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Concept
Jason-3
Summary
Jason-3 is a satellite altimeter created by a partnership of the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) and National Aeronautic and Space Administration (NASA), and is an international cooperative mission in which National Oceanic and Atmospheric Administration (NOAA) is partnering with the Centre National d'Études Spatiales (CNES, French space agency). The satellite's mission is to supply data for scientific, commercial, and practical applications to sea level rise, sea surface temperature, ocean temperature circulation, and climate change.
Jason-3 makes precise measurements related to global sea-surface height. Because sea surface height is measured via altimetry, mesoscale ocean features are better simulated since the Jason-3 radar altimeter can measure global sea-level variations with very high accuracy. The scientific goal is to produce global sea-surface height measurements every 10 days to an accuracy of less than 4 cm. In order to calibrate the radar altimeter, a microwave radiometer measures signal delay caused by atmospheric vapors, ultimately correcting the altimeter's accuracy to 3.3 cm. This data is important to collect and analyze because it is a critical factor in understanding the changes in Earth's climate brought on by global warming as well as ocean circulation. NOAA's National Weather Service uses Jason-3's data to more accurately forecast tropical cyclones.
The primary users of Jason-3 data are people who are dependent on marine and weather forecasts for public safety, commerce and environmental purposes. Other users include scientists and people who are concerned with global warming and its relation to the ocean. National Oceanic and Atmospheric Administration (NOAA) and European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) are using the data primarily for monitoring wind and waves on the high seas, hurricane intensity, ocean surface currents, El Niño and La Niña forecasts, water levels of lakes and rivers.
Official source
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