Pressure-Latitude zonal mean contour plots

model_obs_9yr	Description	ANN	DJF	JJA
OMEGA global MERRA2	Vertical velocity (pressure)	ANN	DJF	JJA
OMEGA global ERA-Interim	Vertical velocity (pressure)	ANN	DJF	JJA
RELHUM global MERRA2	Relative humidity	ANN	DJF	JJA
RELHUM global ERA-Interim	Relative humidity	ANN	DJF	JJA
T global MERRA2	Temperature	ANN	DJF	JJA
T global ERA-Interim	Temperature	ANN	DJF	JJA
U global MERRA2	Zonal wind	ANN	DJF	JJA
U global ERA-Interim	Zonal wind	ANN	DJF	JJA