TOPEX/Poseidon
TOPEX/Poseidon was a joint mission between NASA and CNES to map ocean surface topography with high accuracy using radar altimetry. The mission was launched in 1992 and operated until 2006, providing valuable data on ocean circulation, climate change, and sea level rise. TOPEX/Poseidon was the first satellite to measure ocean topography with such precision, and its success paved the way for future oceanography missions such as Jason-1 and Jason-2. The satellite orbited the Earth at an altitude of 1,336 kilometers and made measurements of the ocean surface every 10 days, allowing scientists to track changes in sea level over time. The data collected by TOPEX/Poseidon has been used to improve weather forecasting, study ocean currents and eddies, and monitor the effects of climate change on the world's oceans.
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