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Quantifying groundwater exploitation induced subsidence in the Rafsanjan plain, southeastern Iran, using InSAR time-series and in situ measurements
https://orcid.org/0000-0001-7434-3696
AbstractDecades of groundwater overexploitation for agriculture and industrial development have resulted in substantial land subsidence in the Rafsanjan plain of southeastern Iran. This work presents the results of an InSAR time series analysis obtained by the exploitation of Envisat, ALOS and Sentinel-1 (S1) SAR data archives between June 2004, and May 2016, to investigate land subsidence in the plain. The InSAR analysis revealed an area of approximately 1000km2 within the study area showing subsidence of >5cm/year and locally exceeding 30cm/yr in the last decade. This area of significant subsidence is limited in its spatial extent to the agricultural land and is partly influenced by Quaternary faults. The temporal and areal relationships of subsidence and groundwater level data suggest that a significant part of the observed subsidence in the Rafsanjan region is caused by intense groundwater extraction that has led to widespread compaction within the upper parts of the up to 300m thick unconsolidated sediments, causing irreversible and inelastic deformation of the aquifer. The average volume storage loss of the aquifer system due to overexploitation is estimated to have been approximately 300millioncubicmetre (mcm)/yr over the last decade.
HighlightsExploring multi-sensor SAR data to address subsidence hazardDecomposition of LOS velocities to assess vertical and horizontal motionAnalysing geological and field data to understand anomalies observed in InSAR.Quantifying deformability of the aquifer using InSAR and in situ observations
Quantifying groundwater exploitation induced subsidence in the Rafsanjan plain, southeastern Iran, using InSAR time-series and in situ measurements
https://orcid.org/0000-0001-7434-3696
AbstractDecades of groundwater overexploitation for agriculture and industrial development have resulted in substantial land subsidence in the Rafsanjan plain of southeastern Iran. This work presents the results of an InSAR time series analysis obtained by the exploitation of Envisat, ALOS and Sentinel-1 (S1) SAR data archives between June 2004, and May 2016, to investigate land subsidence in the plain. The InSAR analysis revealed an area of approximately 1000km2 within the study area showing subsidence of >5cm/year and locally exceeding 30cm/yr in the last decade. This area of significant subsidence is limited in its spatial extent to the agricultural land and is partly influenced by Quaternary faults. The temporal and areal relationships of subsidence and groundwater level data suggest that a significant part of the observed subsidence in the Rafsanjan region is caused by intense groundwater extraction that has led to widespread compaction within the upper parts of the up to 300m thick unconsolidated sediments, causing irreversible and inelastic deformation of the aquifer. The average volume storage loss of the aquifer system due to overexploitation is estimated to have been approximately 300millioncubicmetre (mcm)/yr over the last decade.
HighlightsExploring multi-sensor SAR data to address subsidence hazardDecomposition of LOS velocities to assess vertical and horizontal motionAnalysing geological and field data to understand anomalies observed in InSAR.Quantifying deformability of the aquifer using InSAR and in situ observations
Quantifying groundwater exploitation induced subsidence in the Rafsanjan plain, southeastern Iran, using InSAR time-series and in situ measurements
https://orcid.org/0000-0001-7434-3696
AbstractDecades of groundwater overexploitation for agriculture and industrial development have resulted in substantial land subsidence in the Rafsanjan plain of southeastern Iran. This work presents the results of an InSAR time series analysis obtained by the exploitation of Envisat, ALOS and Sentinel-1 (S1) SAR data archives between June 2004, and May 2016, to investigate land subsidence in the plain. The InSAR analysis revealed an area of approximately 1000km2 within the study area showing subsidence of >5cm/year and locally exceeding 30cm/yr in the last decade. This area of significant subsidence is limited in its spatial extent to the agricultural land and is partly influenced by Quaternary faults. The temporal and areal relationships of subsidence and groundwater level data suggest that a significant part of the observed subsidence in the Rafsanjan region is caused by intense groundwater extraction that has led to widespread compaction within the upper parts of the up to 300m thick unconsolidated sediments, causing irreversible and inelastic deformation of the aquifer. The average volume storage loss of the aquifer system due to overexploitation is estimated to have been approximately 300millioncubicmetre (mcm)/yr over the last decade.
HighlightsExploring multi-sensor SAR data to address subsidence hazardDecomposition of LOS velocities to assess vertical and horizontal motionAnalysing geological and field data to understand anomalies observed in InSAR.Quantifying deformability of the aquifer using InSAR and in situ observations
Quantifying groundwater exploitation induced subsidence in the Rafsanjan plain, southeastern Iran, using InSAR time-series and in situ measurements
Motagh, Mahdi (author) / Shamshiri, Roghayeh (author) / Haghshenas Haghighi, Mahmud (author) / Wetzel, Hans-Ulrich (author) / Akbari, Bahman (author) / Nahavandchi, Hossein (author) / Roessner, Sigrid (author) / Arabi, Siavash (author)
Engineering Geology ; 218 ; 134-151
2017-01-14
18 pages
Article (Journal)
Electronic Resource
English
| British Library Online Contents | 2017
Land subsidence in Rafsanjan plain, Iran
| British Library Conference Proceedings | 1998
| British Library Online Contents | 2018