Selected Plevel File Structure (Pl)

 File data type = 32 bit IEEE

All records consist of ix*iy real words, where ix, iy are the number of longitudes and latitudes respectively, in this case ix,iy = 128,64 for t42.

First longitude starts at the Greenwich meridian and the logitudes are evenly spaced going west to east. Latitudes are Gaussian, going north to south.

For more information regarding GCM details see v197 technical documentation located at http://www.gfdl.gov/~wfs/gfdlsm/DocGFDLSM_v197.html

quantity         level(hPa)       rec. #      units 

      PSI              200               1         m2 sec-1 

      PSI              850               2         m2 sec-1 

      CHI              200               3         m2 sec-1 

      CHI              850               4         m2 sec-1 

      U                200               5         m sec-1 

      U                850               6         m sec-1 

      V                200               7         m sec-1 

      V                850               8         m sec-1 

      T                200               9         Deg C 

      T                850               10        Deg C 

      T                2m                11        Deg C  

      qmix             200               12        g kg-1 

      qmix             850               13        g kg-1 

      Z                200               14        m 

      Z                300               15        m 

      Z                500               16        m 

      Z                700               17        m 

      Z                850               18        m 

      P                Sea-level         19        N m-2 (Pa) 

      T                Surface           20        Deg C  

      Soil Moisture    Surface           21        0.1xkg m-2(cm)

      Snow Mass        Surface           22        kg m-2