Land subsidence and rebound in the Taiyuan basin, northern China, in the context of inter-basin water transfer and groundwater management

Tang, Wei; Zhao, Xiangjun; Motagh, Mahdi; Bi, Gang; Li, Jing; Chen, Mingjie; Chen, Hua; Liao, Mingsheng

doi:10.1016/j.rse.2021.112792

Cited by 43 publications

(23 citation statements)

References 54 publications

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“…Thus, a minor rebound could be observed at the land surface. Land rebound is a typical post-pumping behavior of aquifer systems, which was observed in many other previously subsiding areas (e.g., Chen et al 2007;Tang et al 2022).…”

Section: The Concept Of New Preconsolidation Headmentioning

confidence: 87%

New Preconsolidation Heads Following the Long‐Term Hydraulic‐Head Decline and Recovery in Houston, Texas

Wang¹

2022

Groundwater

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The Houston area in Texas, United States, has been experiencing land subsidence for a century from the 1920s to 2010s. A substantial portion of the Houston area had finished a consolidation cycle following the long‐term hydraulic head decline and recovery. A new “maximum effective stress” (preconsolidation stress) was preserved in the memory of the aquitards. For an aquifer system comprising aquifers and aquitards, the preconsolidation stress is corresponding to the lowest hydraulic head in the aquitards, not in the aquifers. Preconsolidation head is generally regarded as a groundwater‐level threshold below which inelastic compaction begins. The preconsolidation head finalized after the long‐term hydraulic head decline and recovery is called new preconsolidation head. This study has developed an empirical equation for projecting the new preconsolidation head. According to this study, the new preconsolidation heads in the primary aquifers (lower Chicot and Evangeline) are local specific: varying from about 30 m below land surface (−30 m) in the south to −50 m in the north of the Harris‐Galveston Subsidence District (HGSD) Regulatory Area 1, from −60 m in the east to −80 m in the west of Area 2, and from −70 m in the south to −100 m in the center of Area 3. In Areas 1 and 2, the current hydraulic heads are about 10 m to 20 m higher than the local new preconsolidation heads; thus, remarkable land subsidence (>1 cm/year) would not be reinitiated unless the hydraulic heads are to fall below the local new preconsolidation head.

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Section: The Concept Of New Preconsolidation Headmentioning

confidence: 87%

New Preconsolidation Heads Following the Long‐Term Hydraulic‐Head Decline and Recovery in Houston, Texas

Wang¹

2022

Groundwater

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“…Accordingly, we estimated this effect by fitting a first order polynomial to the interferograms during the SBAS analysis. The set of small baseline interferograms were finally translated into a range-change time series that describes the time-dependent surface deformation by a least-squares inversion [63]. The stratified atmospheric delay is a major error source in the SBAS time series analysis which is computed in GMTSAR by a method that uses a common point stacking technique to estimate the delays in the radar phase induced by propagation through the atmosphere [61].…”

Section: Interferometric Analysis Of Crustal Upliftmentioning

confidence: 99%

Section: Interferometric Analysis Of Crustal Upliftmentioning

confidence: 99%

Inferring Mass Loss by Measuring Contemporaneous Deformation around the Helheim Glacier, Southeastern Greenland, Using Sentinel-1 InSAR

2022

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The elastic response of solid earth to glacier and ice sheet melting, the most important consequences of climate change, is a contemporaneous uplift. Here, we use interferometric synthetic aperture radar (InSAR) measurements to detect crustal deformation and mass loss near the Helheim glacier, one of the largest glaciers in southeastern Greenland. The InSAR time series of Sentinel-1 data between April 2016 and July 2020 suggest that there is a maximum cumulative displacement of ~6 cm in the line of sight (LOS) direction from the satellite to the ground near Helheim. We use an exponentially decreasing model of the thinning rate, which assumes that the mass loss starts at the lower-elevation terminal region of the glacier and continues to the higher-elevation interior. A linear inversion of the derived crustal uplift in the vicinity of bedrock using this model for surface loading in an elastic half-space suggests a mass loss of 8.33 Gt/year, which agrees with the results from other studies.

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“…So this region is vulnerable to floods. Due to long-term excessive groundwater exploitation, many regions in this basin subside, though the velocity has reduced by up to ~70% from 2017 to 2020 to the period of 2007 and 2010 [19]. From October 2 to 6, 2021, this area was stricken by continuous rainstorms, resulting in the water level rise of tributaries of Fen River, which are the Wuma River and Ciyao River, and flood outburst.…”

Section: Study Area and Datasetsmentioning

confidence: 99%

Mapping the 2021 October Flood Event in the Subsiding Taiyuan Basin by Multitemporal SAR Data

Feng

Zhang

Dong

et al. 2022

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

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A flood event induced by heavy rainfall hit the Taiyuan basin in north China in early October of 2021. In this study, we map the flood event process using the multi-temporal synthetic aperture radar (SAR) images acquired by Sentinel-1. First, we develop a spatiotemporal filter based on low-rank tensor approximation (STF-LRTA) for removing the speckle noise in SAR images. Next, we employ the classic log-ratio change indicator and the minimum error threshold algorithm to characterize the flood using the filtered images. Finally, we relate the flood inundation to the land subsidence in the Taiyuan basin by jointly analyzing the multi-temporal SAR change detection results and interferometric SAR (InSAR) time-series measurements (pre-flood). The validation experiments compare the proposed filter with the Refined-Lee filter, Gamma filter, and an SHPS-based multi-temporal SAR filter. The results demonstrate the effectiveness and advantage of the proposed STF-LRTA method in SAR despeckling and detail preservation, and the applicability to change scenes. The joint analyses reveal that land subsidence might be an important contributor to the flood event, and the flood recession process linearly correlates with time and subsidence magnitude.

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Land subsidence and rebound in the Taiyuan basin, northern China, in the context of inter-basin water transfer and groundwater management

Cited by 43 publications

References 54 publications

New Preconsolidation Heads Following the Long‐Term Hydraulic‐Head Decline and Recovery in Houston, Texas

New Preconsolidation Heads Following the Long‐Term Hydraulic‐Head Decline and Recovery in Houston, Texas

Inferring Mass Loss by Measuring Contemporaneous Deformation around the Helheim Glacier, Southeastern Greenland, Using Sentinel-1 InSAR

Mapping the 2021 October Flood Event in the Subsiding Taiyuan Basin by Multitemporal SAR Data

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