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You are here: GES DISC Home Precipitation Documentation TRMM_README 2B31 Version 6 and Version 5 Quick Comparison

2B31 Version 6 and Version 5 Quick Comparison

2B31 Version 6 and Version 5 Quick Comparison


2B31 README     |     2B31 Data Access     |     2B31 Algorithm

2B31 File Format Quick Comparison
V6 SDS Array List V5 SDS Array List

      SDS Name      SDS Dimensions
      ------------  ------------------
   1) geolocation   9141     49      2   
   2) dHat          9141     49 
   3) sigmaDHat     9141     49 
   4) rHat          9141     49     80 
   5) sigmaRHat     9141     49     80 
   6) rrSurf        9141     49 
   7) sigmaRRsurf   9141     49 
   8) latentHeatHH  9141     49     13 
   9) spare         9141     49      4 
       

      SDS Name      SDS Dimensions
      ------------ ------------------
   1) geolocation  9140     49      2 
   2) dHat         9140     49 
   3) sigmaDHat    9140     49 
   4) epsilon      9140     49 
   5) sigmaEpsilon 9140     49 
   6) rHat         9140     49     80 
   7) sigmaRHat    9140     49     80 
   8) pia          9140     49 
   9) sigmaPIA     9140     49 
  10) tmiPIA       9140     49 
  11) sigmaTMIpia  9140     49 
  12) rrSurf       9140     49 
  13) sigmaRRsurf  9140     49 
       
V6 Vdata List V5 Vdata List

       Vdata Name       rec_num rec_size
       ---------------- ------- --------
   1)  scan_time         9141         8 
   2)  pr_scan_status    9141        15 
   3)  pr_navigation     9141        88 
   4)  SwathStructure       1        57 
   5)  scan                 1         4 
   6)  scan                 1         4 
   7)  ray                  1         4 
   8)  ray                 49         4 
   9)  latlon               1         4 
  10)  latlon               2         4 
  11)  height               1         4 
  12)  height              80         4 
  13)  calibrated_nt        1         4 
  14)  calibrated_nt        1         4 
  15)  calibrated_nt        1         4 
  16)  calibrated_nt        1         4 
  17)  calibrated_nt        1         4 
  18)  CoreMetadata.0       1    >10000 
  19)  ArchiveMetadata.0    1    >10000 
        

      Vdata Name        rec_num rec_size
      ----------------  ------- --------

   1)  scan_time          9140         8   
   2)  pr_scan_status     9140        15 
   3)  pr_navigation      9140        88 
   4)  SwathStructure        1        57 
   5)  scan                  1         4 
   6)  scan                  1         4 
   7)  ray                   1         4 
   8)  ray                  49         4 
   9)  latlon                1         4 
  10)  latlon                2         4 
  11)  height                1         4 
  12)  height               80         4 
  13)  calibrated_nt         1         4 
  14)  calibrated_nt         1         4 
  15)  calibrated_nt         1         4 
  16)  calibrated_nt         1         4 
  17)  calibrated_nt         1         4 
  18)  calibrated_nt         1         4 
  19)  calibrated_nt         1         4 
  20)  calibrated_nt         1         4 
  21)  calibrated_nt         1         4 
  22)  calibrated_nt         1         4 
  23)  calibrated_nt         1         4 
  24)  CoreMetadata.0        1    >10000 
  25)  ArchiveMetadata.0     1    >10000 
    

Major Changes in 2B31 Algorithm for Version 6

The following SDS array is added in V6:
  • Latent Heating.

The following SDS arrays are removed from V5:
  • epsilon
  • sigmaEpsilon
  • pia
  • sigmaPIA
  • tmiPIA
  • igmaTMIpia
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