Hi,

I want to display the precipitation for one day, but I found the unit for "tpr" is "mm/day", and there are 8 times output everyday ( the interval is 3h), so, why some variables like "tpr, evp runoff" unit set with "mm/day" which also has values for each time in output? how to use it? Thank you.
this is my data description :
ga-> q file
File 1 : RegCM normal output variables
Descriptor: SRF.1998070100.ctl
Binary: SRF.1998070100
Type = Gridded
Xsize = 383 Ysize = 216 Zsize = 1 Tsize = 248 Esize = 1
Number of Variables = 27
     u10m 0 33,105 westerly wind at 10m (m/s)
     v10m 0 34,105 southerly wind at 10m (m/s)
     uvdrag 0 99 surface drag stress
     tg 0 99 ground temperature (degree)
     tlef 0 99 temperature of foliage
     t2m 0 99 air temperature at 2m (K)
     q2m 0 99 water vapor mixing ratio at 2m(kg/kg
     ssw 0 99 upper layer soil water
     rsw 0 99 root zone soil water
     tpr 0 99 total precipitation (mm/day)
     evp 0 99 evapotranspiration (mm/day)
     runoff 0 99 surface runoff (mm/day)
     scv 0 99 total snow amount
     sena 0 99 sensible heat flux (W/m2)
     flw 0 99 net infrared energy flux (W/m2)
     fsw 0 99 net absorbed solar energy flux (W/m2
     flwd 0 99 downward infrared energy flux (W/m2)
     sina 0 99 incident solar energy flux (W/m2)
     prcv 0 99 convective precipitation (mm/day)
     psb 0 99 surface pressure (hPa)
     zpbl 0 99 PBL layer height
     tgmax 0 99 maximum ground temperature (K)
     tgmin 0 99 minimum ground temperature (K)
     t2max 0 99 maximum 2m air temperature (K)
     t2min 0 99 minimum 2m air temperature (K)
     w10max 0 99 maximum 10m wind speed (m/s)
     ps_min 0 99 minimum surface pressure (hPa)
ga->

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Shenghui Student
Major: Physics
HuNan University China