def plot_dewpoint_temperature(ncFile, targetDir, windScaleFactor=50):
logger = PyPostTools.pyPostLogger()
fig, ax, X, Y = prepare_plot_object(ncFile)
st, fh, fh_int = getTimeObjects(ncFile)
TD = ncFile["TD"]
TD_F = Conversions.C_to_F(TD)
clevs = np.linspace(-20, 85, 36)
norm = matplotlib.colors.BoundaryNorm(clevs, 36)
contours = plt.contourf(X,
Y,
TD_F,
clevs,
norm=norm,
cmap=ColorMaps.td_colormap,
transform=ccrs.PlateCarree())
cbar = plt.colorbar(ax=ax, orientation="horizontal", pad=.05)
cbar.set_label("Dewpoint Temperature ($^\circ$ F)")
u = ncFile["SFC_U"]
v = ncFile["SFC_V"]
uKT = Conversions.ms_to_kts(u)
vKT = Conversions.ms_to_kts(v)
plt.barbs(to_np(X[::windScaleFactor, ::windScaleFactor]),
to_np(Y[::windScaleFactor, ::windScaleFactor]),
to_np(uKT[::windScaleFactor, ::windScaleFactor]),
to_np(vKT[::windScaleFactor, ::windScaleFactor]),
transform=ccrs.PlateCarree(),
length=6)
plt.title("Surface Dewpoint Temperature ($^\circ$F), Winds (kts)")
plt.text(0.02,
-0.02,
"Forecast Time: " + fh.strftime("%Y-%m-%d %H:%M UTC"),
ha='left',
va='center',
transform=ax.transAxes)
plt.text(0.7,
-0.02,
"Initialized: " + st.strftime("%Y-%m-%d %H:%M UTC"),
ha='left',
va='center',
transform=ax.transAxes)
plt.subplots_adjust(bottom=0.1)
plt.savefig(targetDir + "/TD_F" + str(fh_int))
plt.close(fig)
return True
