both plotgrids.ncl and plotgrids_new.ncl are not right for rotated latlon

[littleho_song]

projection it seems. this is what i have tried ... the plots looks strange

e_we = 126
e_sn = 123
dx = 0.44,
dy = 0.44,
map_proj = 'lat-lon',
ref_lat = 60.21,
ref_lon = -44.14,
ref_x = 11,
ref_y = 113,
stand_lon = -18,
pole_lat = 39.25,
pole_lon = -162,

 

[littleho_song]

My related question with this is:

Why not using lambert projection? isn't this going to distort more than the lambert?

 

[abjaye]

Hi,

So NCL really struggles with the wrf rotated lat-lon projections, especially if they were made with the domain wizard. What area are you hoping to have in your domain? I have attached the plot I get when I used your namelist.wps on my end. Another way to test your domain to see if it is what you want is to go ahead and run geogrid and look at the landmask in geo_em.d01.nc.

Lambert is great depending on your domain. The closer you get to the poles, the more skewed it gets.

 

[littleho_song]

could you share your modification to the plotgrids_new.ncl? Your plot looks fine

 

[abjaye]

I did not make a modification to the script. What version of NCL are you using?