[ncl-talk] lat,lon not accurately generated by NCL

[Guoqing Ge - NOAA Affiliate]

Hi Craig,  thanks a lot for your sharing this note and the "proj.4"
information. It really helps.

Best,

Guoqing

--
Guoqing Ge, PhD
CIRES Research Scientist
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325 Broadway, Boulder, CO 80305
(303)497-4163
&
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On Tue, Jul 31, 2018 at 1:05 PM, Craig Mattocks <mattocks at mac.com> wrote:

> See this note about the dangers of transforming between geocentric
> (spherical) and geodetic (ellipsoidal) coordinate systems (especially the
> difference in latitudes):
>
> http://www.pkrc.net/wrf-lambert.html#_footnote_2
>
> Transform from Lambert conic conformal to spherical lat,lon first to avoid
> errors.
>
> Note: I believe NCL uses proj.4 for map projections.
>
> We’ve been fighting a similar issue in AWIPS II.
>
> Craig
>
> On Mon, 30 Jul 2018 12:32:22 -0600, Guoqing Ge - NOAA Affiliate <
> guoqing.ge at noaa.gov> wrote:
>
> > Recently, I found an issue on the generation of grid meshes using a
> > prescribed map projection information.
>
>
>
>
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