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Some changes to make tracpy better with idealized Cartesian models. #7

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Jun 2, 2014
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Some changes to make tracpy better with idealized Cartesian models. #7

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52 changes: 37 additions & 15 deletions tracpy/inout.py
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Original file line number Diff line number Diff line change
Expand Up @@ -278,30 +278,52 @@ def readgrid(grid_filename, vert_filename=None, llcrnrlon=-98.5, llcrnrlat=22.5,
# gridfile = netCDF.Dataset(loc[1])
# use full dataset to get grid information
# This addresses an issue in netCDF4 that was then fixed, but
# this line makes updating unnecessary. Issue described here:
# this line makes updating unnecessary. Issue described here:
# http://code.google.com/p/netcdf4-python/issues/detail?id=170
netCDF._set_default_format(format='NETCDF3_64BIT')
# pdb.set_trace()
gridfile = netCDF.Dataset(grid_filename)
lonu = gridfile.variables['lon_u'][:]
latu = gridfile.variables['lat_u'][:]
xu, yu = basemap(lonu,latu)
lonv = gridfile.variables['lon_v'][:]
latv = gridfile.variables['lat_v'][:]
xv, yv = basemap(lonv,latv)
lonr = gridfile.variables['lon_rho'][:]#[1:-1,1:-1]
latr = gridfile.variables['lat_rho'][:]#[1:-1,1:-1]
xr, yr = basemap(lonr,latr)
lonpsi = gridfile.variables['lon_psi'][:]
latpsi = gridfile.variables['lat_psi'][:]
xpsi, ypsi = basemap(lonpsi,latpsi)
mask = gridfile.variables['mask_rho'][:]#[1:-1,1:-1]
if usespherical:
lonu = gridfile.variables['lon_u'][:]
latu = gridfile.variables['lat_u'][:]
xu, yu = basemap(lonu,latu)
lonv = gridfile.variables['lon_v'][:]
latv = gridfile.variables['lat_v'][:]
xv, yv = basemap(lonv,latv)
lonr = gridfile.variables['lon_rho'][:]#[1:-1,1:-1]
latr = gridfile.variables['lat_rho'][:]#[1:-1,1:-1]
xr, yr = basemap(lonr,latr)
lonpsi = gridfile.variables['lon_psi'][:]
latpsi = gridfile.variables['lat_psi'][:]
xpsi, ypsi = basemap(lonpsi,latpsi)
else:
# read cartesian data
xu = gridfile.variables['x_u'][:]
yu = gridfile.variables['y_u'][:]
xv = gridfile.variables['x_v'][:]
yv = gridfile.variables['y_v'][:]
xr = gridfile.variables['x_rho'][:]
yr = gridfile.variables['y_rho'][:]
xpsi = gridfile.variables['x_psi'][:]
ypsi = gridfile.variables['y_psi'][:]

# assign to spherical arrays
lonu, latu = xu, yu
lonv, latv = xv, yv
lonr, latr = xr, yr
lonpsi, latpsi = xpsi, ypsi

try:
mask = gridfile.variables['mask_rho'][:]#[1:-1,1:-1]
except KeyError:
mask = np.ones_like(xr)

pm = gridfile.variables['pm'][:]
pn = gridfile.variables['pn'][:]
h = gridfile.variables['h'][:]
# angle = gridfile.variables['angle'][:]
# pdb.set_trace()
if keeptime:
if keeptime:
hgridtime = time.time()
print "horizontal grid time ", hgridtime - basemaptime

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