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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. 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

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  1. MODIS Active Fire Products: Collection 5 Changes L. Giglio and C. Justice MODIS Land Collection 5 Workshop 17 January 2007

  2. 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

  3. Collection 4 2001001

  4. Collection 5 2001001

  5. 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

  6. 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

  7. Level 3 8-Day • MOD14A2, MYD14A2 • Simplified per-pixel QA • Revamped global metadata • Rationalized SDS names • HDF compression • HDF-EOS

  8. CMG • MOD14C8H, MYD14C8H, MOD14CMH, MYD14CMH • 0.25° spatial resolution (up from 0.5° for Collection 4) • MOD14CMQ, etc. • Additional data layers

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