Vertical Land Motion of the High Plains Aquifer Region of the United States: Effect of Aquifer Confinement Style, Climate Variability, and Anthropogenic Activity

Overacker, Justine; Hammond, W. C.; Blewitt, G.; Kreemer, C.

doi:10.1029/2021wr031635

Cited by 8 publications

(10 citation statements)

References 74 publications

(132 reference statements)

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“…We also employed spherical models using layered Earth structures (Figure S2 in Supporting Information ), yielding TWS rates an order of magnitude larger than GRACE estimates. Such discrepancies between GRACE observations and spherical elastic load model estimates of TWS are observed in previous studies (Overacker et al., 2022), likely due to heterogeneous local geology deviating from the spherically layered PREM.…”

Section: Resultsmentioning

confidence: 49%

Groundwater Volume Loss in Mexico City Constrained by InSAR and GRACE Observations and Mechanical Models

Khorrami

Shirzaei

Ghobadi‐Far

et al. 2023

Geophysical Research Letters

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Groundwater withdrawal can cause localized and rapid poroelastic subsidence, spatially broad elastic uplift of low amplitude, and changes in the gravity field. Constraining groundwater loss in Mexico City, we analyze data from the Gravity Recovery and Climate Experiment and its follow‐on mission (GRACE/FO) and Synthetic Aperture Radar (SAR) Sentinel‐1A/B images between 2014 and 2021. GRACE/FO observations yield a groundwater loss of 0.85–3.87 km3/yr for a region of ∼300 × 600 km surrounding Mexico City. Using the high‐resolution interferometric SAR data set, we measure >35 cm/yr subsidence within the city and up to 2 cm/yr of uplift in nearby areas. Attributing the long‐term subsidence to poroelastic aquifer compaction and the long‐term uplift to elastic unloading, we apply respective models informed by local geology, yielding groundwater loss of 0.86–12.57 km3/yr. Our results suggest Mexico City aquifers have been depleting at faster rates since 2015, exacerbating the socioeconomic and health impacts of long‐term groundwater overdrafts.

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Section: Resultsmentioning

confidence: 49%

Groundwater Volume Loss in Mexico City Constrained by InSAR and GRACE Observations and Mechanical Models

Khorrami

Shirzaei

Ghobadi‐Far

et al. 2023

Geophysical Research Letters

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“…We collected five GPS stations (HKTK, HKSL, HKLT, HKKT, and HKFN) derived from the Nevada Geodetic Laboratory (NGL) to verify the results of IPTA-SBAS [53]. GNSS datasets derived from the NGL are usually used as the true value of surface deformation [54,55]. The GPS results have been translated to the line of sight (LOS) direction of SAR images according to the equations described in [6].…”

Section: B Accuracy Verificationmentioning

confidence: 99%

Understanding the Spatial-Temporal Characteristics of Land Subsidence in Shenzhen under Rapid Urbanization Based on MT-InSAR

Sun

Liu

et al. 2023

IEEE J. Sel. Top. Appl. Earth Observations Remote Sensing

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Land subsidence is a common geological hazard in urban areas. It can be caused by human activities such as land reclamation and subway construction. However, rapid urbanization can accelerate the progress of these activities. Therefore, spatial-temporal analysis of land subsidence can provide a guarantee for rapid urbanization progress. In this study, Shenzhen, one of the fastest urbanizing cities in China, is selected for continued land subsidence monitoring. We collected 153 Sentinel-1A images from December 2015 to July 2021 and utilized an interferometric point target analysis (IPTA) method to generate the land subsidence in Shenzhen. Additionally, we analyzed the relationship between land subsidence and typical urbanization progress: land reclamation, transportation network, and urban construction. The results show that land subsidence mostly occurs in the western reclamation area, with a maximum rate of -74.9 mm/a in Qianhai Bay. Areas with larger quaternary marine sediment thickness in the range of 10~20 m are more likely to experience subsidence. Obvious subsidence (<-20 mm/a) along the subway mainly occurred on Lines 11 and Line 5, which is inversely proportional to the distance from the metro. The correlation coefficient is -0.197. Areas with low road densities have a high probability of experiencing great subsidence. A relationship between land subsidence and building construction in the Guangming district is found. Obvious subsidence (<-20 mm/a) mainly occurred in the building areas, with a percentage of 43.48%.

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“…This results in faster seismic velocities and a surface subsidence (Bettinelli et al, 2008;Faunt et al, 2016;Galloway et al, 1999;Overacker et al, 2022). By contrast, in unconfined aquifers, a decrease in the amount of groundwater, for instance, induced by anthropological pumping or evapotranspiration, induces a mass discharge that causes an uplift of the surface (Overacker et al, 2022). Seasonality coefficient map for precipitations measured at 494 weather stations (square) between 2010 and 2021.…”

Section: Monitoring Aquifers Using δV/v and Gps Measurementsmentioning

confidence: 99%

“…Groundwater pumping in confined aquifers made of unconsolidated sediments causes a decrease of water pressure in the reservoir that results in sediment compaction (Alley et al., 1999; Parcharidis et al., 2011; Salvi et al., 2004). This results in faster seismic velocities and a surface subsidence (Bettinelli et al., 2008; Faunt et al., 2016; Galloway et al., 1999; Overacker et al., 2022). By contrast, in unconfined aquifers, a decrease in the amount of groundwater, for instance, induced by anthropological pumping or evapotranspiration, induces a mass discharge that causes an uplift of the surface (Overacker et al., 2022).…”

Section: Origin Of the Seasonal Variations On The δV/v In Greecementioning

confidence: 99%

“…Therefore, δv/v measurements are complementary to other geophysical tools such as GPS/INSAR which measure surface deformation, and hydraulic head measurements which provide spatially sparse measurements of water level. A change in hydraulic loading affects seismic velocities primarily through (a) the elastic response of the crust due to the change in water-loading pressure which can also subside the surface (Faunt et al, 2016;Galloway et al, 1999) and (b) the poroelastic response induced by recharge of the internal porous soil structure of the aquifer (Barajas et al, 2021;Bettinelli et al, 2008;Galloway & Burbey, 2011;King et al, 2007;Overacker et al, 2022). Silverii et al (2016) have used the GPS data in the Apennines to show that the multiyear hydrologic cycle associated with the recharge and discharge phase of the karst aquifer modulates extensional deformation by 3 mm/year.…”

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confidence: 99%

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Seasonal Seismic Velocity Variations Measured Using Seismic Noise Autocorrelations to Monitor the Dynamic of Aquifers in Greece

Delouche,

Stehly

2023

JGR Solid Earth

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Monitoring groundwater levels in aquifers is crucial for water resources management on a global scale. In Greece, water stress is particularly high due to the expansion of agricultural land, urbanization and tourism, leading to aquifer over‐exploitation. In this study, we investigate the possibility of monitoring groundwater reservoirs from seismic velocity changes (δv/v) measured using noise autocorrelations. The results obtained at short periods (0.5–3 s) indicate that in several regions, seismic wave velocity varies according to an annual cycle mainly controlled by aquifer loading and discharge. We also predict seismic velocity variations from a simple model using precipitation records. In addition, this model provides a proxy for the characteristic time of aquifer discharge rate and allows us to distinguish shallow alluvial aquifers (∼100 m) from deep karst systems (∼1 km). Finally, we study the effect of water pumping from groundwater reservoirs. To that end, we combine Global Positioning System (GPS), hydraulic heads and velocity variations measurement. The results indicate that confined and unconfined aquifers respond differently. While for unconfined aquifers, pumping water implies an uplift of the surface, we show that for confined aquifers a subsidence occurs, due to the consolidation of the sediments at depth. Being an in‐situ and volumetric measurement, the δv/v is primarily sensitive to the amount of water stored in the entire aquifer system, whereas GPS measurements provide the deformation at the surface induced by both deep sediment compaction and water level variations. These observations show that GPS, hydraulic head, and δv/v are complementary tools to monitor aquifers.

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Vertical Land Motion of the High Plains Aquifer Region of the United States: Effect of Aquifer Confinement Style, Climate Variability, and Anthropogenic Activity

Cited by 8 publications

References 74 publications

Groundwater Volume Loss in Mexico City Constrained by InSAR and GRACE Observations and Mechanical Models

Groundwater Volume Loss in Mexico City Constrained by InSAR and GRACE Observations and Mechanical Models

Understanding the Spatial-Temporal Characteristics of Land Subsidence in Shenzhen under Rapid Urbanization Based on MT-InSAR

Seasonal Seismic Velocity Variations Measured Using Seismic Noise Autocorrelations to Monitor the Dynamic of Aquifers in Greece

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