100 = 4 = Coarse mode 5 Selects the dominant large Large Mode 011 = 3 = Coarse mode 4 mode aerosol model (largest Aerosol 010 = 2 = Coarse mode 3 number of pixels involved in Model 3 001 = 1 = Coarse mode 2 the EDR aggregation) over (ocean) 000 = 0 = Coarse mode 1 ocean; See AOT ATBD for all (QF5.2) 111 = 7 = NA (no ocean) model details 2 Spare bits Suspended Matter Quality Table C.3 Suspended Matter Quality Flags QF1-3 QF1 Flag Values Bits Conditions Notes Pixel SM type quality is from Aerosol IP product, it is set by default to the High: Pixel SM type quality AOT quality is good Suspended (see Table C.1 for 11 = 3 = High Medium: Pixel SM type Matter conditions) and then 10 = 2 = Medium quality is degraded Detection changed under the 01 = 1 = Low 2 Low: SM type quality Product following conditions: 00 = 0 = Not is excluded Quality Excluded: AOT at Produced Not Produced: Pixel SM (QF1.1) 550 nm < 0.5 type quality is not Good: If volcanic ash produced is detected, SM type quality is reset to good no matter what the AOT quality is High: Pixel SM type quality Pixel SM type quality is good and "Low AOT, SM is from Aerosol IP Suspended 11 = 3 = High Typing Excluded" flag is product, it is set by Matter Type 10 = 2 = Medium not set (AOT at 550 nm default to the ≤ Product 01 = 1 = Low 2 0.15 (no SM) or AOT at 550 AOT quality and Quality 00 = 0 = Not nm 1.0) then changed under ≥ (QF1.2) Produced Medium: Pixel SM type the following quality is degraded and conditions:
Large Mode Aerosol Model (ocean) (QF5.2) 100 = 4 = Coarse mode 5 011 = 3 = Coarse mode 4 010 = 2 = Coarse mode 3 001 = 1 = Coarse mode 2 000 = 0 = Coarse mode 1 111 = 7 = NA (no ocean) 3 Selects the dominant large mode aerosol model (largest number of pixels involved in the EDR aggregation) over ocean; See AOT ATBD for all model details 2 Spare bits Suspended Matter Quality Table C.3 Suspended Matter Quality Flags QF1-3 QF1 Flag Values Bits Conditions Notes Suspended Matter Detection Product Quality (QF1.1) 11 = 3 = High 10 = 2 = Medium 01 = 1 = Low 00 = 0 = Not Produced 2 High: Pixel SM type quality is good Medium: Pixel SM type quality is degraded Low: SM type quality is excluded Not Produced: Pixel SM type quality is not produced Pixel SM type quality is from Aerosol IP product, it is set by default to the AOT quality (see Table C.1 for conditions) and then changed under the following conditions: Excluded: AOT at 550 nm < 0.5 Good: If volcanic ash is detected, SM type quality is reset to good no matter what the AOT quality is Suspended Matter Type Product Quality (QF1.2) 11 = 3 = High 10 = 2 = Medium 01 = 1 = Low 00 = 0 = Not Produced 2 High: Pixel SM type quality is good and "Low AOT, SM Typing Excluded" flag is not set (AOT at 550 nm ≤ 0.15 (no SM) or AOT at 550 nm ≥ 1.0) Medium: Pixel SM type quality is degraded and Pixel SM type quality is from Aerosol IP product, it is set by default to the AOT quality and then changed under the following conditions:
VIIRS_Aerosol_ATBD_revision_v8.docx