A time-series observation of ground subsidence at Ulsan area using SAR interferometry

Min Jeong Jo; Joong Sun Won; Sang Wan Kim

A time-series observation of ground subsidence at Ulsan area using SAR interferometry

Min Jeong Jo, Joong Sun Won, Sang Wan Kim

Department of Earth System Sciences

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The purpose of this study is analysis of surface deformation at Ulsan area using SAR interferometry technique (InSAR). Time-series observation method, Small BAseline Subset (SBAS) and Persistent Scatterer Interferometric SAR (PSInSAR), was also applied for analysis of subtle subsidence which occurred consistently for a long term period. The used dataset consists of twenty-nine SAR images from May 2006 to March 2011. Preliminary results of this study indicate that there are some subsiding districts in Ulsan area. From the mean deformation rate map, one of the most noticeable districts is southern parts of the city where deformation rate decrease gradually from the riverfront of the Taehwa River. The maximum deformation rate estimated from SBAS analysis is -4.4±0.4 cm/yr. Similarly significant rate of -4.0cm/yr was observed from the PSInSAR method on the riverfront and near the Ulsan fault. These results, however, are not yet supported by comparison with the geodetic data. It should be carried out for the more reliable results in further researches.

Original language	English
Title of host publication	2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011
Pages	834-836
Number of pages	3
Publication status	Published - 2011 Dec 22
Event	2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011 - Seoul, Korea, Republic of Duration: 2011 Sep 26 → 2011 Sep 30

Publication series

Name	2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011

Other

Other	2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011
Country	Korea, Republic of
City	Seoul
Period	11/9/26 → 11/9/30

All Science Journal Classification (ASJC) codes

Computer Networks and Communications
Communication

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Jo, M. J., Won, J. S., & Kim, S. W. (2011). A time-series observation of ground subsidence at Ulsan area using SAR interferometry. In 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011 (pp. 834-836). [6086939] (2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011).

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title = "A time-series observation of ground subsidence at Ulsan area using SAR interferometry",

abstract = "The purpose of this study is analysis of surface deformation at Ulsan area using SAR interferometry technique (InSAR). Time-series observation method, Small BAseline Subset (SBAS) and Persistent Scatterer Interferometric SAR (PSInSAR), was also applied for analysis of subtle subsidence which occurred consistently for a long term period. The used dataset consists of twenty-nine SAR images from May 2006 to March 2011. Preliminary results of this study indicate that there are some subsiding districts in Ulsan area. From the mean deformation rate map, one of the most noticeable districts is southern parts of the city where deformation rate decrease gradually from the riverfront of the Taehwa River. The maximum deformation rate estimated from SBAS analysis is -4.4±0.4 cm/yr. Similarly significant rate of -4.0cm/yr was observed from the PSInSAR method on the riverfront and near the Ulsan fault. These results, however, are not yet supported by comparison with the geodetic data. It should be carried out for the more reliable results in further researches.",

author = "Jo, {Min Jeong} and Won, {Joong Sun} and Kim, {Sang Wan}",

year = "2011",

month = dec,

day = "22",

language = "English",

isbn = "9788993246179",

series = "2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011",

pages = "834--836",

booktitle = "2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011",

note = "2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011 ; Conference date: 26-09-2011 Through 30-09-2011",

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Jo, MJ, Won, JS & Kim, SW 2011, A time-series observation of ground subsidence at Ulsan area using SAR interferometry. in 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011., 6086939, 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011, pp. 834-836, 2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011, Seoul, Korea, Republic of, 11/9/26.

A time-series observation of ground subsidence at Ulsan area using SAR interferometry. / Jo, Min Jeong; Won, Joong Sun; Kim, Sang Wan.

2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011. 2011. p. 834-836 6086939 (2011 3rd International Asia-Pacific Conference on Synthetic Aperture Radar, APSAR 2011).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N2 - The purpose of this study is analysis of surface deformation at Ulsan area using SAR interferometry technique (InSAR). Time-series observation method, Small BAseline Subset (SBAS) and Persistent Scatterer Interferometric SAR (PSInSAR), was also applied for analysis of subtle subsidence which occurred consistently for a long term period. The used dataset consists of twenty-nine SAR images from May 2006 to March 2011. Preliminary results of this study indicate that there are some subsiding districts in Ulsan area. From the mean deformation rate map, one of the most noticeable districts is southern parts of the city where deformation rate decrease gradually from the riverfront of the Taehwa River. The maximum deformation rate estimated from SBAS analysis is -4.4±0.4 cm/yr. Similarly significant rate of -4.0cm/yr was observed from the PSInSAR method on the riverfront and near the Ulsan fault. These results, however, are not yet supported by comparison with the geodetic data. It should be carried out for the more reliable results in further researches.

AB - The purpose of this study is analysis of surface deformation at Ulsan area using SAR interferometry technique (InSAR). Time-series observation method, Small BAseline Subset (SBAS) and Persistent Scatterer Interferometric SAR (PSInSAR), was also applied for analysis of subtle subsidence which occurred consistently for a long term period. The used dataset consists of twenty-nine SAR images from May 2006 to March 2011. Preliminary results of this study indicate that there are some subsiding districts in Ulsan area. From the mean deformation rate map, one of the most noticeable districts is southern parts of the city where deformation rate decrease gradually from the riverfront of the Taehwa River. The maximum deformation rate estimated from SBAS analysis is -4.4±0.4 cm/yr. Similarly significant rate of -4.0cm/yr was observed from the PSInSAR method on the riverfront and near the Ulsan fault. These results, however, are not yet supported by comparison with the geodetic data. It should be carried out for the more reliable results in further researches.

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