Accession Number : AD0465143


Title :   PROJECT WAVE AN EXPERIMENTAL AND THEORETICAL STUDY OF SCATTERING FROM WATER WAVES.


Descriptive Note : Final rept.,


Corporate Author : CORNELL AERONAUTICAL LAB INC BUFFALO NY


Personal Author(s) : Camnitz, H G ; Rogers, R R


Report Date : 10 Mar 1965


Pagination or Media Count : 97


Abstract : A formulation of the physical optics theory particularly applicable to microwave scattering from water surfaces was developed. The special case of backscattering from simple gravity waves was investigated, and expressions obtained for the scattering amplitudes from both smooth waves and rough waves. A simple model based on the assumptions that individual area elements of the water surface scatter independently with a Lambert's law distribution, and that the power scattered from an element is Doppler shifted in accord with the fluid velocity at the element was considered in detail. Applications of this model to trochoidal waves were made using expressions for particle trajectories and velocities derived from the theory of hydrodynamics. Results of experiments utilizing a wave tank and an X-band, CW Doppler radar are described and compared with predictions of the theory. (Author)


Descriptors :   *RADAR REFLECTIONS , SCATTERING , WATER WAVES , REFLECTION , CONFIGURATIONS , MATHEMATICAL MODELS , SURFACE PROPERTIES , DOPPLER RADAR , DOPPLER EFFECT , HYDRODYNAMICS , PARTICLE TRAJECTORIES , X BAND , CONTINUOUS WAVE RADAR , KINETIC THEORY , OCEAN MODELS


Distribution Statement : APPROVED FOR PUBLIC RELEASE