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Drone usage for Rivers

Inverse problem

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December 08, 2019

What´s beneath the following flow pattern ? Drone zenithal view subsequently vectorized with LSPIV.

You´ve got it; just this groyne when submerged flow
begins !

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Optical processing can assist to define bathymetry:

July 17, 2019

Shallow flows with relatively transparent water, captured by 4K camera drones and filtered by computer, can help to define the bathymetry without more expensive data acquisition. See this example nearby "Sotos del Ebro, Alfaro".

Monitoring plastic litter and debris:

September 13, 2019

Drones make easier to recognize surface speed patterns and debris storage areas in order to clean up plastic litter , as this image of Alcala de Ebro groynes shows. See more at The Ocean Clean Up project and https://doi.org/10.3390/rs11172045