Polarimetric observation for rice field by RADARSAT-2 and ALOS/PALSAR

Author

Yonezawa, Chinatsu ; Imai, Takahiro ; Kunii, Daisuke ; Watanabe, Manabu ; Saito, Genya

Author_Institution

Tohoku Univ., Sendai, Japan

fYear

2011

fDate

24-29 July 2011

Firstpage

2282

Lastpage

2285

Abstract

Full polarimetric L-band ALOS PALSAR and C-band RADARSAT-2 datasets observing paddy rice field, JAPAN were analyzed by polarimetric decomposition method. From the analysis results by three component decomposition method, remarkable seasonal change is observed by double bounce scattering component ratio on ALOS PALSAR data. RADARSAT-2 data show more than 50% of volume scattering component and it increases with rice growth. Double bounce scattering component reached to 30 40% on PALSAR data, as of August, while it was less than 20% on RADARSAT-2 data. The difference of penetration depth on vegetation area between L-band and C-band may be cause of the difference of the scattering mechanism.

Keywords

remote sensing by radar; vegetation; vegetation mapping; C-band RADARSAT-2 dataset; Japan; L-band ALOS PALSAR dataset; double bounce scattering component; paddy rice field; polarimetric decomposition method; polarimetric observation; rice field; rice growth; scattering mechanism; vegetation area; volume scattering component; Decision support systems; SAR; paddy rice; polanmetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Geoscience and Remote Sensing Symposium (IGARSS), 2011 IEEE International

Conference_Location

Vancouver, BC

ISSN

2153-6996

Print_ISBN

978-1-4577-1003-2

Type

conf

DOI

10.1109/IGARSS.2011.6049664

Filename

6049664