Title :
Hydrodynamic and radar modeling of surface features observed in Gulf Stream boundary regions
Author :
Jansen, R.W. ; Ainsworth, T.L. ; Fusina, R.A. ; Chubb, S.R. ; Valenzuela, G.R.
Author_Institution :
Sensing Div., Naval Res. Lab., Washington, DC, USA
Abstract :
The perturbed ocean wave field and the radar return associated with Gulf Stream boundary current convergence fronts (Rips) are modeled. The surface wave field is simulated using the full-wave action density equation including the effects of wind input, wave/current interaction, and dissipation. Radar return from the ocean surface is computed using a tilted-Bragg scattering model and wave breaking statistics obtained using modelled wave dissipation results. The effect of wave breaking is examined for a range of commonly observed Rip conditions and compared with observations made during the NRL Gulf Stream 90 (Valenzuela, 1991), and Hi-Res Ocean experiments (Mied, 1992)
Keywords :
backscatter; electromagnetic wave scattering; ocean waves; oceanographic regions; oceanographic techniques; radar applications; radar cross-sections; remote sensing by radar; Gulf Stream boundary regions; North Atlantic; Rip; Rips; air sea interaction; backscatter; boundary current convergence fronts; dissipation dynamics; full-wave action density equation; hydrodynamic; ocean wave; perturbed wave field; radar model; radar return; radar scattering; radiowave reflection; sea surface; surface feature; tilted-Bragg scattering model; wave breaking statistics; wave current interaction; wind; Computational modeling; Convergence; Equations; Hydrodynamics; Mie scattering; Ocean waves; Radar scattering; Sea surface; Statistics; Surface waves;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1994. IGARSS '94. Surface and Atmospheric Remote Sensing: Technologies, Data Analysis and Interpretation., International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-1497-2
DOI :
10.1109/IGARSS.1994.399151
