TY - GEN
T1 - The analysis of land subsidence in Tianjin basing on interferometric synthetic aperture radar (InSAR) technique
AU - Dang, Yanan
AU - Gong, Huili
AU - Li, Xiaojuan
AU - Chen, Beibei
AU - Li, Jiwei
PY - 2011
Y1 - 2011
N2 - Tianjin is one of the cities in the north of China where the land subsidence has most seriously developed. The land subsidence has been lasting for 50 years. In the paper, we use permanent scatterers interferometric synthetic aperture radar (PS-InSAR) technique to detect and measure ground movement in this area. The time serial measured results demonstrate that land subsidence in the study area, is controlled by geological tectonics, especially in south deformation areas. The detail information of deformation shows that the tendency and spatial extent of subsidence is controlled by geologic structures. Comparing the subsidence extracted by PS-InSAR technique to the leveling survey, both of them are mostly consistent. Meanwhile, it is revealled that different aquifers make different contributions to land subsidence. At last, we should take measures including set limit to groundwater exploitation, save water, and replenish groundwater artificially, also some new techniques (eg,InSAR) in measuring ground deformation are used to prevent and slow the land subsidence.
AB - Tianjin is one of the cities in the north of China where the land subsidence has most seriously developed. The land subsidence has been lasting for 50 years. In the paper, we use permanent scatterers interferometric synthetic aperture radar (PS-InSAR) technique to detect and measure ground movement in this area. The time serial measured results demonstrate that land subsidence in the study area, is controlled by geological tectonics, especially in south deformation areas. The detail information of deformation shows that the tendency and spatial extent of subsidence is controlled by geologic structures. Comparing the subsidence extracted by PS-InSAR technique to the leveling survey, both of them are mostly consistent. Meanwhile, it is revealled that different aquifers make different contributions to land subsidence. At last, we should take measures including set limit to groundwater exploitation, save water, and replenish groundwater artificially, also some new techniques (eg,InSAR) in measuring ground deformation are used to prevent and slow the land subsidence.
KW - Groundwater
KW - Interferometric Synthetic Aperture Radar (InSAR)
KW - Land subsidence
KW - Permanent Scatterers (PS)
UR - http://www.scopus.com/inward/record.url?scp=80052953816&partnerID=8YFLogxK
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U2 - 10.1109/ICMT.2011.6001939
DO - 10.1109/ICMT.2011.6001939
M3 - Conference contribution
AN - SCOPUS:80052953816
SN - 9781612847740
T3 - 2011 International Conference on Multimedia Technology, ICMT 2011
SP - 5116
EP - 5120
BT - 2011 International Conference on Multimedia Technology, ICMT 2011
T2 - 2nd International Conference on Multimedia Technology, ICMT 2011
Y2 - 26 July 2011 through 28 July 2011
ER -