Accession Number : ADA266339


Title :   Radar Imaging of Sub-Mesoscale Ocean Phenomena


Descriptive Note : Final rept. Feb 1990-Jan 1993


Corporate Author : ENVIRONMENTAL RESEARCH INST OF MICHIGAN ANN ARBOR


Personal Author(s) : Lyzenga, Dave R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a266339.pdf


Report Date : Mar 1993


Pagination or Media Count : 75


Abstract : A model for the short surface wave spectrum is presented, which includes the effects of wind forcing, surfactant damping, wave-current interactions, and wave breaking. A new analytical solution of the wave action equation was developed in order to account for wave-current interactions. The wave breaking model is based on a threshold criterion involving the vertical acceleration. The breaking fraction is then calculated as a function of the slope variance, and the backscatter is calculated from the Kirchhoff model by assuming a Gaussian correlation function within the breaking regions, Model predictions are compared with synthetic aperture radar observation made during the ONR/NRL High Resolution field experiment.


Descriptors :   *SYNTHETIC APERTURE RADAR , *BACKSCATTERING , FUNCTIONS , OCEAN WAVES , SURFACE WAVES , PREDICTIONS , MODELS , INTERACTIONS , REGIONS , APERTURES , EQUATIONS , SURFACE ACTIVE SUBSTANCES , SLOPE , CORRELATION , HIGH RESOLUTION , RADAR IMAGES , ACCELERATION , OBSERVATION , RESOLUTION , WIND , DAMPING


Subject Categories : Active & Passive Radar Detection & Equipment


Distribution Statement : APPROVED FOR PUBLIC RELEASE