120 likes | 289 Views
Polarimetric Coastal/ Marine Applications. Shoreline detection Substrate Mapping Ship Detection Winds Oil Spill. CV580 data Minas Basin. HH. HV. VV. Shoreline detection.
E N D
Polarimetric Coastal/ Marine Applications • Shoreline detection • Substrate Mapping • Ship Detection • Winds • Oil Spill
CV580 data Minas Basin HH HV VV Shoreline detection • Single channel data (e.g. HH or HV) produce good results unless land-water contrast is reduced due to wind or wave effects 2
Vegetated land Sandy Beach Water Line Shoreline Detection CV580 image of Duck Beach, NC.
Sandstone Mud Gravel Substrate Mapping Convair-580 RGB composite (R-HH, G-HV, B-VV) of tidal flat at Evangeline Beach, NS.
Substrate Mapping Mud (0.03) Sandstone (0.14) Gravel (0.36) Polarimetric signatures for tidal zone substrates; (x).pedestal height
Sandstone Mud Gravel Substrate Mapping Odd bounce scatters are those where: 1) the orientation angle of the scattered wave polarization (yr) increases as the orientation of the transmitted wave polarization(yt) increases and, 2) where the handedness of the scattered wave is the opposite of the of that of the transmitted wave (handedness is defined as the wave is moving away from the observer). For example, the sign of the ellipticity angle (c) of the scattered wave would be opposite of the transmitted wave, that is, a left handed elliptically polarized wave would be teturned as a right-handed oriented wave. Even bounce scatters: are those where 1) the orientation of the scattered wave polarization increases as the orientation angle of the transmitted wave polarization decreases and 2) where the handedness of the scattered wave is the same as that of the transmitted wave. Diffuse Scatters: are those where 1) the orientation angle of the scattered wave polarization increases as the orientation angle of the transmitted wave polarization increases and 2) where the handedness of the scattered wave is the same as that of the transmitted wave. Even (double) Diffuse Odd Unsupervised classification of scattering mechanisms.
Mapping of Oceanic and Atmospheric Phenomena
Mapping of Oceanic and Atmospheric Phenomena
Slick Detection RADARSAT IMAGE OF OIL SLICK Wales (United Kingdom), February 1996 ERS-1 IMAGE OF OIL SLICK Wales (United Kingdom), February 1996 (SAME AREA) see web site.