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Whitepaper > Shelf Circulation Patterns Observed From Davis Drifter Off the Eastern Niger Delta in the Gulf of Guinea

Shelf Circulation Patterns Observed From Davis Drifter Off the Eastern Niger Delta in the Gulf of Guinea

Organisation: Nigerian Institute for Oceanography and Marine Research

The eastern Niger Delta in Nigeria stretches from the Akasa River eastwards to the Calabar estuary along the Nigeria Cameroon border. As part of a current measurement survey off the Niger Delta, a Davies drifter was deployed off Sangana River. The Davies drifter drifted for a total of about 51 days and exposed a trajectory which traversed the inner shelf to the open shelf. The trajectory showed several reversals and gyral patterns which indicate across and alongshelf circulation system. Though the alongshelf seem to be more pronounced, the records depict the oscillatory nature of the circulation and transport system in the Gulf of Guinea notch of the east central Atlantic.

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Demo of RIEGL Airborne Bathy Scanner in Camcopter UAV

It's not an AUV but an UAV. So an unmanned vehicle, but in the air instead of underwater. This movie shows a demonstration of the bathymetric laser scanning capabilities of the RIEGL VQ-820-GU hydrographic airborne sensor in reality. For more information on the technical side, please see the news release on Hydro International.

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