DocumentCode
279798
Title
Inversion of the HF radar Doppler spectrum for ocean wave measurement
Author
Wyatt, Lucy R.
Author_Institution
Dept. of Appl. & Comp. Math., Sheffield Univ., UK
fYear
1990
fDate
32925
Firstpage
42430
Lastpage
42432
Abstract
An unambiguous measurement of the directional spectrum is obtained. The estimates are amplitudes on a nonuniform 2-D wavenumber grid with a short-wave cut-off (due to a requirement to linearise the integral equation) which is at 0.2 Hz at 7MHz (a radar frequency which provides a long-range measuring capability) and 0.3Hz at 27 MHz. There is a long wave cut-off which varies with spectral quality and ocean conditions but which is at about 0.05 Hz. Beyond the short wave cut-off the spectral estimates are those of the initialisation
Keywords
Doppler effect; ocean waves; oceanographic techniques; radar measurement; remote sensing; 7 MHz; HF radar Doppler spectrum; directional spectrum; integral equation; long wave cut-off; long-range measuring capability; nonuniform 2-D wavenumber grid; ocean conditions; ocean wave measurement; radar frequency; remote sensing; short-wave cut-off; spectral estimates; spectral quality; technique;
fLanguage
English
Publisher
iet
Conference_Titel
Interaction of Radiowaves with the Sea Surface, IEE Colloquium on
Conference_Location
London
Type
conf
Filename
189843
Link To Document