Title :
When are HF-radar observed wave heights modulated by periodic tidal and inertial currents?
Author :
Barrick, Donald ; Lipa, Belinda
Author_Institution :
CODAR Ocean Sensors Ltd., Mountain View, CA, USA
Abstract :
Two recent sets of HF radar observations in the Atlantic by SeaSondes have observed unexpected periodic modulations of significant wave height at the M2 tidal and inertial frequencies. These are examined and related to the underlying, strong currents. They are interpreted in terms of kinematic advection influences that change the first-order wave characteristics due to frequency dispersion.
Keywords :
ocean waves; oceanographic regions; oceanographic techniques; remote sensing by radar; tides; Atlantic; HF radar observations; M2 inertial frequency; M2 tidal frequency; SeaSondes; first-order wave characteristics; frequency dispersion; inertial currents; kinematic advection; periodic tidal; significant wave height; unexpected periodic modulations; wave heights; Current measurement; Modulation; Oscillators; Radar measurements; Sea measurements; Surface waves; HF radar; inertial oscillations; tidal modulation of wave height; wave monitoring;
Conference_Titel :
Current, Waves and Turbulence Measurement (CWTM), 2015 IEEE/OES Eleventh
Conference_Location :
St. Petersburg, FL
Print_ISBN :
978-1-4799-8418-3
DOI :
10.1109/CWTM.2015.7098142
