NOAA Office of Satellite and Product Operations

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MODIS / Aqua NIR-SWIR Ocean Color Products

The MODIS/Aqua NIR-SWIR ocean color products are derived by using the shortwave infrared (SWIR)-based atmospheric correction algorithm developed by the NOAA/NESDIS Center for Satellite Applications and Research (STAR). The products include chlorophyll concentration, remote sensing reflectance at 667 nm, water attenuation coefficient at 490 nm over 12 CoastWatch Regions-of-Interest, i.e., Northeast (NE), Southeast (SE), Gulf of Mexico (GOM), Caribbean (CB), West Coast (WC), Alaska (AK), East Tropical Pacific (EP), Equatorial Atlantic (EA), Great Lakes (GL), Hawaii (HI), North Atlantic (NA), and Pacific Basin (PB).

Water attenuation coefficient (Kd490) defines the presence of light (downwelling irradiance) versus depth, the depth of euphotic zone, and ultimately the maximum depth of primary production.

Water Attenuation Coefficient at 490 nm: Daily Mean
Region
08/14/2018
08/13/2018
08/12/2018
Northeast (NE)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Southeast (SE)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Gulf of Mexico (GM) Albers Projection
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Gulf of Mexico (GM) Mercator Projection
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Carribbean (CB)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
West Coast (WC)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Alaska (AK)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
East Tropical Pacific (EP)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Equatorial Atlantic (EA)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Great Lakes (GL)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Hawaii (HI)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
North Atlantic (NA)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Pacific Basin (PB)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224
Chesapeake Bay (CY)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2018226
PdailyMean_ModisAquaSwirNirKd490 Day 1
2018225
PdailyMean_ModisAquaSwirNirKd490 Day 2
2018224