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Satellite measurements of Sea Surface Temperature often reveal cooler water from offshore ocean depths temporarily displacing warmer coastal surface layers. These waters may carry nutrients that enable the growth of chlorophyll bearing species of marine biota that ultimately support higher levels of the food chain. Evidence suggests that upwelling is driven by southerly winds parallel to Eastern North Carolina coast line. While wind driven upwelling events have been detected along the North Carolina coast line; a correlation with the production of chlorophyll species production has not yet been made. The magnitude of chlorophyll bearing species production can be estimated by measuring the relative radiance of in reflected sunlight from the oceans surface in different spectral bands. Measurements of reflected sunlight radiance at appropriate spectral bands have been made by the Sea viewing Wide Field of view (SeaWiFS) Sensor aboard the NASA-OrbImage SeaStar satellite. The team will import the SeaDAS software to enable analysis of data for the summers of 2000 and 2003 during which upwellings are known to have occurred and determine whether a correlation can be established between Chlorophyll a levels and SST in coastal waters. |
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