On the calculation of particle trajectories from sea surface current measurements and their use in satellite sea surface products off the Central California Coast
Spence, Luke J.
MetadataShow full item record
This thesis explores the possibility and feasibility of improving existing satellite measurements of sea surface temperature (SST) by the incorporation of high- frequency (HF) radar-derived surface current data. Water parcels tagged with SST are advected using particle trajectories calculated by integrating surface current velocity data. The SST of these advected water parcels are compared to SST measurements at the final times and locations of the advected water parcels. Different methods of generating surface currents from HF radar measurements are also examined. The Totals current method is a local fitting method which generates surface current measurements by solving a least-squares equation fitting multiple measurements from different radar sites. The Open-boundary Modal Analysis (OMA) method is a global method which fits a series of eigenfunction modes to available radial measurements. These modes are generated by solving two Laplacian eigenvalue problems on the domain with Dirichlet and Neumann boundary conditions, and adding a set of boundary modes to account for flow across open boundaries. Any current field in the domain can be described using a combination of these modes. The two methods are compared for accuracy against an analytic solution to the linear Stommel problem.
Showing items related by title, author, creator and subject.
Marom, Moshe (Monterey, California. Naval Postgraduate School, 1990-06);The potential of a method to remotely measure near-surface currents and dominant wave spectra using Interferometric Synthetic Aperture Radar INSAR is demonstrated. INSAR consists of a single conventional SAR augmented by ...
Measurement of electron beam emittance using optical transition radiation and development of a diffuse screen electron beam monitor Reid, Carlton B. (Monterey, California. Naval Postgraduate School, 1990);An experimental technique for measuring electron beam emittance using Optical Transition Radiation (OTR) with the Wartski Interferometer Method has been applied to the Naval Postgraduate School linear electron accelerator. ...
Measurement of minority charge carrier diffusion length in Gallium Nitride nanowires using Electron Beam InducedCurrent (EBIC) Ong, Chiou Perng (Monterey, California. Naval Postgraduate School, 2009-12);Electron Beam Induced Current (EBIC) measurements were performed on GaN nanowires to determine minority charge carrier diffusion length, d L . Although EBIC has been used to characterize bulk and thin film materials, ...