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25.01.2023 10:28 Age: 11 days

First waveforms over river from the nadir altimeter on SWOT

Category: News of the Swot mission

After a successful launch on Dec. 16, 2022, the Poseidon-3C nadir altimeter onboard the Swot satellite has started delivering its first measurements, on rivers & lakes too.

Zoom on the figure below over the Litani river & a single waveform extracted from it, typical of what can be acquired on such rivers (Credit Cnes (Sophie Le Gac & Alexandre Guérin))

Series of waveforms (colored areas) acquired by Swot nadir altimeter, Poseidon-3C, over several rivers in the Maroni basin in French Guiana, South America, on January 20, 2023. (Credit Cnes (Sophie Le Gac & Alexandre Guérin))

After a successful launch on Dec. 16, 2022, the Poseidon-3C nadir altimeter onboard the Swot satellite has started delivering its first measurements.

The colored images on this map show the waveforms sucessfully acquired by Poseidon-3C over several rivers in the Maroni basin in French Guiana, on January 20, 2023.

These waveforms show the already excellent tracking performances of Poseidon-3C in orbit. 

This first result is very promising for the upcoming commisionning phase of this new nadir altimeter!

I-GDR data have been processed through the Cnes Swot Expertise Center. 

 


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