Results 181 to 190 of about 17,654,855 (215)

PALSAR-2 polarimetric image mosaic and its application to land cover monitoring

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
Land cover is an important earth observation parameter for understanding the Earth's ecosystem. Compared with optical sensors, Synthetic Aperture Radar (SAR) enables more rapid land cover monitoring with its all-weather, day-and-night imaging capability.
Masato Ohki, Masanobu Shimada
openaire   +1 more source

Peatland Carbon Emissions Estimates by ALOS-2 PALSAR-2 Interferometry in Borneo

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Carbon emissions from peatland significantly affect climate change. We adopted SAR interferometry technique in order to estimate the amount of carbon emissions from peatland receiving development pressure in Borneo. As a result, ground subsidence of 15.0 cm yr-1 on average and 31.0 cm yr-1 at maximum were observed.
Masato Hayashi, Takahiro Abe, Takashi Hirano, Ryuichi Hirata, Tomohiro Shiraishi, Lulie Melling   +5 more
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Optimal use of polarimetric signature on PALSAR-2 data for land cover classification

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
SAR data is playing key role in monitoring, the current status or change in, the land cover. For unsupervised SAR image classification, polarization signatures can play a significant role. Since it is difficult to obtain specific polarization signature of real land cover, it is customary to represent them with standard canonical structures polarization
Gopal Singh Phartiyal, Kundan Kumar, Dharmendra Singh, Keshav P. Singh   +3 more
openaire   +1 more source

Activation of a new landslide process on Bureya according to interferometric measurements by the PALSAR-2 radar

Радиотехника и электроника, 2023
Based on the results of processing an interferometric pair of radar images with synthesized aperture (SAR) L-band PALSAR-2 taken over the territory of the Bureya landslide in May 2019 and May 2020 from the ALOS-2 satellite, a new unstable surface area was discovered.
L. N. Zakharova, A. I. Zakharov, S. A. Nikitov   +2 more
openaire   +1 more source

PALSAR-2 polarimetric performance and the simulation study using the PI-SAR-L2

2013 IEEE International Geoscience and Remote Sensing Symposium - IGARSS, 2013
This paper describes the performance, calibration method, and observation scenarios for the ALOS-2/PALSAR-2 polarimetry mode. It also describes simulation studies conducted using data from Pi-SAR-L2, JAXA's L-band airborne SAR, for calibration and application studies.
Masanobu Shimada, Manabu Watanabe, Takeshi Motooka, Yukihiro Kankaku   +3 more
openaire   +1 more source

Evaluation of compact polarimetry and along track interferometry as experimental mode of PALSAR-2

2015 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2015
Advanced Land Observing Satellite-2 (ALOS-2) is a spaceborne Synthetic Aperture Radar (SAR) system, developed by Mitsubishi Electric Corporation under contract to Japan Aerospace Exploration Agency (JAXA). The SAR system named Phased Array type L-band Synthetic Aperture Radar-2(PALSAR-2) is installed to ALOS-2.
Yuya Yokota, Shohei Nakamura, Jun Endo, Kei Suwa, Tsutomu Endo, Masao Tsuji, Kenichi Hariu, Yukihiro Kankaku, Shinichi Suzuki, Masanobu Shimada   +9 more
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A critical analysis of polarimetrie signatures on PALSAR 2 data for land cover classification

2016 11th International Conference on Industrial and Information Systems (ICIIS), 2016
In this paper, polarization signatures are extracted for utilization of the fully polarimetrie L-band ALOS-PALSAR 2 data. These signatures are extracted for different land cover classes (i.e., urban, water, short vegetation, tall vegetation and bare soil).
Ajay Kumar Maurya, Gopal Singh Phartiyal, Dharmendra Singh   +2 more
openaire   +1 more source

Monitoring MT. Shinnmoe’s Crater Activity Using the Timeseries Palsar-2 Interferometry

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
We extracted the surface deformation of Mt. Shinnmoe-dake using the INSAR analysis of the time series PALSAR-2 data. Since the eruption in Oct. 2017, Mt. Shinmoedake volcano has been continuing the eruption activities, and showing the fluctuations in the crater from February 2017 to February 2018.
Kaho Fujiyama, Masanobu Shimada
openaire   +1 more source

Flood Detection in Built-up Area Using Interferometric SAR Data by Palsar-2

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium, 2019
Rapid and all-weather detection of flood areas is needed for monitoring and mitigating flood disasters. In this paper, we investigated flood area detection in built-up area using PALSAR-2 data acquired during the 2015 heavy rainfall disaster in the Kanto and Tohoku areas, Japan.
Masato Ohki, Masanobu Shimada
openaire   +1 more source

Results of ALOS-2 PALSAR-2 Calibration and Validation After 3 Years of Operation

IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
This paper reports the result of over 3 years routine calibration and validation works for the Phased Array type L-band Synthetic Aperture Radar-2 (P ALSAR-2) onboard the Advanced Land Observing Satellite-2 (ALOS-2). The major observation modes and beams were evaluated, and we confirmed that the PALSAR-2 product satisfy its specification over 3 years ...
Takeshi Motohka, Osamu Isoguchi, Masanori Sakashita, Masanobu Shimada   +3 more
openaire   +1 more source