Precise Determination of Sediment Dynamics Using Low-cost GPS-fioaters

authored by
Markus Vennebusch, Lena Albert, Steffen Schön, Franziska Kube, Nils Goseberg, Anna Zorndt, Torsten Schlurmann, Andreas Wurpts

For many water engineering tasks, precise information about the water flow characteristics is required to model discharge and sediment transport. In many cases, the Global Positioning System (GPS) is used to measure floater trajectories and to derive flow velocities indirectly from floater positions. In this paper, we describe a new GPS-based measurement system that avoids the use of expensive equipment and which uses a direct velocity determination approach. Despite its low costs, the new floater system achieves position accuracies of several meters and accuracies of about 5 cm/s for velocities. We describe both hardware and software details of the new system. Results from a first measurement campaign show the system's capabilities for hydrometric applications.

Institute of Geodesy
Ludwig-Franzius-Institute of Hydraulics, Estuarine and Coastal Engineering
External Organisation(s)
Coastal Defence and Nature Conservation Agency (NLWKN)
Conference contribution
No. of pages
Publication date
Publication status
Peer reviewed
ASJC Scopus subject areas
Software, Computer Science Applications, Electrical and Electronic Engineering
Electronic version(s) (Access: Unknown) (Access: Unknown)

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