NOAA Office of Satellite and Product Operations

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MODIS / Aqua NASA L2gen NIR Ocean Color Products

The MODIS/Terra ocean color products are derived by using the NASA L2gen SeaDAS codes based on Near-Infrared (NIR) atmospheric correction algorithm. The products include chlorophyll concentration and remote sensing reflectance at 667 nm over 2 CoastWatch Regions-of-Interest, i.e., Gulf of Mexico (GOM) and Hawaii (HI).

Chlorophyll concentration provides an estimate of the live phytoplankton biomass in the surface layer. It is also referred to as the amount of the green pigment chlorophyll. The chlorophyll anomaly is generated when today's chlorophyll concentration data is compared to the bi-monthly mean. A positive anomaly indicates new algal growth. Bi-monthly mean values are averages calculated over 61 days.

Daily Mean (w/Granules)  |  Anomaly  |  Bimonthly Mean

Chlorophyll Concentration (Chl-a): Bimonthly Mean
Region
Month A
Month B
Month C
Northeast (NE)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Southeast (SE)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Gulf of Mexico (GM) Albers Projection
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Gulf of Mexico (GM) Mercator Projection
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Carribbean (CB)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
West Coast (WC)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Alaska (AK)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
East Tropical Pacific (EP)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Equatorial Atlantic (EA)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Great Lakes (GL)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Hawaii (HI)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
North Atlantic (NA)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133
Pacific Basin (PB)
PbiMonthModisAquaNirChlA Day 0
2018193
PbiMonthModisAquaNirChlA Day 1
2018163
PbiMonthModisAquaNirChlA Day 2
2018133