AH              13   N   absolute humidity                    
AHMAN           33   N   absolute humidity                    
AHSIG           53   N   absolute humidity                    
AHTROP         113   N   absolute humidity                    
DD               1   N   wind direction                       
DDMAN           21   N   wind direction                       
DDMXWND         81   N   wind direction                       
DDTROP         101   N   wind direction                       
DDWIND          61   N   wind direction                       
DPD             10   N   dewpoint depression                  
DPDMAN          30   N   dewpoint depression                  
DPDSIG          50   N   dewpoint depression                  
DPDTROP        110   N   dewpoint depression                  
FF               2   N   wind speed                           
FFMAN           22   N   wind speed                           
FFMXWND         82   N   wind speed                           
FFTROP         102   N   wind speed                           
FFWIND          62   N   wind speed                           
HT              12   N   geopotential height                  
HTMAN           32   N   geopotential height                  
HTMXWND         92   N   geopotential height                  
HTSIG           52   N   geopotential height                  
HTTROP         112   N   geopotential height                  
HTWIND          72   N   geopotential height                  
LEVTYPE        120   N   level type                           
P               11   N   pressure                             
PMAN            31   N   pressure                             
PMXWND          91   N   pressure                             
PSIG            51   N   pressure                             
PTROP          111   N   pressure                             
PWIND           71   N   pressure                             
Q                9   N   specific humidity                    
QMAN            29   N   specific humidity                    
QSIG            49   N   specific humidity                    
QTROP          109   N   specific humidity                    
RELTIME         20   C   release time                         
RH               8   N   relative humidity                    
RHMAN           28   N   relative humidity                    
RHSIG           48   N   relative humidity                    
RHTROP         108   N   relative humidity                    
SONDET          19   N   sonde type                           
T                5   N   air temperature                      
TD               7   N   dewpoint temperature                 
TDMAN           27   N   dewpoint temperature                 
TDSIG           47   N   dewpoint temperature                 
TDTROP         107   N   dewpoint temperature                 
TMAN            25   N   air temperature                      
TSIG            45   N   air temperature                      
TTROP          105   N   air temperature                      
TV               6   N   virtual temperature                  
TVMAN           26   N   virtual temperature                  
TVSIG           46   N   virtual temperature                  
TVTROP         106   N   virtual temperature                  
U                3   N   u wind component                     
UMAN            23   N   u wind component                     
UMXWND          83   N   u wind component                     
UTROP          103   N   u wind component                     
UWIND           63   N   u wind component                     
V                4   N   v wind component                     
VMAN            24   N   v wind component                     
VMXWND          84   N   v wind component                     
VTROP          104   N   v wind component                     
VWIND           64   N   v wind component                     
WVMR            34   N   water vapor mixing ratio
WVMRMAN         54   N   water vapor mixing ratio
WVMRSIG         74   N   water vapor mixing ratio
WVMRTROP       134   N   water vapor mixing ratio
