NOAA Office of Satellite and Product Operations

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
10/21/2017
10/20/2017
10/19/2017
Northeast (NE)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Southeast (SE)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Gulf of Mexico (GM) Albers Projection
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Gulf of Mexico (GM) Mercator Projection
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Carribbean (CB)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
West Coast (WC)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Alaska (AK)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
East Tropical Pacific (EP)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Equatorial Atlantic (EA)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Great Lakes (GL)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Hawaii (HI)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
North Atlantic (NA)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Pacific Basin (PB)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292
Chesapeake Bay (CY)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2017294
PdailyMean_ModisAquaSwirNirKd490 Day 1
2017293
PdailyMean_ModisAquaSwirNirKd490 Day 2
2017292