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MODIS Active Fire Products: Collection 5 Changes. L. Giglio and C. Justice MODIS Land Collection 5 Workshop 17 January 2007. Level 2 Products. MOD14, MYD14 No significant changes to detection algorithm Bug fix Switch between channels 21 & 22 not always performed properly

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modis active fire products collection 5 changes

MODIS Active Fire Products: Collection 5 Changes

L. Giglio and C. Justice

MODIS Land Collection 5 Workshop

17 January 2007

level 2 products
Level 2 Products
  • MOD14, MYD14
  • No significant changes to detection algorithm
  • Bug fix
    • Switch between channels 21 & 22 not always performed properly
    • Occasionally missed small/cool fires in C4
  • Change in calculation of detection confidence
    • Better flagging of questionable fire pixels
  • Internal CMG-related changes
level 3 daily 1 of 2
Level 3 Daily (1 of 2)
  • MOD14A1, MYD14A1
  • Complete code rewrite
    • Pre-launch code used up to C5!
  • Simplified per-pixel QA
  • Additional data layers
    • FRP, within-swath sample
  • Revamped global metadata
level 3 daily 2 of 2
Level 3 Daily (2 of 2)
  • Rationalized SDS names
    • “most confident detected fire” --> “FireMask”
  • HDF compression
    • C5 products < 2% size of C4 products, yet contain more information
  • HDF-EOS
level 3 8 day
Level 3 8-Day
  • MOD14A2, MYD14A2
  • Simplified per-pixel QA
  • Revamped global metadata
  • Rationalized SDS names
  • HDF compression
  • HDF-EOS
slide9
CMG
  • MOD14C8H, MYD14C8H, MOD14CMH, MYD14CMH
  • 0.25° spatial resolution (up from 0.5° for Collection 4)
    • MOD14CMQ, etc.
  • Additional data layers