This paper introduces a few simple scattering models intended for the application of polarimetric SAR interfer-ometry to land ice. The principal aim is to eliminate the penetration bias hampering ice sheet elevation maps generated with single-channel SAR interferometry. The polarimetric coherent scattering models are similar to the oriented-volume model and the random-volume-over-ground model used in vegetation studies, but the ice models are adapted to the different geometry of land ice. Also, due to compaction, land ice is not uniform; a fact that must be taken into account for large penetration depths. The validity of the scattering models is examined using L-band polarimetric interferometric SAR data acquired with the EMISAR system over an ice cap located in the percolation zone of the Greenland ice sheet. Radar reflectors were deployed on the ice surface prior to the data acquisition in order to allow the ice surface to be determined. Some of the models do explain the observations made for the ice itself, but none of the models is consistent with both ice and reflector obser-vations.
|Title of host publication||Proceedings of the EUSAR 2004 conference|
|Publication status||Published - 2004|
|Event||5th European Conference on Synthetic Aperture Radar - Ulm, Germany|
Duration: 25 May 2004 → 27 May 2004
Conference number: 5
|Conference||5th European Conference on Synthetic Aperture Radar|
|Period||25/05/2004 → 27/05/2004|