Pressure levels

Predefined pressure level sets

With the parameter MET_PRESS_LEVEL_DEF vertical pressure levels can be selected from a number of definitions. The definitions follow the ECMWF's model level definitions. Additional levels up to ~1045 hPa have been added to avoid extrapolation errors near the surface. Per default, the value is set to -1 and hence pre-defined pressure level sets ignored. The recommended pressure level set for ERA5 is number 6.

MET_PRESS_LEVEL_DEF	Name	bottom	top	number of levels
0	L137	1044.45 hPa	0.02 hPa	138
1	L91	1044.45 hPa	0.02 hPa	92
2	L60	1044.45 hPa	0.01 hPa	60
3	L137	1044.45 hPa	0.02 hPa	147
4	L91	1044.45 hPa	0.02 hPa	101
5	L60	1044.45 hPa	0.01 hPa	62
6	L137	1044.45 hPa	0.01 hPa	137
7	L60	1046.13 hPa	0.1 hPa	59