Surfzone monitoring using rotary wing unmanned aerial vehicles

Surfzone monitoring using rotary wing unmanned aerial vehicles

Brouwer, R.L.
De Schipper, M.A.
Rynne, P.F.
Graham, F.J.
Reniers, A.J.H.M.
Macmahan, J.H.

Civil Engineering and Geosciences

Hydraulic Engineering

2015-04-30

This study investigates the potential of rotary wing unmanned aerial vehicles (UAVs) to monitor the surfzone. This paper shows that these UAVs are extremely flexible surveying platforms that can gather nearcontinuous moderate spatial resolution and high temporal resolution imagery from a fixed position high above a study site. The rotary wing UAVs used in this study can fly for ;12 min with a mean loiter radius of 1–3.5m and a mean loiter error of 0.75–4.5 m. These numbers depend on the environmental conditions, flying style, battery type, and vehicle type. The images obtained from the UAVs, and in combination with surveyed ground control points (GCPs), can be georectified to a pixel resolution between 0.01 and 1m, and a reprojection error—that is, the difference between the surveyed GPS location of a GCP and the location of the GCP obtained from the georectified image—of O(1 m). The flexibility of rotary wing UAVs provides moderate spatial resolution and high temporal resolution imagery, which are highly suitable to quickly obtain surfzone and beach characteristics in response to storms or for day-to-day beach safety information, as well as scientific pursuits of surfzone kinematics on different spatial and temporal scales, and dispersion and advection estimates of pollutants.

http://resolver.tudelft.nl/uuid:51a3948d-8bb1-4a2f-bcc1-c4b0f29f6e47

American Meteorological Society

2015-10-30

0739-0572

Journal of atmospheric and oceanic technology, 32 (4), 2015

Institutional Repository

journal article

(c) 2015 American Meteorological Society