Osamu Isoguchi

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This paper summarizes the results obtained from geometric and radiometric calibrations of the Phased-Array L-Band Synthetic Aperture Radar (PALSAR) on the Advanced Land Observing Satellite, which has been in space for three years. All of the imaging modes of the PALSAR, i.e., single, dual, and full polarimetric strip modes and scanning synthetic aperture(More)
From its launch in 2006, the phased array L-band synthetic aperture radar (PALSAR) onboard the advanced land observing satellite (ALOS) has acquired many dual-polarized (FBD) images with a 70-km swath width, aiming to produce spatially consistent coverage over tropical rainforest. This paper investigates the relevancy of PALSAR orthorectified FBD product at(More)
A study on sea oil slick observation by means of L-band polarimetric synthetic aperture radar (SAR) data is accomplished. It is based on different sea surface scattering mechanism expected with and without surface slicks. Polarimetric measurements are processed by means of a simple and very effective filtering technique which is electromagnetically based on(More)
In this research, the potential use of 50m ALOS/PALSAR mosaic data in mapping land cover and monitoring deforestation in Riau province using its amplitude and texture is studies. By using several bands of textural information, the main land covers in the image were improved. The geo-statistical analysis indicated that there was no single window size that(More)
This paper investigates the abilities and the limitations of ALOS PALSAR 50m resolution data for land cover classification in Tropical rainforest as part of the ALOS Kyoto and Carbon (K&C) Initiative Project. The K&C Initiative forms the continuation of the Global Rain Forest and Boreal Forest Mapping (GRFM/GBFM) project, in which 100m spatial resolution(More)
The relationship between ocean wind vectors and L-band normalized radar cross sections (NRCS) is comprehensively examined to propose an L-band model function by using the Phased-Array L-band Synthetic Aperture Radar (PALSAR) and scatterometer wind data. Based on more than 90,000 match-ups, the L-band NRCS dependence on wind speed, incidence angle, and(More)