Marine Science Faculty Publications
Current Patterns on the West Florida Shelf from Joint Self-Organizing Map Analyses of Hf Radar and Adcp Data
Document Type
Article
Publication Date
4-2007
Digital Object Identifier (DOI)
https://doi.org/10.1175/JTECH1999.1
Abstract
To assess the spatial structures and temporal evolutions of distinct physical processes on the West Florida Shelf, patterns of ocean current variability are extracted from a joint HF radar and ADCP dataset acquired from August to September 2003 using Self-Organizing Map (SOM) analyses. Three separate ocean-atmosphere frequency bands are considered: semidiurnal, diurnal, and subtidal. The currents in the semidiurnal band are relatively homogeneous in space, barotropic, clockwise polarized, and have a neap-spring modulation consistent with semidiurnal tides. The currents in the diurnal band are less homogeneous, more baroclinic, and clockwise polarized, consistent with a combination of diurnal tides and near-inertial oscillations. The currents in the subtidal frequency band are stronger and with more complex patterns consistent with wind and buoyancy forcing. The SOM is shown to be a useful technique for extracting ocean current patterns with dynamically distinctive spatial and temporal structures sampled by HF radar and supporting in situ measurements.
Was this content written or created while at USF?
Yes
Citation / Publisher Attribution
Journal of Atmospheric and Oceanic Technology, v. 24, issue 4, p. 702-712
Scholar Commons Citation
Liu, Yonggang; Weisberg, Robert H.; and Shay, Lynn K., "Current Patterns on the West Florida Shelf from Joint Self-Organizing Map Analyses of Hf Radar and Adcp Data" (2007). Marine Science Faculty Publications. 347.
https://digitalcommons.usf.edu/msc_facpub/347
