Rotated dihedral and volume scattering behavior in cross-polarimetric SAR

Sang Hoon Hong; Shimon Wdowinski

doi:10.1109/IGARSS.2010.5654326

Rotated dihedral and volume scattering behavior in cross-polarimetric SAR

Sang Hoon Hong, Shimon Wdowinski

Marine Geology and Geophysics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

In this study we analyze Radarsat-2 quadruple polarization (quad-pol) mode data acquired over the Everglades wetlands in south Florida. We analyzed the phase information of each polarization mode independently, and obtained similar fringe patterns representing water level changes in all four interferograms. It is surprising, because common scattering theories indicate that cross-polarization (cross-pol) observations reflect volume scattering due to the interaction of the radar signal with upper sections of the vegetation. However, our cross-pol interferometric observations suggest that the cross-pol signal reached the water surface and scattered back to the satellite by a rotated dihedral double bounce mechanism. Based on these new observations, we developed a new scattering formulation that accounts also for double bounce component in cross-pol.

Original language	English (US)
Title of host publication	2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
Pages	3138-3141
Number of pages	4
DOIs	https://doi.org/10.1109/IGARSS.2010.5654326
State	Published - Dec 1 2010
Event	2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010 - Honolulu, HI, United States Duration: Jul 25 2010 → Jul 30 2010

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)

Other

Other	2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010
Country	United States
City	Honolulu, HI
Period	7/25/10 → 7/30/10

Keywords

Everglades
Polarimetric decomposition
Polarimetric synthetic aperture radar (POLSAR)
Rotated dihedral scattering
Volume scattering
Wetland InSAR

ASJC Scopus subject areas

Computer Science Applications
Earth and Planetary Sciences(all)

Access to Document

10.1109/IGARSS.2010.5654326

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Rotated dihedral and volume scattering behavior in cross-polarimetric SAR. / Hong, Sang Hoon; Wdowinski, Shimon.

2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010. 2010. p. 3138-3141 5654326 (International Geoscience and Remote Sensing Symposium (IGARSS)).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hong, SH & Wdowinski, S 2010, Rotated dihedral and volume scattering behavior in cross-polarimetric SAR. in 2010 IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010., 5654326, International Geoscience and Remote Sensing Symposium (IGARSS), pp. 3138-3141, 2010 30th IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010, Honolulu, HI, United States, 7/25/10. https://doi.org/10.1109/IGARSS.2010.5654326

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abstract = "In this study we analyze Radarsat-2 quadruple polarization (quad-pol) mode data acquired over the Everglades wetlands in south Florida. We analyzed the phase information of each polarization mode independently, and obtained similar fringe patterns representing water level changes in all four interferograms. It is surprising, because common scattering theories indicate that cross-polarization (cross-pol) observations reflect volume scattering due to the interaction of the radar signal with upper sections of the vegetation. However, our cross-pol interferometric observations suggest that the cross-pol signal reached the water surface and scattered back to the satellite by a rotated dihedral double bounce mechanism. Based on these new observations, we developed a new scattering formulation that accounts also for double bounce component in cross-pol.",

keywords = "Everglades, Polarimetric decomposition, Polarimetric synthetic aperture radar (POLSAR), Rotated dihedral scattering, Volume scattering, Wetland InSAR",

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N2 - In this study we analyze Radarsat-2 quadruple polarization (quad-pol) mode data acquired over the Everglades wetlands in south Florida. We analyzed the phase information of each polarization mode independently, and obtained similar fringe patterns representing water level changes in all four interferograms. It is surprising, because common scattering theories indicate that cross-polarization (cross-pol) observations reflect volume scattering due to the interaction of the radar signal with upper sections of the vegetation. However, our cross-pol interferometric observations suggest that the cross-pol signal reached the water surface and scattered back to the satellite by a rotated dihedral double bounce mechanism. Based on these new observations, we developed a new scattering formulation that accounts also for double bounce component in cross-pol.

AB - In this study we analyze Radarsat-2 quadruple polarization (quad-pol) mode data acquired over the Everglades wetlands in south Florida. We analyzed the phase information of each polarization mode independently, and obtained similar fringe patterns representing water level changes in all four interferograms. It is surprising, because common scattering theories indicate that cross-polarization (cross-pol) observations reflect volume scattering due to the interaction of the radar signal with upper sections of the vegetation. However, our cross-pol interferometric observations suggest that the cross-pol signal reached the water surface and scattered back to the satellite by a rotated dihedral double bounce mechanism. Based on these new observations, we developed a new scattering formulation that accounts also for double bounce component in cross-pol.

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