[ncl-talk] Convert data frame to spatial coordinates

[Vanúcia Schumacher]

My data is in ascii format (e.g. attached). Yes, I would like to use some kind of cartographic projection, type Cylindrical equidistant or Mercator.
That would be exactly what this library does (Proj4).
The specific region of the projection would be Brazil, maybe I will use some shapefile to cut some specific region.
It would be great to have this interface. Let me know everything you need to work out.
Thanks for the support
________________________________
De: Rick Brownrigg <brownrig at ucar.edu>
Enviado: segunda-feira, 11 de novembro de 2019 12:16
Para: Vanúcia Schumacher <vanucia-schumacher at hotmail.com>
Cc: ncl-talk at ucar.edu <ncl-talk at ucar.edu>
Assunto: Re: [ncl-talk] Convert data frame to spatial coordinates

To me, points with lat/lon are spatial data with coordinates (?)  Do you mean you want the coordinates in some kind of cartographic projection, such as Lambert Conformal, UTM, Mercator, etc?  If so, NCL has an undocumented interface to the Proj4 casrtographic projection library. I can elaborate further, but you need to know all the projection parameters involved (standard parallels, meridian,  etc.).

Rick



On Mon, Nov 11, 2019 at 8:11 AM Vanúcia Schumacher via ncl-talk <ncl-talk at ucar.edu<mailto:ncl-talk at ucar.edu>> wrote:
Hi users,

I would like to know if NCL or NCL-Phyton has any function for converting points (just lat and lon) to spatial data with coordinates?

Data frame like this:
type,year,mon,day,hr,min,seg,lat,lon,var
CGC,2015,8,29,0,0,1,-5.0811541,-52.1089013,-11538
...
...
...

Thanks for any support

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