nllcrnrlat=53.871
nurcrnrlat=61.869
nllcrnrlon=72.9
nurcrnrlon=90
clevs = [0,300,1000,4000,10000]
ax = plt.subplot
ax = Basemap(projection='cyl',llcrnrlat=nllcrnrlat,urcrnrlat=nurcrnrlat,llcrnrlon=nllcrnrlon,urcrnrlon=nurcrnrlon,resolution='h')
ax.drawparallels(np.arange(nllcrnrlat,nurcrnrlat,0.186),labels=[True,False,False,False])
ax.drawmeridians(np.arange(nllcrnrlon,nurcrnrlon,0.225),labels=[False,False,False,True])
cs = ax.contourf(lons,lats,Index_Sver_total,clevs)
ax.colorbar(cs)
plt.title('Index Sverlova')
plt.show()

nllcrnrlat=53.871
nurcrnrlat=61.869
nllcrnrlon=72.9
nurcrnrlon=90
clevs = [0,300,1000,4000,10000]
ax = plt.subplot
ax = Basemap(projection='cyl',llcrnrlat=nllcrnrlat,urcrnrlat=nurcrnrlat,llcrnrlon=nllcrnrlon,urcrnrlon=nurcrnrlon,resolution='h')
ax.drawparallels(np.arange(nllcrnrlat,nurcrnrlat,0.186),labels=[True,False,False,False])
ax.drawmeridians(np.arange(nllcrnrlon,nurcrnrlon,0.225),labels=[False,False,False,True])
img = ax.imshow(Index_Sver_total,interpolation='none',cmap='jet')
ax.colorbar(img)
plt.title('Index Sverlova')
plt.show()