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About HotSpots Charts, LLC Sea Surface Temperature Charts What Is A HotSpots Charts, LLC SST Chart? HotSpots Charts, LLC Sea Surface Temperature Charts display temperatures and thermal boundaries in offshore waters. How Can A HotSpots Charts, LLC SST Chart Help My Offshore Fishing? HotSpots Charts, LLC SST Charts are designed to make it easy for fishermen to see what the water temperature conditions are at their favorite offshore fishing points. The locations of reefs, Navy towers, and significant bottom contours are clearly marked. Water temperature "structures", such as rips, fingers, warm and cold eddies, are clearly marked. More information on using HotSpots Charts, LLC SST charts for blue water fishing. More information on using HotSpots Charts, LLC SST charts for green water fishing. How Are HotSpots Charts, LLC SST Charts Created? STEP 1: GETTING THE TEMPERATURE DATA HotSpots Charts, LLC reads temperature data directly from NOAA polar orbiter satellites using a satellite dish and specialized software. HotSpots Charts, LLC uses HRPT (high resolution picture transmission) data, available only from NOAA polar orbiter satellites. This data is accurate to within 1/10th of a degree Celsius, and averages temperatures across 1 square kilometer. Currently (spring, 2001) there are three polar orbiter satellites transmitting usable temperature data. Each polar orbiter satellite passes over the US east coast once every twelve hours, providing data early and midmorning, and early and midafternoon. The temperature sensors on the polar orbiters cannot "see" through cloud cover, so when there is cloud cover over an offshore area, there is no usable temperature data with which to create an SST chart for that area. STEP 2: CREATING SST CHARTS FROM SATELLITE DATA Any water vapor present in the atmosphere when the satellite passes over will cause the satellite to report temperatures cooler than the actual surface temperatures. Software written by HotSpots Charts, LLC corrects these temperatures using additional data reported by the satellite. (As noted above, sensors on the polar orbiter satellites cannot read surface temperatures through clouds. On cloudy days there is no temperature data for HotSpots Charts, LLC to process.) Software written by HotSpots Charts, LLC is used to "clean up" the satellite image, clarifying temperature boundaries. Software written by HotSpots Charts, LLC plots thermal boundary lines and temperature labels on a chart showing the locations of these boundaries.

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