1
#Code table 4.5: Fixed surface types and units
3
1 sfc Ground or water surface
5
3 3 Level of cloud tops
6
4 4 Level of 0o C isotherm
7
5 5 Level of adiabatic condensation lifted from the surface
10
8 sfc Nominal top of the atmosphere
13
20 20 Isothermal level (K)
15
100 pl Isobaric surface (Pa)
16
101 sfc Mean sea level
17
102 102 Specific altitude above mean sea level (m)
18
103 sfc Specified height level above ground (m)
19
104 104 Sigma level (sigma value)
21
106 sfc Depth below land surface (m)
22
107 pt Isentropic (theta) level (K)
23
108 108 Level at specified pressure difference from ground to level (Pa)
24
109 pv Potential vorticity surface (K m2 kg-1 s-1)
28
117 117 Mixed layer depth (m)
30
160 160 Depth below sea level (m)
32
#192-254 Reserved for local use