Spatiotemporal evolution of land subsidence around a subway using InSAR time-series and the entropy method
The underground railway network of Beijing City, China, which is an important urban infrastructure, has burgeoned with the expansion of the city. However, the influence of subway construction and operation on local subsidence has received minimal attention. By analyzing the Radarsat-2 synthetic aper...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2017-01-01
|
| Series: | GIScience & Remote Sensing |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/15481603.2016.1257297 |
| _version_ | 1797679123741540352 |
|---|---|
| author | Wen-Feng Chen Hui-Li Gong Bei-Bei Chen Kai-Si Liu Mingliang Gao Chao-Fan Zhou |
| author_facet | Wen-Feng Chen Hui-Li Gong Bei-Bei Chen Kai-Si Liu Mingliang Gao Chao-Fan Zhou |
| author_sort | Wen-Feng Chen |
| collection | DOAJ |
| description | The underground railway network of Beijing City, China, which is an important urban infrastructure, has burgeoned with the expansion of the city. However, the influence of subway construction and operation on local subsidence has received minimal attention. By analyzing the Radarsat-2 synthetic aperture radar satellite data, and using persistent scatterer interferometry, we revealed the land subsidence characteristics along the Beijing Subway Line 6. In the context of land subsidence, the expectation (Ex) reflects the overall level of local land subsidence while the entropy (En) reflects the degree of nonuniformity of local land subsidence in time and space. By comparing the changes in Ex and En, we estimated the spatial range of the influence of the subway on local land subsidence. The influenced area was mainly located between 60 m north of the subway line and 80 m south of the subway line. Land subsidence was most strongly altered during subway construction. During operation of the subway, the deformation rates along the subway increased slightly in the first two years and were then stabilized. |
| first_indexed | 2024-03-11T23:09:50Z |
| format | Article |
| id | doaj.art-d7ccae573b8a4e0bb1c614451f9303b0 |
| institution | Directory Open Access Journal |
| issn | 1548-1603 1943-7226 |
| language | English |
| last_indexed | 2024-03-11T23:09:50Z |
| publishDate | 2017-01-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | GIScience & Remote Sensing |
| spelling | doaj.art-d7ccae573b8a4e0bb1c614451f9303b02023-09-21T12:34:13ZengTaylor & Francis GroupGIScience & Remote Sensing1548-16031943-72262017-01-01541789410.1080/15481603.2016.12572971257297Spatiotemporal evolution of land subsidence around a subway using InSAR time-series and the entropy methodWen-Feng Chen0Hui-Li Gong1Bei-Bei Chen2Kai-Si Liu3Mingliang Gao4Chao-Fan Zhou5Capital Normal UniversityCapital Normal UniversityCapital Normal UniversityCapital Normal UniversityCapital Normal UniversityCapital Normal UniversityThe underground railway network of Beijing City, China, which is an important urban infrastructure, has burgeoned with the expansion of the city. However, the influence of subway construction and operation on local subsidence has received minimal attention. By analyzing the Radarsat-2 synthetic aperture radar satellite data, and using persistent scatterer interferometry, we revealed the land subsidence characteristics along the Beijing Subway Line 6. In the context of land subsidence, the expectation (Ex) reflects the overall level of local land subsidence while the entropy (En) reflects the degree of nonuniformity of local land subsidence in time and space. By comparing the changes in Ex and En, we estimated the spatial range of the influence of the subway on local land subsidence. The influenced area was mainly located between 60 m north of the subway line and 80 m south of the subway line. Land subsidence was most strongly altered during subway construction. During operation of the subway, the deformation rates along the subway increased slightly in the first two years and were then stabilized.http://dx.doi.org/10.1080/15481603.2016.1257297subwayland subsidenceentropyinsargis |
| spellingShingle | Wen-Feng Chen Hui-Li Gong Bei-Bei Chen Kai-Si Liu Mingliang Gao Chao-Fan Zhou Spatiotemporal evolution of land subsidence around a subway using InSAR time-series and the entropy method GIScience & Remote Sensing subway land subsidence entropy insar gis |
| title | Spatiotemporal evolution of land subsidence around a subway using InSAR time-series and the entropy method |
| title_full | Spatiotemporal evolution of land subsidence around a subway using InSAR time-series and the entropy method |
| title_fullStr | Spatiotemporal evolution of land subsidence around a subway using InSAR time-series and the entropy method |
| title_full_unstemmed | Spatiotemporal evolution of land subsidence around a subway using InSAR time-series and the entropy method |
| title_short | Spatiotemporal evolution of land subsidence around a subway using InSAR time-series and the entropy method |
| title_sort | spatiotemporal evolution of land subsidence around a subway using insar time series and the entropy method |
| topic | subway land subsidence entropy insar gis |
| url | http://dx.doi.org/10.1080/15481603.2016.1257297 |
| work_keys_str_mv | AT wenfengchen spatiotemporalevolutionoflandsubsidencearoundasubwayusinginsartimeseriesandtheentropymethod AT huiligong spatiotemporalevolutionoflandsubsidencearoundasubwayusinginsartimeseriesandtheentropymethod AT beibeichen spatiotemporalevolutionoflandsubsidencearoundasubwayusinginsartimeseriesandtheentropymethod AT kaisiliu spatiotemporalevolutionoflandsubsidencearoundasubwayusinginsartimeseriesandtheentropymethod AT minglianggao spatiotemporalevolutionoflandsubsidencearoundasubwayusinginsartimeseriesandtheentropymethod AT chaofanzhou spatiotemporalevolutionoflandsubsidencearoundasubwayusinginsartimeseriesandtheentropymethod |