نتایج جستجو برای: subsidence

تعداد نتایج: 4875  

Land subsidence due to groundwater resources extraction is one of the abundance events occurred in Iran. If it is not properly managed, this phenomenon can cause irreparable damage to the affected areas. Population growth and agricultural technology have also led to overexploitation of the groundwater resources in some parts of Iran. The rate of land subsidence due to overexploitation of the  g...

Journal: :Int. J. Applied Earth Observation and Geoinformation 2014
Mokhamad Yusup Nur Khakim Takeshi Tsuji Toshifumi Matsuoka

Land subsidence in the Bandung basin, West Java, Indonesia, is characterized based on differential interferometric synthetic aperture radar (DInSAR) and interferometric point target analysis (IPTA). We generated interferograms from 21 ascending SAR images over the period 1 January 2007 to 3 March 2011. The estimated subsidence history shows that subsidence continuously increased reaching a cumu...

2010
WANG Ping

In this paper, the decision-making information of subsidence area for twenty years is extracted, using Landsat multi-band and multitemporal remote sensing data, SPOT 5 texture features, DEM elevation, the methods of data fusion and principal component analysis and GIS technology, thereby the spatial and temporal distribution of change of subsidence area in mining is acquired from years 1987 to ...

Journal: :Remote Sensing 2017
Lv Zhou Jiming Guo Jiyuan Hu Jiangwei Li Yongfeng Xu Yuanjin Pan Miao Shi

The Terrain Observation with Progressive Scans (TOPS) acquisition mode of Sentinel-1A provides a wide coverage per acquisition and features a repeat cycle of 12 days, making this acquisition mode attractive for surface subsidence monitoring. A few studies have analyzed wide-coverage surface subsidence of Wuhan based on Sentinel-1A data. In this study, we investigated wide-area surface subsidenc...

2017
Yongyong Li Huili Gong Lin Zhu Xiaojuan Li Hongjie Xie

Beijing is located on multiple alluvial-pluvial fans with thick Quaternary unconsolidated sediments. It has suffered serious groundwater drawdown and land subsidence due to groundwater exploitation. This study aimed to introduce geographical distribution measure methods into land subsidence research characterizing, geographically, land subsidence, groundwater drawdown, and compressible layer th...

2005

The evolution of surface subsidence is an important focus of study above Molycorp, Inc.’s newest block cave at the Questa molybdenum mine near Taos, New Mexico. The case study compares mature glory hole subsidence over the Goathill Orebody and subsidence emerging in its earliest stage over the new D Orebody block cave. Subsidence above the D Orebody was first detected in April 2003, 30 months a...

Journal: :Remote Sensing 2016
Mi Chen Roberto Tomás Zhenhong Li Mahdi Motagh Tao Li Leyin Hu Huili Gong Xiaojuan Li Jun Yu Xulong Gong

Beijing is one of the most water-stressed cities in the world. Due to over-exploitation of groundwater, the Beijing region has been suffering from land subsidence since 1935. In this study, the Small Baseline InSAR technique has been employed to process Envisat ASAR images acquired between 2003 and 2010 and TerraSAR-X stripmap images collected from 2010 to 2011 to investigate land subsidence in...

Journal: :Remote Sensing 2015
Jesús Pacheco-Martínez Enrique Cabral-Cano Shimon Wdowinski Martín Hernández-Marín José Ángel Ortiz-Lozano Mario Eduardo Zermeño-de-León

In this work we present an application of InSAR and gravimetric surveys for risk management related to land subsidence and surface ground faulting generation. A subsidence velocity map derived from the 2007–2011 ALOS SAR imagery and a sediment thicknesses map obtained from the inversion of gravimetric data were integrated with a surface fault map to produce a subsidence hazard zoning in the cit...

2013
Bing Yu Guoxiang Liu Rui Zhang Hongguo Jia Tao Li Xiaowen Wang Keren Dai Deying Ma

Ground subsidence is one of the key factors damaging transportation facilities, e.g., road networks consisting of highways and railways. In this paper, we propose to apply the persistent scatterer synthetic aperture radar interferometry (PS-InSAR) approach that uses highresolution TerraSAR-X (TSX) imagery to extract the regional scale subsidence rates (i.e., average annual subsidence in mm/year...

2014
Feifei Qu Qin Zhang Zhong Lu Chaoying Zhao Chengsheng Yang Jing Zhang

a r t i c l e i n f o Keywords: InSAR StaMPS SBAS Land subsidence Ground fissure Fault Geohazards Xi'an Xi'an, China has been undergoing significant land subsidence along with ground fissure development. These geohazards have brought about severe damages to buildings, bridges and other facilities. In order to warn of and mitigate disasters, it is urgently necessary to obtain the latest rate, ex...

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