Mitigating Losses from Land Subsidence in the United States

Systems, Technical

doi:10.17226/1796

Cited by 13 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Land subsidence afflicts many areas of the world, in particular the ones located along transitional environments, such as coastal areas, deltas, wetlands, and lagoons, which are becoming increasingly vulnerable to flooding, storm surges, salinization, and permanent inundation [6][7][8][9]. In these areas, subsidence can be usually considered as a consequence of a complex combination of natural and anthropogenic factors: the compaction of Holocene sediments, tectonic movements, sinkholes formation, volcanism, thawing permafrost, and the Glacial Isostatic Adjustment (GIA), are generally considered as the main natural sources of land subsidence [10][11][12]; aquifer-system compaction associated with groundwater/oil/natural gas depletion and storage, drainage of organic soils, underground mining, hydro-compaction and stress given by new constructions, are the principal drivers of the anthropogenic land subsidence [13][14][15][16][17][18][19]. Moreover, the effects of climate change can dramatically increase the subsidence-related problems due to the rising of sea levels: the 2012 Intergovernmental Panel on Climate Change (IPCC, www.ipcc.ch, (accessed on 9 April 2021)) report, in fact, highlight an increasing occurrence of coastal and fluvial flooding, extreme weather events and sea-level rise as a consequence of climate change during the XXI century.…”

Section: Introductionmentioning

confidence: 99%

Monitoring of Land Subsidence in the Po River Delta (Northern Italy) Using Geodetic Networks

2021

View full text Add to dashboard Cite

The Po River Delta (PRD, Northern Italy) has been historically affected by land subsidence due to natural processes and human activities, with strong impacts on the stability of the natural ecosystems and significant socio-economic consequences. This paper is aimed to highlight the spatial and temporal evolution of the land subsidence in the PRD area analyzing the geodetic observations acquired in the last decade. The analysis performed using a moving window approach on Continuous Global Navigation Satellite System (CGNSS) time-series indicates that the velocities, in the order of 6 mm/year, are not affected by significant changes in the analyzed period. Furthermore, the use of non-permanent sites belonging to a new GNSS network (measured in 2016 and 2018) integrated with InSAR data (from 2014 to 2017) allowed us to improve the spatial coverage of data points in the PRD area. The results suggest that the land subsidence velocities in the easternmost part of the area of interest are characterized by values greater than the ones located in the western sectors. In particular, the sites located on the sandy beach ridge in the western sector of the study area are characterized by values greater than −5 mm/year, while rates of about −10 mm/year or lower have been observed at the eastern sites located in the Po river mouths. The morphological analysis indicates that the land subsidence observed in the PRD area is mainly due to the compaction of the shallow layers characterized by organic-rich clay and fresh-water peat.

show abstract

Section: Introductionmentioning

confidence: 99%

Monitoring of Land Subsidence in the Po River Delta (Northern Italy) Using Geodetic Networks

2021

View full text Add to dashboard Cite

show abstract

“…Land subsidence can be a naturally driven (e.g., tectonic movements [54] and permafrost processes [55]), or a human-driven process (e.g., aquifer compaction [56][57][58][59] and hydrocarbon extraction [60,61]). Sinkholes are areas that subside naturally due to different mechanisms across many geographical locations [62,63]. In Kenya, the relationship between land subsidence and sinkholes has been generally considered in the context of geologic and geomorphic studies.…”

Section: Discussionmentioning

confidence: 99%

The 2018 Long Rainy Season in Kenya: Hydrological Changes and Correlated Land Subsidence

Rateb

Hermas

2020

Remote Sensing

View full text Add to dashboard Cite

The wettest 2018 long rainy season (March to May (MAM)) resulted in daily intensive rainfall events in East Africa that have seriously affected the environment and economy in many countries. Land subsidence is one of the environmental disasters that has occurred due to the long rainy season in Kenya for many years. However, it has received limited scientific attention. In this paper, we incorporate hydrological (soil moisture active–passive (SMAP) and loading models) and geodetic data (global positioning system (GPS) and interferometric synthetic aperture radar (InSAR)) to study hydrological changes and their associated subsidence potential in Kenya. Results show that widespread subsidence of more than 20 mm was associated with the MAM season in Kenya during 2018, based on SBAS InSAR measurements. The high values of land subsidence were well correlated with the areas of intense flooding during the MAM season. The widespread subsidence during the wet season has implications for the stability of the earth’s surface during the season rather than creating the possibility of potential stresses along active faults. These stresses may trigger seismicity that is expected to pose risks to urban features. The results of the current study can help governmental authorities to adopt proper urban planning that avoids or minimizes the risks of land subsidence in the areas of sinkholes.

show abstract

“…Land subsidence afflicts many areas in the world involving high population communities and extensive agriculture with great impact on the ecological and economic fields [1]; the effects of this global problem are more evident along transitional environments, such as coastal areas, deltas, wetlands, and lagoons, which are becoming increasingly vulnerable to flooding, storm surges, salinization, and permanent inundation [2][3][4][5]: half a billion people live, in fact, in delta regions threatened by land subsidence, and concerns for their wellbeing are increasing [6]. Land subsidence can be origin by natural and/or anthropogenic causes: natural subsidence is due to the compaction of lithological layers of soil and oxidation of peat; anthropogenic subsidence derives from aquifer-system compaction associated with groundwater or hydrocarbon withdrawals, drainage of organic soils, underground mining, natural compaction, sinkholes, and thawing permafrost [7]; the connections and coexistence of these phenomena have a strong negative impact on the territory, and can lead to environmental degradation, damage to buildings, and interruption of services.…”

Section: Introductionmentioning

confidence: 99%

Monitoring the Coastal Changes of the Po River Delta (Northern Italy) since 1911 Using Archival Cartography, Multi-Temporal Aerial Photogrammetry and LiDAR Data: Implications for Coastline Changes in 2100 A.D.

Fabris

2021

Remote Sensing

View full text Add to dashboard Cite

Interaction between land subsidence and sea level rise (SLR) increases the hazard in coastal areas, mainly for deltas, characterized by flat topography and with great social, ecological, and economic value. Coastal areas need continuous monitoring as a support for human intervention to reduce the hazard. Po River Delta (PRD, northern Italy) in the past was affected by high values of artificial land subsidence: even if at low rates, anthropogenic settlements are currently still in progress and produce an increase of hydraulic risk due to the loss of surface elevation both of ground and levees. Many authors have provided scenarios for the next decades with increased flooding in densely populated areas. In this work, a contribution to the understanding future scenarios based on the morphological changes that occurred in the last century on the PRD coastal area is provided: planimetric variations are reconstructed using two archival cartographies (1911 and 1924), 12 multi-temporal high-resolution aerial photogrammetric surveys (1933, 1944, 1949, 1955, 1962, 1969, 1977, 1983, 1990, 1999, 2008, and 2014), and four LiDAR (light detection and ranging) datasets (acquired in 2006, 2009, 2012, and 2018): obtained results, in terms of emerged surfaces variations, are linked to the available land subsidence rates (provided by leveling, GPS—global positioning system, and SAR—synthetic aperture radar data) and to the expected SLR values, to perform scenarios of the area by 2100: results of this work will be useful to mitigate the hazard by increasing defense systems and preventing the risk of widespread flooding.

show abstract

Mitigating Losses from Land Subsidence in the United States

Cited by 13 publications

References 0 publications

Monitoring of Land Subsidence in the Po River Delta (Northern Italy) Using Geodetic Networks

Monitoring of Land Subsidence in the Po River Delta (Northern Italy) Using Geodetic Networks

The 2018 Long Rainy Season in Kenya: Hydrological Changes and Correlated Land Subsidence

Monitoring the Coastal Changes of the Po River Delta (Northern Italy) since 1911 Using Archival Cartography, Multi-Temporal Aerial Photogrammetry and LiDAR Data: Implications for Coastline Changes in 2100 A.D.

Contact Info

Product

Resources

About