[ncl-talk] Generate a quarter of a degree grid with landsea_mask

Dave Allured - NOAA Affiliate dave.allured at noaa.gov
Wed Dec 4 12:43:16 MST 2019


Yes you can.  However, landsea_mask interpolates from a 1 degree source
mask.  Notice the footnote about resolution on the landsea_mask doc page.

For higher resolution grids, you will get a more accurate land sea mask if
you extract from an appropriate resolution shape file.  See examples
mask_12 and shapefiles_11 on the NCL shapefiles example page.  In
particular, see the function shapefile_mask_data which is used by these
examples.  That function and its documentation are in a separate include
file, not in the normal NCL function docs.


On Wed, Dec 4, 2019 at 12:12 PM Tony L. via ncl-talk <ncl-talk at ucar.edu>
wrote:

> Hello!
> I'm trying to generate a quarter of a degree land sea mask grid and output
> the result either in ASCII or netcdf format.
> Can I use landsea_mask this in order to achieve this?
>
> Tony
>
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