# CODE TABLE 3.15, Physical meaning of vertical coordinate
# 0-19 Reserved
20:20:Temperature:K:TMP
# 21-99 Reserved
100:100:Pressure:Pa:PRES
101:101:Pressure deviation from mean sea level:Pa:PRESD
102:102:Altitude above mean sea level:m:ALTMSL
103:103:Height above ground:m:HTGL
104:104:Sigma coordinate:-:SIGL
105:105:Hybrid coordinate:-:HYBL
106:106:Depth below land surface:m:DBLL
107:pt:Potential temperature (theta):K:THEL
108:108:Pressure deviation from ground to level:Pa:PREDEV
109:pv:Potential vorticity:K m-2 kg-1 s-1:PV
110:110:Geometrical height:m:GHT
111:111:Eta coordinate:-:ETA
112:112:Geopotential height:gpm:HGT
# 113-159 Reserved
160:160:Depth below sea level:m:DPMSL
# 161-191 Reserved
# 192-254 Reserved for local use
255:255:Missing
# Notes:
# (1) Negative values associated to this coordinate will indicate depth below ground surface.  If values are all below surface, use of entry 106 is recommended, with positive coordinate values instead.
# (2) The Eta vertical coordinate system involves normalizing the pressure at some point on a specific level by the mean sea level pressure at that point.
