NOAA Office of Satellite and Product Operations

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MODIS / Aqua Chlorophyll Front Products

Chlorophyll (named as Chl for clarity) fronts are biogeographical/ecosystem boundaries associated with zones of elevated primary and secondary productivity and fisheries. Variability in the strength and location of chlorophyll fronts affects key living marine resources, such as demersal and pelagic fish, squid, shrimp, lobster, shellfish, and marine mammals. Chlorophyll frontal products here are generated from Okeanos MODIS/Aqua chlorophyll products by using the Belkin-O'Reilly Algorithm (BOA) and the Stripe Noise Reduction Algorithm (SNRA). The products include daily-mean and granule chlorophyll gradient magnitude, and granule chlorophyll gradient direction over nine CoastWatch Regions-of-Interest, i.e., Northeast (NE), Southeast (SE), Gulf of Mexico (GM), Caribbean (CB), West Coast (WC), Alaska (AK), Great Lakes (GL), East Tropical Pacific (EP), Hawaii (HI).

Chlorophyll Gradient Magnitude
Region
04/23/2018
04/22/2018
04/21/2018
Alaska (AK)
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111
Carribbean (CB)
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111
East Tropical Pacific (EP)
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111
Great Lakes (GL)
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111
Gulf of Mexico (GM) Mercator Projection
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111
Hawaii (HI)
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111
Northeast (NE)
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111
Southeast (SE)
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111
West Coast (WC)
Granules
PdailyMean_ModisAquaChlaGradMag Day 0
2018113
PdailyMean_ModisAquaChlaGradMag Day 1
2018112
PdailyMean_ModisAquaChlaGradMag Day 2
2018111