By Topic

Ocean-wave imaging by synthetic-aperture radar: results from the SIR-B experiment in the N.E. Atlantic

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Macklin, J.T. ; Marconi Res. Centre, Chelmsford, UK ; Cordey, R.A.

Waveheight spectra were extracted from synthetic-aperture radar (SAR) images close to a number of wave-measuring buoys, and the results of radar and in situ measurements were compared as a test of wave-imaging theory. SAR and buoy spectra of waves traveling close to the radar range direction were in good quantitative agreement, with any discrepancies probably attributable to the processing technique. However, SAR estimates of the amplitude of azimuth-traveling waves were very much lower than buoy-derived values. This cannot be accounted for by appealing to nonlinear imaging by the velocity-bunching mechanism, or by velocity smearing, calculating the scene coherence time from the available buoy data. Rather, the scene coherent time must be reduced by a factor of about two, to within the range 0.022-0.027 s. This result highlights a lack of knowledge of scatterer motions and lifetimes on the sea surface

Published in:

Geoscience and Remote Sensing, IEEE Transactions on  (Volume:27 ,  Issue: 1 )