Land subsidence in the United States

Galloway, Devin L.; Jones, David R.; Ingebritsen, S.E.

doi:10.3133/fs16500

Cited by 102 publications

(131 citation statements)

References 3 publications

(3 reference statements)

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“…With limited surface water resources, groundwater has been a major water supply for agricultural activities in the Central Valley region. Excessive groundwater pumping has led to steady decreasing water tables (Faunt 2009;Scanlon et al 2012a, b) and also to significant ground subsidence (Galloway et al 1999) in the region.…”

Section: Groundwater Depletion In the California Central Valleymentioning

confidence: 99%

Groundwater Storage Changes: Present Status from GRACE Observations

et al. 2015

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Satellite gravity measurements from the Gravity Recovery and Climate Experiment (GRACE) provide quantitative measurement of terrestrial water storage (TWS) changes with unprecedented accuracy. Combining GRACE-observed TWS changes and independent estimates of water change in soil and snow and surface reservoirs offers a means for estimating groundwater storage change. Since its launch in March 2002, GRACE time-variable gravity data have been successfully used to quantify long-term groundwater storage changes in different regions over the world, including northwest India, the High Plains Aquifer and the Central Valley in the USA, the North China Plain, Middle East, and southern Murray-Darling Basin in Australia, where groundwater storage has been significantly depleted in recent years (or decades). It is difficult to rely on in situ groundwater measurements for accurate quantification of large, regional-scale groundwater storage changes, especially at long timescales due to inadequate spatial and temporal coverage of in situ data and uncertainties in storage coefficients. The now nearly 13 years of GRACE gravity data provide a successful and unique complementary tool for monitoring and measuring groundwater changes on a global and regional basis. Despite the successful applications of GRACE in studying global groundwater storage change, there are still some major challenges limiting the application and interpretation of GRACE data. In this paper, we present an overview of GRACE applications in groundwater studies and discuss if and how the main challenges to using GRACE data can be addressed.

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Section: Groundwater Depletion In the California Central Valleymentioning

confidence: 99%

Groundwater Storage Changes: Present Status from GRACE Observations

et al. 2015

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“…Land subsidence is a gradual settling or sudden sinking of the earth's surface due to movement of earth materials [1] or an abrupt depression of local ground surface [2]. The relation between land subsidence and urban or rural areas is twofold: first, if land subsidence occurs on urban land, it can severely damage or even lead to the collapse of buildings and damage plantations in rural land.…”

Section: Introductionmentioning

confidence: 99%

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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“…Other methods that are often utilized to monitor land subsidence include borehole extensometers and permanent GPS stations that are widely utilized by groups such as the United States Geological Survey (LSCE et al, 2014;Galloway et al, 1999;Poland and Lofgren, 1984). These methods often provide highly accurate point-source data, however the cost of systems is often prohibitive for most applications.…”

Section: Other Methodsmentioning

confidence: 99%

Methods for monitoring land subsidence and earth fissures in the Western USA

2015

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Abstract. Depletion of groundwater resources in many deep alluvial basin aquifers in the Western USA is causing land subsidence, as it does in many regions worldwide. Land subsidence can severely and adversely impact infrastructure by changing the ground elevation, ground slope (grade) and through the development of ground cracks known as earth fissures that can erode into large gullies. Earth fissures have the potential to compromise the foundations of dams, levees, and other infrastructure and cause failure.Subsequent to an evaluation of the overall subsidence experienced in the vicinity of subsidence-impacted infrastructure, a detailed investigation to search for earth fissures, and design and/or mitigation of potentially effected infrastructure, a focused monitoring system should be designed and implemented. Its purpose is to provide data, and ultimately knowledge, to reduce the potential adverse impacts of land subsidence and earth fissure development to the pertinent infrastructure. This risk reduction is realized by quantifying the rate and distribution of ground deformation, and to detect ground rupture if it occurs, in the vicinity of the infrastructure.The authors have successfully designed and implemented monitoring systems capable of quantifying rates and distributions of ground subsidence and detection of ground rupture at multiple locations throughout the Western USA for several types of infrastructure including dams, levees, channels, basins, roadways, and mining facilities. Effective subsidence and earth fissure monitoring requires understanding and quantification of historic subsidence, estimation of potential future subsidence, delineation of the risk for earth fissures that could impact infrastructure, and motivation and resources to continue monitoring through time. A successful monitoring system provides the means to measure ground deformation, grade changes, displacement, and anticipate and assess the potential for earth fissuring. Employing multiple methods, a monitoring strategy utilizes an integrated approach, including both regional and local measurements.Various methods implemented include conventional practices and proven, instrumented in-ground sensing systems. The conventional techniques include repeat optical levelling and global positioning system (GPS) surveys, ground reconnaissance, photo-geological analysis, groundwater monitoring, and tape-extensometers. Advanced techniques include the processing and interpretation of differential interferograms of repeat-pass, satellite-based synthetic aperture radar data (InSAR), borehole tiltmeters, microseismic arrays, excavation of monitoring trenches, and time-domain reflectometry (TDR).

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Land subsidence in the United States

Cited by 102 publications

References 3 publications

Groundwater Storage Changes: Present Status from GRACE Observations

Groundwater Storage Changes: Present Status from GRACE Observations

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

Methods for monitoring land subsidence and earth fissures in the Western USA

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