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ANALYSIS OF THE TREND OF THE DEFORMATION AROUND KANTO REGION ESTIMATED BY TIME SERIES OF PALSAR-2 DATA

التفاصيل البيبلوغرافية
العنوان: ANALYSIS OF THE TREND OF THE DEFORMATION AROUND KANTO REGION ESTIMATED BY TIME SERIES OF PALSAR-2 DATA
المؤلفون: T. Nonaka, T. Asaka, K. Iwashita, F. Ogushi
المصدر: The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XLII-3-W8, Pp 287-291 (2019)
بيانات النشر: Copernicus Publications, 2019.
سنة النشر: 2019
المجموعة: LCC:Technology
LCC:Engineering (General). Civil engineering (General)
LCC:Applied optics. Photonics
مصطلحات موضوعية: Technology, Engineering (General). Civil engineering (General), TA1-2040, Applied optics. Photonics, TA1501-1820
الوصف: The South Kanto gas field contains natural gas dissolved in water. In the past, large-scale land subsidence has occurred due to the extraction of this natural gas. Therefore, continuous and accurate monitoring for subsidence using satellite remote sensing is essential to prevent any extreme subsidence events, particularly in urban areas, and ensure the safety of residences. In this study, we adopted the small baseline subset (SBAS) method to understand the subsidence trend. We used Advanced Land Observing Satellite (ALOS)-2 Phased Array type L-band Synthetic Aperture Radar (PALSAR-2) data from 2015 to 2019 for this purpose. The results show that the maximum displacement around the Kujyukuri area is more than 10 mm/year and the mean displacement rate for 2015 to 2019 is -1.4 ± 3.2 mm/year; this value is not as large as some obtained with past PALSAR observations. Comparison of our results with PALSAR observations shows that the number of distributed targets is fewer and the root mean square error of each time-series displacement value is larger. Further quantitative analysis is required to discuss the reliability of the SBAS-derived displacement rates by PALSAR-2.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1682-1750
2194-9034
Relation: https://www.int-arch-photogramm-remote-sens-spatial-inf-sci.net/XLII-3-W8/287/2019/isprs-archives-XLII-3-W8-287-2019.pdf; https://doaj.org/toc/1682-1750; https://doaj.org/toc/2194-9034
DOI: 10.5194/isprs-archives-XLII-3-W8-287-2019
URL الوصول: https://doaj.org/article/0a30f20ea1694668971a3f1eb9ec6c00
رقم الأكسشن: edsdoj.0a30f20ea1694668971a3f1eb9ec6c00
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16821750
21949034
DOI:10.5194/isprs-archives-XLII-3-W8-287-2019