Title :
Optical, radar and in situ measurements of internal wave dispersion
Author :
Gotwols, B.L. ; Aarholt, E. ; Chapman, R.D. ; Sterner, R.E., II
Author_Institution :
Appl. Phys. Lab., Johns Hopkins Univ., Laurel, MD, USA
Abstract :
A deep draft fishing boat was used to generate internal waves in a glacially-fed Norwegian fjord during August 1995. Data from a CCD camera, and X-band delta-K radar were used to compute the internal wave dispersion relation. The optically derived dispersion relation agreed with theoretical calculations based on nearby CTD casts. The radar observations also showed good agreement with the CTD casts but in addition exhibited a nondispersive feature which may be attributed to nonlinear scattering of the radar signal from the surface roughness
Keywords :
oceanographic regions; oceanographic techniques; radar cross-sections; remote sensing; remote sensing by radar; AD 1995 08; CCD camera; North Sea; Norway; Norwegian Sea; Norwegian fjord; X-band delta-K radar; coast; fishing boat; in situ measurement; internal wave; internal wave dispersion; measurement technique; nondispersive feature; nonlinear scattering; ocean dynamics; optical imaging; radar remote sensing; sea surface; Boats; Charge coupled devices; Charge-coupled image sensors; Dispersion; Laser radar; Nonlinear optics; Optical scattering; Optical surface waves; Radar measurements; Radar scattering;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 1996. IGARSS '96. 'Remote Sensing for a Sustainable Future.', International
Conference_Location :
Lincoln, NE
Print_ISBN :
0-7803-3068-4
DOI :
10.1109/IGARSS.1996.516785
