The role of the Lagrangian mean flow, or drift, in modulating the geometry, kinematics and
dynamics of rotational and irrotational deep-water surface gravity waves is examined. A …

Predicting the trajectories of buoyant objects drifting at the ocean surface is important for a
variety of different applications. To minimize errors in predicted trajectories, the dominant …

To assess the contribution of wind drag and Stokes drift on the near-surface circulation, a
methodology to isolate the geostrophic surface current from high-frequency radar data is …

This study evaluates shipboard marine X‐band radar (MR) near‐surface current and
bathymetry measurements under shallow water conditions. The retrieval algorithm is based …

In this chapter we review methods by which near--surface ocean currents can be measured
remotely using images of the water surface, as obtained by X-band radar in particular. The …

High-frequency radars (HFR) remotely measure ocean surface currents based on the
Doppler shift of electromagnetic waves backscattered by surface gravity waves with one-half …

Abstract Two Ocean State Monitoring and Analyzing Radar (OSMAR071)(7.8 MHz) high-
frequency (HF) radars and four moored ADCPs were operated concurrently in the …

Uncertain parameters in a 3D barotropic circulation model of the German Bight are
estimated with a variational optimisation approach. Surface current measurements from a …

Several hundred thousand tonnes of plastic waste enter the Indian Ocean (IO) every year,
with an unknown fate. This thesis examines mechanisms that transport and accumulate …

High frequency (HF) radars measure ocean surface currents by sending electromagnetic
(EM) waves in the HF radio band (3-30 MHz) and recording the EM waves backscattered by …