Sinking cities in Indonesia: ALOS PALSAR detects rapid subsidence due to groundwater and gas extraction

Chaussard, Estelle; Amelung, F.; Abidin, Hasanuddin Z.; Hong, Sang Hoon

doi:10.1016/j.rse.2012.10.015

Cited by 474 publications

(327 citation statements)

References 43 publications

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“…Therefore, the InSAR technique can serve as a good option in mapping the surface deformation of a large-scale area. Actually, it has been widely used and its superiorities shown in detecting time-series surface deformation over many peninsulas and delta areas, such as the Mexico City [8], Shanghai [9], and Indonesia [10]. Traditional temporal InSAR methods, such as Persistent Scatterer Interferometry (PS-InSAR), IPTA (Interferometric Point Target Analysis), and Small Baseline Subset (SBAS-InSAR) have been applied in detecting surface deformation, but they need abundant SAR images in data processing [11][12][13].…”

Section: Hydrogeological Settingmentioning

confidence: 99%

Subsidence Evolution of the Leizhou Peninsula, China, Based on InSAR Observation from 1992 to 2010

Feng

Peng

2017

Applied Sciences

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Abstract:Over the past two decades, the Leizhou Peninsula has suffered from many geological hazards and great property losses caused by land subsidence. However, the absence of a deformation map of the whole peninsula has impeded the government in making the necessary decisions concerning hazard prevention and mitigation. This study aims to provide the evolution of land deformation (subsidence and uplift) in the whole peninsula from 1992 to 2010. A modified stacking procedure is proposed to map the surface deformation with JERS, ENVISAT, and ALOS1 images. The map shows that the land subsidence mainly occurs along the coastline with a maximum velocity of 32 mm/year and in a wide range of inland arable lands with a velocity between 10 and 19 mm/year. Our study suggests that there is a direct correlation between the subsidence and the surface geology. Besides, the observed subsidence in urban areas, caused by groundwater overexploitation for domestic and industrial use, is moving from urban areas to suburban areas. In nonurban areas, groundwater extraction for aquaculture and arable land irrigation are the main reason for land subsidence, which accelerates saltwater intrusion and coastline erosion if regular surface deformation measurements and appropriate management measures are not taken.

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Section: Hydrogeological Settingmentioning

confidence: 99%

Subsidence Evolution of the Leizhou Peninsula, China, Based on InSAR Observation from 1992 to 2010

Feng

Peng

2017

Applied Sciences

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“…Second, the natural consolidation of sediments can be increased by the weight of construction on top of the land [3] [4]. Agricultural expansion and a failure in the plantation system might also worsen the subsidence.…”

Section: Introductionmentioning

confidence: 99%

“…Some areas of Jakarta sink about 1 -15 centimeter per year, while other areas sink up to 20 -28 centimeter per year [4]. In addition, the rapid population growth in Jakarta of about 136 thousand people per year triggers additional groundwater extraction, which in turn increases land subsidence [3] [4]. Semarang City experiences land subsidence of about 8 -11 centimeter per year [5], caused by a combination of alluvium soil consolidation, massive groundwater extraction and a heavy construction load [6] [7].…”

Section: Introductionmentioning

confidence: 99%

“…Semarang City experiences land subsidence of about 8 -11 centimeter per year [5], caused by a combination of alluvium soil consolidation, massive groundwater extraction and a heavy construction load [6] [7]. In both cases, the intensive growth of industrial areas, settlements and population, leads to increased demand for clean water extracted with confined aquifers, and accelerates land subsidence [3] [8]. In addition, the combination of the land subsidence and sea level rise in the coastal area further increases the area's exposure to land subsidence, since the rise of the sea level renders coastal areas more unstable.…”

Section: Introductionmentioning

confidence: 99%

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Fighting the Ignorance: Public Authorities’ and Land Users’ Responses to Land Subsidence in Indonesia

Saputra¹,

Hartmann²,

Zoomers³

et al. 2017

AJCC

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Land subsidence can have a considerable impact on the socio-economic viability of areas. In urban areas, land subsidence tends to damage buildings and infrastructures gradually, while in rural peat land it slowly destroys vegetation. The damages will worsen since climate change has further implications for the areas affected by land subsidence. In Indonesia, the response to land subsidence varies in different areas in terms of awareness, urgency and action on the part of both public authorities and land users. This paper systematically investigates these varied responses in urban and rural peat land areas. Interviews with experts and surveys of 330 land users in selected sub-districts were conducted and further supplemented by focus group discussions. We found that both the public authorities as well as the land users' responses were considered as of limited value to contest land subsidence. We suggest that the endorsement of land users' response into governmental policies would make a significant difference in improving land subsidence management.

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“…MT-InSAR has been successfully and extensively used in monitoring the deformations Remote Sens. 2017, 9, 1129 2 of 22 induced by exploitation of underground fluids, such as groundwater [7,[14][15][16][17][18][19][20][21], oil [22][23][24][25][26][27][28][29][30][31], natural gas [14,30,[32][33][34][35][36][37], and geothermal [38][39][40][41][42][43][44][45], because of its low cost, wide spatial coverage, high measurement precision, and fine spatial resolution. However, MT-InSAR can capture only one-dimensional (1-D) time-series deformation that includes the sum of projections on the line-of-sight (LOS) direction of actual 3-D time series ground deformations.…”

Section: Introductionmentioning

confidence: 99%

Deriving 3-D Time-Series Ground Deformations Induced by Underground Fluid Flows with InSAR: Case Study of Sebei Gas Fields, China

Liu

Sun

et al. 2017

Remote Sensing

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Multi-temporal Interferometric Synthetic Aperture Radar (MT-InSAR) technique has proven to be a powerful tool for the monitoring of time-series ground deformations along the line-of-sight (LOS) direction. However, the one-dimensional (1-D) measurements cannot provide comprehensive information for interpreting the related geo-hazards. Recently, a novel method has been proposed to map the three-dimensional (3-D) deformation associated with underground fluid flows based on single-track InSAR LOS measurements and the deformation modeling associated with the Green's function. In this study, the method is extended in temporal domain by exploiting the MT-InSAR measurements, and applied for the first time to investigate the 3-D time series deformation over Sebei gas field in Qinghai, Northwest China with 37 Sentinel-1 images acquired during October 2014-July 2017. The estimated 3-D time series deformations provide a more complete view of ongoing deformation processes as compared to the 1-D time series deformations or the 3-D deformation velocities, which is of great importance for assessing the possible geohazards. In addition, the extended method allows for the retrieval of time series of fluid volume changes due to the gas extraction in the Sebei field, which agrees well with those from the PetroChina Qinghai Oilfield Company Yearbooks (PQOCYs). This provides a new way to study the variations of subsurface fluids at unprecedented resolution.

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Sinking cities in Indonesia: ALOS PALSAR detects rapid subsidence due to groundwater and gas extraction

Cited by 474 publications

References 43 publications

Subsidence Evolution of the Leizhou Peninsula, China, Based on InSAR Observation from 1992 to 2010

Subsidence Evolution of the Leizhou Peninsula, China, Based on InSAR Observation from 1992 to 2010

Fighting the Ignorance: Public Authorities’ and Land Users’ Responses to Land Subsidence in Indonesia

Deriving 3-D Time-Series Ground Deformations Induced by Underground Fluid Flows with InSAR: Case Study of Sebei Gas Fields, China

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