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Estimating surface currents in the slope water region between 37° and 41°N using satellite feature tracking
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1992
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Description:In support of NOAA's COASTWATCH requirements, an effort is underway to develop a capability to estimate surface currents in coastal areas around the United States using sequential Advanced Very High Resolution Radiometer infrared (AVHRR IR) satellite imagery from NOAA's Polar-Orbiting satellites. The technique is referred to as "feature tracking", and as the name implies, the locations of selected ocean features (in this case thermal features) are tracked from one image to the next from co-registered image pairs. Displacements can be calculated by locating features in successive images and calculating the corresponding separation distance. Once the displacements have been determined, it is straightforward to calculate the velocities based on the time interval between the images.
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Rights Information:CC0 Public Domain
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Compliance:Library
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