If I have a lat/lon, and I want to find the data values of that
> lat/lon in a lambert conformal data set, what equations can I use to
> find the x/y coordinates of the data set.
>
> Specifically I am using the NCEP nam data, which has:
> ygrid - 428
> xgrid - 614
> lat-corners - ( 12.19, 14.34209, 57.32843, 54.56534 )
> lon-corners - ( -133.459, -65.12556, -49.416, -152.8786 )
>
> So, if I have a lat/lon, say of 38.5/-98.0, how can i get the
> matching x/y.
>
> I have found some equations, but I am still confused.
> Thanks so much for any suggestions.
>
> --
> Micah Sklut
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Received on Wed Oct 19 13:32:15 2011