DocumentCode :
2697345
Title :
Temporal Decorrelation for Forested Areas Observed in Spaceborne L-band SAR Interferometry
Author :
Eriksson, Leif E B ; Santoro, Maurizio ; Fransson, Johan E S
Author_Institution :
Chalmers Univ. of Technol., Goteborg
Volume :
5
fYear :
2008
fDate :
7-11 July 2008
Abstract :
Interferometric coherence from nine image pairs acquired by the Japanese satellite ALOS over a forest area in northern Sweden have been analyzed. Coherence levels for sparse and dense forest are compared. The results are in line with previous studies for JERS-1 and confirm that in most cases the temporal decorrelation is a severe problem for L-band SAR with repeat cycles on the order of six weeks. However, frozen conditions can give relatively high coherence for sparse forest and thereby allow good separation between dense and sparse forest.
Keywords :
geophysical signal processing; radar interferometry; remote sensing by radar; vegetation; vegetation mapping; ALOS Japanese satellite; JERS-1; forested areas; frozen condition; interferometric coherence; northern Sweden; spaceborne L-band SAR interferometry; Biomass; Coherence; Decorrelation; L-band; Optical pulses; Phased arrays; Satellites; Spaceborne radar; Synthetic aperture radar interferometry; Testing; InSAR; PALSAR; forest;
fLanguage :
English
Publisher :
ieee
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
Type :
conf
DOI :
10.1109/IGARSS.2008.4780083
Filename :
4780083
Link To Document :
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