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ALOS-2/PALSAR-2 Calibration, Validation, Science and Applications [PDF]

, 2022
Twelve edited original papers on the latest and state-of-art results of topics ranging from calibration, validation, and science to a wide range of applications using ALOS-2/PALSAR-2.
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Seasonal Change Analysis for ALOS-2 PALSAR-2 Deforestation Detection

IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium, 2020
JICA and JAXA have operated a tropical forest early warning system (JJ-FAST) since 2016 and ALOS-2 L-band SAR system (PALSAR-2/ScanSAR) is used for forest monitoring and deforestation detection. There are many factors to cause commission errors in SAR image and ground moisture is one of them.
Izumi Nagatani, Masato Hayashi, Manabu Watanabe, Takeo Tadono, Tomohiro Watanabe, Christian N. Koyama, Masanobu Shimada   +6 more
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Palsar-2 Compact Assessment and Calibration

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
ALOS2-PALSAR2, which was launched on the 24th of May 2014, is equipped with an experimental Compact mode (CP) ([1], [2]), that can collect CP images at various incidence angles (H2-1 to H2-9, from 18° to 44°). PALSAR2-CP transmits a circular polarization and measures the received signal at the horizontal and vertical antenna polarization.
Ridha Touzi, Masanobu Shimada, Takeshi Motohka, Stefan Nedelcu   +3 more
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Assessment of PALSAR-2 Compact Calibration

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
ALOS-2-PALSAR is equipped with an experimental Compact mode (CP), which can collect CP images at various incidence angles. PALSAR2-CP transmits a circular polarization and measures the received signal at the horizontal and vertical antenna polarization.
Ridha Touzi, Masanobu Shimada, Takeshi Motohka, Stefan Nedelcu   +3 more
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PALSAR-2 launch and early orbit status

2014 IEEE Geoscience and Remote Sensing Symposium, 2014
The Advanced Land Observing Satellite-2 (ALOS-2) is the RADAR satellite which is carrying the state-of-the-art L-band Synthetic Aperture Radar (SAR) called PALSAR-2 (Phased Array type L-band SAR-2) which succeeds to the PALSAR mounted on ALOS “Daichi”.
Yukihiro Kankaku, Masakazu Sagisaka, Shinichi Suzuki   +2 more
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Detection of wind fields from PALSAR-2

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
The relationship between ocean wind vectors and L-band normalized radar cross sections (NRCS) is examined to modify the L-band geophysical model function (GMF) using the Phased-Array L-band Synthetic Aperture Radar 2 (PALSAR-2) and scatterometer wind data.
Osamu Isoguchi, Masanobu Shimada
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Assessment of polarimetric PALSAR-2 potential for peatland characterization

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
ALOS-2, which was launched on the 24th of May 2014, is equipped with a fully polarimeric L-band SAR (PALSAR-2) [1, 2]. Unlike ALOS-PALSAR, which used to collect polarimetric (PLR) data at one incidence angle (about 22°) [3], PALSAR-2 offers the possibility of providing PLR measurements at various beams (FP6-3 to FP6-6), with incidence angle varying ...
Ridha Touzi, Xianfeng Jiao, Khalid Omari, Bob Sleep   +3 more
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Assessment of PALSAR-2 Compact Non-Circularity Using Amazonian Rainforests

IEEE Transactions on Geoscience and Remote Sensing, 2020
Compact-hybrid SAR (CP) is a dual-polarization (dual-pol) SAR mode that transmits a circular polarization (CirP) and measures the received signal at the horizontal and vertical antenna polarization. It is now admitted that the actual SAR technology does not permit the generation of a perfectly CirP and this may significantly affect CP radiometric and ...
Ridha Touzi, Masanobu Shimada, Takeshi Motohka, Stefan Nedelcu   +3 more
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Performance of ALOS-2 PALSAR-2 for disaster response

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
In 2016, the Advanced Land Observing Satellite-2 (ALOS-2, “DAICHI-2”) observed various disaster affected areas. Japan Aerospace Exploration Agency (JAXA) operated the emergency observation more than hundred times in the year. The Phased Array type L-band Synthetic Aperture Radar-2 (PALSAR-2) aboard ALOS-2 contributed for detecting the disaster affected
Ryo Natsuaki, Masato Ohki, Hiroto Nagai, Takeshi Motohka, Takeo Tadono, Masanobu Shimada, Shinichi Suzuki   +6 more
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Generation of the first PALSAR-2 global mosaic 2014/2015 and change detection between 2007 and 2015 using the PALSAR and PALSAR-2

2016 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2016
Decreasing the carbon emission from the deforestation and forest degradation is one of the issues that the humans need to tag for sustaining the Earth. Monitoring the forest from the space is the recent achievements that the space agencies contribute. Measuring the forest cover change is being conducted by using the high resolution optical and/or SAR ...
Masanobu Shimada, Takuya Itoh, Takeshi Motooka, Manabu Watanabe, Rajesh Bahadur Thapa   +4 more
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