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add map_proj = 6 (Lat-lon) #221

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Sep 6, 2022
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add map_proj = 6 (Lat-lon) #221

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12 changes: 12 additions & 0 deletions salem/sio.py
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Original file line number Diff line number Diff line change
Expand Up @@ -140,6 +140,12 @@ def _wrf_grid_from_dataset(ds):
if ds.PROJ_NAME in ['Lambert Conformal Conic',
'WRF Lambert Conformal']:
proj_id = 1
elif ds.PROJ_NAME in ['polar stereographic']:
proj_id = 2
elif ds.PROJ_NAME in ['mercator']:
proj_id = 3
elif ds.PROJ_NAME in ['LatLon', 'lat-lon', 'LatLong']:
proj_id = 6
else:
proj_id = 99 # pragma: no cover
else:
Expand Down Expand Up @@ -172,6 +178,12 @@ def _wrf_grid_from_dataset(ds):
'+lon_0={center_lon} ' \
'+x_0=0 +y_0=0 +a=6370000 +b=6370000'
p4 = p4.format(**pargs)
elif proj_id == 6:
# Lat-long
p4 = '+proj=eqc ' \
'+lon_0={lon_0} ' \
'+x_0=0 +y_0=0 +a=6370000 +b=6370000'
p4 = p4.format(**pargs)
else:
raise NotImplementedError('WRF proj not implemented yet: '
'{}'.format(proj_id))
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5 changes: 5 additions & 0 deletions salem/wrftools.py
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Expand Up @@ -722,6 +722,11 @@ def geogrid_simulator(fpath, do_maps=True, map_kwargs=None):
pwrf = '+proj=stere +lat_ts={lat_1} +lat_0=90.0 +lon_0={lon_0} ' \
'+x_0=0 +y_0=0 +a=6370000 +b=6370000'
pwrf = pwrf.format(**pargs)
#TODO: not sure how map_proj is converted to this string instead of int?
elif map_proj == 'LATLON':
pwrf = '+proj=eqc +lon_0={lon_0} ' \
'+x_0=0 +y_0=0 +a=6370000 +b=6370000'
pwrf = pwrf.format(**pargs)
else:
raise NotImplementedError('WRF proj not implemented yet: '
'{}'.format(map_proj))
Expand Down