Mapping of Land Subsidence Induced by Groundwater Extraction in Urban Areas as Basic Data for Sustainability Countermeasures

Hutabarat, Lolom Evalita; Ilyas, Tommy

doi:10.14716/ijtech.v8i6.754

Cited by 13 publications

(5 citation statements)

References 10 publications

(11 reference statements)

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“…Human‐induced subsidence that accompanies land reclamation, changes in sediment supply, and associated solid‐earth loading due to dam construction and groundwater extraction (Hung et al, 2018) can also be important and need to be considered in detailed SLR risk and adaptation assessments where locally relevant. The coast of south, southeast, and east Asia is a hotspot for these issues due to the large population and extensive sedimentary coastal flood plains (Besset et al, 2016; Erkens et al, 2015; Hutabarat & Ilyas, 2017). Forecasting future human‐induced subsidence is difficult (Erkens & Sutanudjaja, 2015), and the best available approach is a guided sensitivity analysis drawing on local measurements and experience or analogs from similar settings if this is not possible.…”

Section: Methods For Sea‐level Scenario Developmentmentioning

confidence: 99%

Integrating new sea‐level scenarios into coastal risk and adaptation assessments: An ongoing process

Nicholls

Hanson

Lowe

et al. 2021

WIREs Climate Change

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The release of new and updated sea‐level rise (SLR) information, such as from the Intergovernmental Panel on Climate Change (IPCC) Assessment Reports, needs to be better anticipated in coastal risk and adaptation assessments. This requires risk and adaptation assessments to be regularly reviewed and updated as needed, reflecting the new information but retaining useful information from earlier assessments. In this paper, updated guidance on the types of SLR information available is presented, including for sea‐level extremes. An intercomparison of the evolution of the headline projected ranges across all the IPCC reports show an increase from the fourth and fifth assessments to the most recent “Special Report on the Ocean and Cryosphere in a Changing Climate” assessment. IPCC reports have begun to highlight the importance of potential high‐end sea‐level response, mainly reflecting uncertainties in the Greenland/Antarctic ice sheet components, and how this might be considered in scenarios. The methods that are developed here are practical and consider coastal risk assessment, adaptation planning, and long‐term decision‐making to be an ongoing process and ensure that despite the large uncertainties, pragmatic adaptation decisions can be made. It is concluded that new sea‐level information should not be seen as an automatic reason for abandoning existing assessments, but as an opportunity to review (i) the assessment's robustness in the light of new science and (ii) the utility of proactive adaptation and planning strategies, especially over the more uncertain longer term. This article is categorized under: Assessing Impacts of Climate Change > Scenario Development and Application

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Section: Methods For Sea‐level Scenario Developmentmentioning

confidence: 99%

Integrating new sea‐level scenarios into coastal risk and adaptation assessments: An ongoing process

Nicholls

Hanson

Lowe

et al. 2021

WIREs Climate Change

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“…Groundwater pumping from confined aquifers can lead to subsidence (i.e., vertical lowering) of the land surface. Subsidence has been reported in major metropolitan cities in many countries (e.g., Bangkok, Taipei, Beijing, Shanghai, Calcutta, Manila, Hanoi, Jakarta, in California, Houston, Mexico City, Osaka and Tokyo (Bagheri et al., 2021; Hutabarat & Ilyas, 2017). Subsidence increases SLR risk since it increases coastal flood exposure in particularly densely populated areas, that is, cities and deltas (Nicholls et al., 2021).…”

Section: Processes and Definitionsmentioning

confidence: 99%

Groundwater Rise and Associated Flooding in Coastal Settlements Due To Sea‐Level Rise: A Review of Processes and Methods

2022

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Coastal settlements are experiencing the effects of climate change‐induced sea‐level rise, including a significant but often poorly‐characterized impact on groundwater. The shallow water tables present in the built coastal environment contribute to an increased risk from natural hazards such as groundwater flooding and saltwater intrusion. Historical urban development was accompanied by impacts on shallow groundwater, and in the future subsurface environments, including underground infrastructure, will face additional pressure. This article reviews processes of the coastal groundwater zone and simulation tools used to evaluate possible impacts of sea‐level rise. The benefits and limitations of the two main methods to assess coastal groundwater rise and contribution to flooding are discussed using studies and investigations up to 2021. The review addresses challenges associated with the simulation tools to evaluate changes in urban hydrogeology due to sea‐level rise. The models reviewed do not specifically estimate groundwater contribution to land‐surface flooding. We highlight a critical need for methodology comparisons between spatial interpolation and numerical tools that will guide future work. An adequate validation of assessment methods is required and will be supported by improved coastal groundwater monitoring networks focused on water quality, saltwater intrusion, and continuous groundwater levels records. From current monitoring practices, evidence for groundwater rise with rising sea level is not widely observed at present. New monitoring sites are recommended near the coastline and tidally influenced surface water bodies, to better evaluate the rise of the water table and impacts on infrastructure.

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“…Thus, PSInSAR can modify and improve the measurement of deformations, from 10-20 mm to 2-3 mm [20]. PSInSAR has a wide range of applications in monitoring geohazards, such as mapping displacements induced by seismic activities, landslides, volcanic swelling, ground subsidence caused by groundwater extraction, underground mining activities, and subway tunnel construction [5,21,22]. Similar research has been widely conducted in urban areas using the PSInSAR technique to monitor ground subsidence using Sentinel-1 data in Algeria [23], Beijing [24,25], London [26], Los Angeles [27], Mashhad (Middle East) [28], coastal areas of Africa [29], Spain [30], etc.…”

Section: Introductionmentioning

confidence: 99%

Monitoring Subsidence in Urban Area by PSInSAR: A Case Study of Abbottabad City, Northern Pakistan

Khan

Afzal

et al. 2021

Remote Sensing

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Globally, major cities are experiencing fast settlement growth, which threatens the equilibrium of socio-ecosystems. In Pakistan, Abbottabad city in particular is experiencing fast urban growth. The main source of daily water usage for the population in these types of cities is groundwater (tube–wells). Excessive pumping and the high need for ground water for the local community are affecting the subsurface sustainability. In this study, the persistent scatterer interferometry synthetic aperture radar (PSInSAR) technique with synthetic aperture radar (SAR) images acquired from the Sentinel-1 were used to monitor ground subsidence in Abbottabad City, Northern Pakistan. To estimate the ground subsidence in Abbottabad City, SARPROZ software was employed to process a series of Sentinel-1 images, acquired from March 2017 to September 2019, along both descending and ascending orbit tracks. The subsidence observed in the results shows a significant increase from 2017 to 2019. The subsidence map shows that, during 2017, the subsidence was −30 mm/year and about −85 mm/year in 2018. While during 2019, the subsidence reached −150 mm/year. Thus, it has seen that, in the study area, the subsidence during these years increased with mean subsidence 60 mm/year. The overall trend of subsidence showed considerably high values in the center of the city, while areas away from the center of the city experienced low subsidence. Overall, the adopted methodology can be used successfully for detecting, mapping, and monitoring land surfaces vulnerable to subsidence. This will facilitate efficient planning, designing of surface infrastructure, and mitigation management of subsidence-induced hazards.

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Mapping of Land Subsidence Induced by Groundwater Extraction in Urban Areas as Basic Data for Sustainability Countermeasures

Cited by 13 publications

References 10 publications

Integrating new sea‐level scenarios into coastal risk and adaptation assessments: An ongoing process

Integrating new sea‐level scenarios into coastal risk and adaptation assessments: An ongoing process

Groundwater Rise and Associated Flooding in Coastal Settlements Due To Sea‐Level Rise: A Review of Processes and Methods

Monitoring Subsidence in Urban Area by PSInSAR: A Case Study of Abbottabad City, Northern Pakistan

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