Title :
Third Stokes parameter emission from a periodic water surface
Author :
Johnson, J.T. ; Kong, J.A. ; Shin, R.T. ; Staelin, D.H. ; O´Neill, K. ; Lananick, A.W.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA
Abstract :
An experiment in which the third Stokes parameter thermal emission from a periodic water surface was measured is documented. This parameter is shown to be related to the direction of periodicity of the periodic surface and to approach brightnesses of up to 30 K at X-band for the surface used in the experiment. The surface actually analyzed was a "two-layer" periodic surface; the theory of thermal emission from such a surface is derived and the theoretical results are found to be in good agreement with the experimental measurements. These results further the idea of using the third Stokes parameter emission as an indicator of wind direction over the ocean.<>
Keywords :
atmospheric radiation; ocean waves; polarimetry; remote sensing; X-band; ocean surface; passive polarimetry; periodic water surface; periodicity; remote sensing; third Stokes parameter thermal emission; two-layer periodic surface; wind direction indicator; Brightness temperature; Geophysical measurements; Laboratories; Ocean temperature; Polarimetry; Polarization; Remote sensing; Sea measurements; Sea surface; Stokes parameters;
Journal_Title :
Geoscience and Remote Sensing, IEEE Transactions on
