Consideration of Surface Information Extraction Method for Disaster Prevention using ALOS PALSAR Interferometry

Atsushi Iwashita, Toshikazu Morohoshi, Sache Iso, Masashi Matsuoka, Tuomas Häme, Yrjö Rauste, Machiko Louhisuo, Hisatoshi Baba, Masanao Hara, Yu-feng Lin, Wen-qing Jaung

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Abstract

The first object of this study is to consider ground surface displacements that occurred due to Philippine Sea Plate movements in the adjacent area of Huatung Valley in Taiwan. In order to clarify the activity of Crustal Deformation in this area, we have previously performed repeat-pass Differential SAR Interferometry (D-InSAR) to estimate and then evaluate the displacement values by geodetic levelling measurements. According to these previous results using successful ENVISAT/ASAR data, the displacement values ranged between -1.5 cm and +2.8 cm, which coincide on the active fault area. In order to confirm these obtained results, we are expecting to acquire and more detail processing of L-band ALOS/PALSAR interferograms. The second object of this study is aiming to apply the Triherence method developed by ENVISAT/ASAR data to generate the stable phase points to extract the small hazardous area of landslides. According to previous results, varying of stable phase point number that indicates the tiny deformation caused by the existence of landslide precursor. We plan to develop new Triherence method using ALOS/PALSAR data to apply landslide areas in Taiwan, Malaysia and Japan. Finally, we plan to compare with GPS displacements at the hazardous areas. This is the step to obtain ground surface hazardous map by comparing several geophysical data such as Earthquake Epicenters, GPS surveys, EDM surveys and Seismic Exploration Survey. Using above related Earth's Surface Deformation Information, we plan to extract effective and useful information for disaster prevention and mitigation.
Original languageEnglish
Title of host publicationProceedings of the 1st Joint PI Symposium of ALOS Data Nodes for ALOS Science Program in Kyoto
Place of PublicationJapan
Number of pages4
Publication statusPublished - 2008
MoE publication typeNot Eligible
Event1st Joint PI symposium of ALOS Data Nodes for ALOS Science Program - Kyoto, Japan
Duration: 19 Nov 200723 Nov 2007
https://www.eorc.jaxa.jp/ALOS/conf/Proc_PIsymp2007/contents/top.html (All articles)

Conference

Conference1st Joint PI symposium of ALOS Data Nodes for ALOS Science Program
CountryJapan
CityKyoto
Period19/11/0723/11/07
Internet address

Fingerprint

PALSAR
ALOS
extraction method
interferometry
landslide
GPS
Philippine Sea plate
crustal deformation
leveling
active fault
earthquake epicenter
synthetic aperture radar
mitigation
valley
disaster prevention
plan
method

Keywords

  • disaster prevention
  • SAR interferometry
  • triherence

Cite this

Iwashita, A., Morohoshi, T., Iso, S., Matsuoka, M., Häme, T., Rauste, Y., ... Jaung, W. (2008). Consideration of Surface Information Extraction Method for Disaster Prevention using ALOS PALSAR Interferometry. In Proceedings of the 1st Joint PI Symposium of ALOS Data Nodes for ALOS Science Program in Kyoto [DIS04] Japan.
Iwashita, Atsushi ; Morohoshi, Toshikazu ; Iso, Sache ; Matsuoka, Masashi ; Häme, Tuomas ; Rauste, Yrjö ; Louhisuo, Machiko ; Baba, Hisatoshi ; Hara, Masanao ; Lin, Yu-feng ; Jaung, Wen-qing. / Consideration of Surface Information Extraction Method for Disaster Prevention using ALOS PALSAR Interferometry. Proceedings of the 1st Joint PI Symposium of ALOS Data Nodes for ALOS Science Program in Kyoto. Japan, 2008.
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title = "Consideration of Surface Information Extraction Method for Disaster Prevention using ALOS PALSAR Interferometry",
abstract = "The first object of this study is to consider ground surface displacements that occurred due to Philippine Sea Plate movements in the adjacent area of Huatung Valley in Taiwan. In order to clarify the activity of Crustal Deformation in this area, we have previously performed repeat-pass Differential SAR Interferometry (D-InSAR) to estimate and then evaluate the displacement values by geodetic levelling measurements. According to these previous results using successful ENVISAT/ASAR data, the displacement values ranged between -1.5 cm and +2.8 cm, which coincide on the active fault area. In order to confirm these obtained results, we are expecting to acquire and more detail processing of L-band ALOS/PALSAR interferograms. The second object of this study is aiming to apply the Triherence method developed by ENVISAT/ASAR data to generate the stable phase points to extract the small hazardous area of landslides. According to previous results, varying of stable phase point number that indicates the tiny deformation caused by the existence of landslide precursor. We plan to develop new Triherence method using ALOS/PALSAR data to apply landslide areas in Taiwan, Malaysia and Japan. Finally, we plan to compare with GPS displacements at the hazardous areas. This is the step to obtain ground surface hazardous map by comparing several geophysical data such as Earthquake Epicenters, GPS surveys, EDM surveys and Seismic Exploration Survey. Using above related Earth's Surface Deformation Information, we plan to extract effective and useful information for disaster prevention and mitigation.",
keywords = "disaster prevention, SAR interferometry, triherence",
author = "Atsushi Iwashita and Toshikazu Morohoshi and Sache Iso and Masashi Matsuoka and Tuomas H{\"a}me and Yrj{\"o} Rauste and Machiko Louhisuo and Hisatoshi Baba and Masanao Hara and Yu-feng Lin and Wen-qing Jaung",
year = "2008",
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Iwashita, A, Morohoshi, T, Iso, S, Matsuoka, M, Häme, T, Rauste, Y, Louhisuo, M, Baba, H, Hara, M, Lin, Y & Jaung, W 2008, Consideration of Surface Information Extraction Method for Disaster Prevention using ALOS PALSAR Interferometry. in Proceedings of the 1st Joint PI Symposium of ALOS Data Nodes for ALOS Science Program in Kyoto., DIS04, Japan, 1st Joint PI symposium of ALOS Data Nodes for ALOS Science Program, Kyoto, Japan, 19/11/07.

Consideration of Surface Information Extraction Method for Disaster Prevention using ALOS PALSAR Interferometry. / Iwashita, Atsushi; Morohoshi, Toshikazu; Iso, Sache; Matsuoka, Masashi; Häme, Tuomas; Rauste, Yrjö; Louhisuo, Machiko; Baba, Hisatoshi; Hara, Masanao; Lin, Yu-feng; Jaung, Wen-qing.

Proceedings of the 1st Joint PI Symposium of ALOS Data Nodes for ALOS Science Program in Kyoto. Japan, 2008. DIS04.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

TY - GEN

T1 - Consideration of Surface Information Extraction Method for Disaster Prevention using ALOS PALSAR Interferometry

AU - Iwashita, Atsushi

AU - Morohoshi, Toshikazu

AU - Iso, Sache

AU - Matsuoka, Masashi

AU - Häme, Tuomas

AU - Rauste, Yrjö

AU - Louhisuo, Machiko

AU - Baba, Hisatoshi

AU - Hara, Masanao

AU - Lin, Yu-feng

AU - Jaung, Wen-qing

PY - 2008

Y1 - 2008

N2 - The first object of this study is to consider ground surface displacements that occurred due to Philippine Sea Plate movements in the adjacent area of Huatung Valley in Taiwan. In order to clarify the activity of Crustal Deformation in this area, we have previously performed repeat-pass Differential SAR Interferometry (D-InSAR) to estimate and then evaluate the displacement values by geodetic levelling measurements. According to these previous results using successful ENVISAT/ASAR data, the displacement values ranged between -1.5 cm and +2.8 cm, which coincide on the active fault area. In order to confirm these obtained results, we are expecting to acquire and more detail processing of L-band ALOS/PALSAR interferograms. The second object of this study is aiming to apply the Triherence method developed by ENVISAT/ASAR data to generate the stable phase points to extract the small hazardous area of landslides. According to previous results, varying of stable phase point number that indicates the tiny deformation caused by the existence of landslide precursor. We plan to develop new Triherence method using ALOS/PALSAR data to apply landslide areas in Taiwan, Malaysia and Japan. Finally, we plan to compare with GPS displacements at the hazardous areas. This is the step to obtain ground surface hazardous map by comparing several geophysical data such as Earthquake Epicenters, GPS surveys, EDM surveys and Seismic Exploration Survey. Using above related Earth's Surface Deformation Information, we plan to extract effective and useful information for disaster prevention and mitigation.

AB - The first object of this study is to consider ground surface displacements that occurred due to Philippine Sea Plate movements in the adjacent area of Huatung Valley in Taiwan. In order to clarify the activity of Crustal Deformation in this area, we have previously performed repeat-pass Differential SAR Interferometry (D-InSAR) to estimate and then evaluate the displacement values by geodetic levelling measurements. According to these previous results using successful ENVISAT/ASAR data, the displacement values ranged between -1.5 cm and +2.8 cm, which coincide on the active fault area. In order to confirm these obtained results, we are expecting to acquire and more detail processing of L-band ALOS/PALSAR interferograms. The second object of this study is aiming to apply the Triherence method developed by ENVISAT/ASAR data to generate the stable phase points to extract the small hazardous area of landslides. According to previous results, varying of stable phase point number that indicates the tiny deformation caused by the existence of landslide precursor. We plan to develop new Triherence method using ALOS/PALSAR data to apply landslide areas in Taiwan, Malaysia and Japan. Finally, we plan to compare with GPS displacements at the hazardous areas. This is the step to obtain ground surface hazardous map by comparing several geophysical data such as Earthquake Epicenters, GPS surveys, EDM surveys and Seismic Exploration Survey. Using above related Earth's Surface Deformation Information, we plan to extract effective and useful information for disaster prevention and mitigation.

KW - disaster prevention

KW - SAR interferometry

KW - triherence

M3 - Conference article in proceedings

SN - 978-4-906653-04-1

BT - Proceedings of the 1st Joint PI Symposium of ALOS Data Nodes for ALOS Science Program in Kyoto

CY - Japan

ER -

Iwashita A, Morohoshi T, Iso S, Matsuoka M, Häme T, Rauste Y et al. Consideration of Surface Information Extraction Method for Disaster Prevention using ALOS PALSAR Interferometry. In Proceedings of the 1st Joint PI Symposium of ALOS Data Nodes for ALOS Science Program in Kyoto. Japan. 2008. DIS04