mask and data not compatible

[tysonoggie]

m = Basemap(projection='ortho',lat_0=-85,lon_0=-60,resolution='l') lon2, lat2 = np.meshgrid(sst_gradient.lon,sst_gradient.lat) x, y = m(lon2, lat2) z = np.array(sst_gradient.values) fig = plt.figure(figsize=(15,7)) clevs = np.arange(1,10,1.5) cnplot = m.contour(x,y,z,clevs,cmap=plt.cm.RdYlGn) /*error in this line cbar = m.colorbar(cnplot)

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MaskError Traceback (most recent call last)

in ----> 1 cnplot = m.contour(x,y,z,clevs,cmap=plt.cm.RdYlGn) 2 cbar = m.colorbar(cnplot) ~/anaconda3/envs/myenv/lib/python3.6/site-packages/mpl_toolkits/basemap/__init__.py in with_transform(self, x, y, data, *args, **kwargs) 544 # convert lat/lon coords to map projection coords. 545 x, y = self(x,y) --> 546 return plotfunc(self,x,y,data,*args,**kwargs) 547 return with_transform 548 ~/anaconda3/envs/myenv/lib/python3.6/site-packages/mpl_toolkits/basemap/__init__.py in contour(self, x, y, data, *args, **kwargs) 3570 # combine with data mask. 3571 mask = np.logical_or(ma.getmaskarray(data),xymask) -> 3572 data = ma.masked_array(data,mask=mask) 3573 CS = ax.contour(x,y,data,*args,**kwargs) 3574 finally: ~/anaconda3/envs/myenv/lib/python3.6/site-packages/numpy/ma/core.py in __new__(cls, data, mask, dtype, copy, subok, ndmin, fill_value, keep_mask, hard_mask, shrink, order, **options) 2870 msg = "Mask and data not compatible: data size is %i, " + \ 2871 "mask size is %i." -> 2872 raise MaskError(msg % (nd, nm)) 2873 copy = True 2874 # Set the mask to the new value MaskError: Mask and data not compatible: data size is 1, mask size is 2592000. ------------------------------------------------------------------------------------------------------------------------------- shape of sst_gradient.lon=4320 and sst_gradient.lat=600, length of sst_gradient.values=1 thanks in advance