Title :
Low Frequency Sea and Ice Sheet Impulse Responses Acquired by the Global Ice Sheet Mapping Orbiter (GISMO) Demonstrator
Author :
Niamsuwan, N. ; Johnson, J.T.
Author_Institution :
Dept. of Electr. & Comput. Eng. & ElectroScience Lab., Ohio State Univ., Columbus, OH
Abstract :
A study of sea and ice sheet surface impulse responses measured at 150 MHz is reported. The presence of both coherent and noncoherent returns is observed due to the low frequency of observation, and attempts to interpret the observed wave-forms are presented. Further analysis using a Monte Carlo simulation of one dimensional surface impulse responses suggests that the physical optics theory should be applicable for modeling the observed waveforms so that they can be used in sensing ice sheet surface properties.
Keywords :
Monte Carlo methods; airborne radar; glaciology; radar interferometry; remote sensing by radar; spaceborne radar; synthetic aperture radar; terrain mapping; topography (Earth); 1D electromagnetic scattering model; 1D surface impulse response; GISMO demonstrator; GLOBAL ICE SHEET MAPPING ORBITER; Monte Carlo simulation; SAR interferometry; airborne radar; frequency 150 MHz; ice sheet surface impulse response; ice sheet surface properties; physical optics theory; sea surface impulse response; spaceborne radar; standard Brown model; subglacial topography; surface topography; synthetic aperture radar; Extraterrestrial measurements; Frequency; Ice surface; Optical surface waves; Rough surfaces; Sea measurements; Sea surface; Spaceborne radar; Surface roughness; Surface topography; Ice sheets; radar altimetry; rough surfaces;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2008. IGARSS 2008. IEEE International
Conference_Location :
Boston, MA
Print_ISBN :
978-1-4244-2807-6
Electronic_ISBN :
978-1-4244-2808-3
DOI :
10.1109/IGARSS.2008.4778925
