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
04/30/2016
04/29/2016
04/28/2016
Northeast (NE)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Southeast (SE)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
  
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Gulf of Mexico (GM) Albers Projection
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Gulf of Mexico (GM) Mercator Projection
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Carribbean (CB)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
West Coast (WC)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
  
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Alaska (AK)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
East Tropical Pacific (EP)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Equatorial Atlantic (EA)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Great Lakes (GL)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Hawaii (HI)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
North Atlantic (NA)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
  
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Pacific Basin (PB)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
  
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119
Chesapeake Bay (CY)
Granules
PdailyMean_ModisAquaSwirNirKd490 Day 0
2016121
PdailyMean_ModisAquaSwirNirKd490 Day 1
2016120
PdailyMean_ModisAquaSwirNirKd490 Day 2
2016119