Satellite Imagery
Chlorophyll Concentration
Attention Google Earth users: Sea Surface Temperature .kmz files for selected regions are now available here. Learn more about Google Earth at http://earth.google.com It is free to download and easy to use.
Sea Surface Temperature
Alabama
Bahamas
Northeast
Cape Cod
Cape Hatteras
Chesapeake Bay
Eastcoast
EDDIES Project
Florida Current
Florida Coast
Georgia Coast
Gulf of Mexico
Gulf Stream
JCNERRS
Latte
Leo-15
Louisiana
Maine
North Mid-Atlantic Bight
New York Bight (Ft)
New York Bight (M)
SHAREM Project
Southern New England
Mid-Atlantic Bight
Hudson Canyon Zoom
 
Sea Surface Temperature Daily Composite
Northeast
Eastcoast
Gulf of Mexico
Gulf Stream
 
Chlorophyll Concentration
Northeast
Gulf of Mexico
JCNERRS
Latte
North Mid-Atlantic Bight
New York Bight (M)
 
De-clouded 3-Day Average Sea Surface Temps
Northeast
 
MODIS-AQUA Absorption Products (APS)
Northeast
Latte
New York Bight (M)
 
De-clouded 8-Day Average Sea Surface Temps
Northeast
 
Sea Surface Temperature Codar Overlays
Northeast
Latte
 
De-clouded Sea Surface Temperatures
Northeast
 
MODIS-AQUA Backscatter Products (APS)
Northeast
Latte
New York Bight (M)
 





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Real Time and Archived Satellite Imagery
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Available Regions:
Northeast
Gulf of Mexico
JCNERRS
Latte
North Mid-Atlantic Bight
New York Bight (M)

A few notes on the Chlorophyll Concentration Image Archive

There are currently 3 different Ocean Color products posted on this website from 2 different satellite sensors. The first of which is Chlorophyll concentration calculated from Ocean Color Monitor (OCM) data collected via India's Oceansat satellite. This data is the highest resolution satellite measured chlorophyll data available and is at a 360m resolution. The chlorophyll algorithm used is based on the SeaWiFS OC4 algorithm. The second product is Chlorophyll concentration calculated from the MODIS data collected via the US Aqua satellite. These imagery are at a resolution of 1km. The third product we call "ocean color". These images are created using data collected by China's FY1-D satellite. We record approximately 2 of these passes per day with our L-Band satellite dish. The FY1-D satellite has 10 channels in the visible and infrared spectrum and provides us with 1km resolution data.

The product generated is what we call "relative chlorophyll concentration". The Chinese space agency has yet to release the calibration data for this satellite, therefore it is not possible for us to compute actual chlorophyll concentration values. We can, however, through a simple ratio of blue and green channels, compute a very rough, relative estimate of chlorophyll that allows us to see spatial patterns. Red areas are indicative of murky green water, while blue areas represent clearer, bluer water.

The raw satellite data is processed to our "relative chlorophyll" product by ratioing channel 9:channel 7 (green:blue) with SeaSpace Terascan software. Our data is stored in an HDF file format and is plotted using Matlab.

The US coastline (drawn in black) is taken from the NOAA Coastline Extractor database (World Vector Shoreline 1:250,000). Bathymetry (also drawn in black) is obtained from the Smith and Sandwell Bathymetric dataset and units are in feet. Most images have the edge of the continental shelf (600 feet or 100 fathoms or ~200 meters) drawn.

All time stamps are in Greenwich Mean Time (GMT) which is 4 hours ahead of Eastern Standard Time from March to November and 5 hours ahead the rest of the year (daylight savings time is not observed in England).


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