Skip to content. | Skip to navigation

Personal tools
You are here: GES DISC Home Precipitation Documentation TRMM_README Untitled Document

Untitled Document

3B42 Version 6 and Version 5 Quick Comparison


3B42 README     |     3B42 Data Access     |     3B42 Algorithm

3B42 File Format Quick Comparison
V6 SDS Array List V5 SDS Array List

       SDS Name        SDS Dimensions
      ---------------- --------------
   1) precipitation    1   1440   400 
   2) relativeError    1   1440   400 
       

      SDS Name         SDS Dimensions
      ---------------- --------------
   1) percipitate      1    360    80 
   2) relError         1    360    80
       
V6 Vdata List V5 Vdata List

      Vdata Name     rec_num rec_size
      -------------- ------- --------
   1) GridStructure        1      651 
   2) scan                 1        4 
   3) scan                 1        4 
   4) longitude            1        4 
   5) longitude         1440        4 
   6) latitude             1        4 
   7) latitude           400        4 
   8) CoreMetadata.0       1     5607 
   9) ArchiveMetadata.0    1     7902 
          

      Vdata Name     rec_num rec_size
      -------------- ------- --------
   1) GridStructure        1      647 
   2) scan                 1        4 
   3) scan                 1        4 
   4) longitude            1        4 
   5) longitude          360        4 
   6) latitude             1        4 
   7) latitude            80        4 
   8) CoreMetadata.0       1     5602 
   9) ArchiveMetadata.0    1     7906
          

Major Changes in 3B42 Algorithm for Product Version 6

  • Geographic Coverage: 50°S - 50°N  (V5: 40°S - 40°N).
  • Horizontal Resolution:  0.25° x 0.25°  (V5: 1° x 1°).
  • Temporal Resolution:   3-hour  (V5: daily).

Back to TRMM README main page

Document Actions
NASA Logo - nasa.gov
NASA Privacy Policy and Important Notices
Last updated: Sep 18, 2009 10:32 AM ET
Top