Satellite Imagery
Sea Surface Temperature Codar Overlays
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

with CODAR Surface Current Overlays


Available Regions:
Northeast
Latte

Satellite Orbits

The data on this web page are collected from the NOAA-15, 17, and 18 satellites. To see where the satellites are located in their orbits click HERE

A few notes on the Sea Surface Temperature Codar Overlays Image Archive

The images in this database are from the Advanced Very High Resolution Radiometer (AVHRR instrument). Overlayed on top of the satellite data are surface currents calculated using our long range CODAR ocean Radar system . Arrows indicate speed and direction of the surface currents. Satellite imagery represents sea surface temperature.

We record approximately 9 AVHRR passes per day with our L-Band satellite dish and CODAR files are updated every 3 hours. Images are only updated when there is a satellite image to overlay the CODAR vectors on.

The raw satellite data is processed to sea surface temperature using the Multi-channel Sea Surface Temperature (MCSST) algorithm using SeaSpace Terascan software. For more information on this algorithm check out the primer written by our collegue Dr. Frank Monaldo at Johns Hopkins University. Our data is stored in an HDF file format and is plotted using Matlab. The AVHRR sensor has a spectral resolution of 5 channels in the visible and infrared spectrum. The spatial resolution of the data is 1km.

CODAR works by a transmitter sending out a radio frequency that bounces off the ocean surface and back to a receiver antenna. Using this information and the principles of the Doppler shift, CODAR is able to calculate the speed and direction of the surface current. These calcuations are made about every half mile across the surface and extend as far as about twenty miles offshore.

The US coastline (drawn in black on SST/CODAR plots) 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 based on the latest CODAR file and are in Greenwich Mean Time (GMT). GMT 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).

In many of the images you will notice large light violet areas. These are either cloudy areas that were not cold enough to be eliminated by the computer, or areas that are outside of the temperature scale. As you see more and more images, you will learn the difference. Finally, these images were navigated using the predicted satellite position, which may be slighty in error, resulting in a shift of the coastline. Exact navigation requires human intervention.


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