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

[Dennis Shea]

A JIRA ticket has been opened:

Issue NCL-2764 - setfileoption: specify earth radius in NCL when reading
GRIB files <https://jira.ucar.edu/browse/NCL-2764>

Possibly:
*setfileoption*("grb", "radius_of_earth", ‎6.3781e6 ) ; if meters
*setfileoption*("grb", "radius_of_earth", ‎6378.1 )     ; if km

On Fri, Aug 3, 2018 at 11:26 AM, Guoqing Ge - NOAA Affiliate <
guoqing.ge at noaa.gov> wrote:

> HI Craig, thanks a lot for this work around.
>
> I still hope there is a direct option to easily set earth radius in NCL
> just as in WGRIB2.
>
> Best,
>
> Guoqing
>
>
> --
> Guoqing Ge, PhD
> CIRES Research Scientist
> at NOAA/ESRL/GSD (Rm 2B502)
> 325 Broadway, Boulder, CO 80305
> (303)497-4163
> &
> Thursdays at
> Developmental Testbed Center (FL3-1039)
> 3450 Mitchell Ln, Boulder, CO 80301
> (303)497-8445
>
>
>
> On Fri, Aug 3, 2018 at 11:22 AM, Craig Mattocks <mattocks at mac.com> wrote:
>
>> Hi Guoqing,
>>
>> I assume the NCL developers could make this setting available through
>> their API.
>>
>> BTW, there are Fortran wrappers available for proj.4:
>>
>> https://github.com/mhagdorn/proj4-fortran
>>
>> or you could use a Fortran system call, or an NCL systemfunc call:
>>
>> https://www.ncl.ucar.edu/Document/Functions/Built-in/systemfunc.shtml
>>
>> Best,
>> Craig
>>
>>
>
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