Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR
Charactering subsurface aquifer systems is important not only to managing their long‐term viability as a stable water source but also to protecting the residences and infrastructures. In particular, understanding how aquifer skeletons deform in response to hydraulic head changes requires hydrogeolog...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/89890 http://hdl.handle.net/10220/49338 |
| _version_ | 1811693862028050432 |
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| author | Hu, Xie Lu, Zhong Wang, Teng |
| author2 | Earth Observatory of Singapore |
| author_facet | Earth Observatory of Singapore Hu, Xie Lu, Zhong Wang, Teng |
| author_sort | Hu, Xie |
| collection | NTU |
| description | Charactering subsurface aquifer systems is important not only to managing their long‐term viability as a stable water source but also to protecting the residences and infrastructures. In particular, understanding how aquifer skeletons deform in response to hydraulic head changes requires hydrogeological parameters such as decay coefficient, storage coefficient, and bulk compressibility. Quantifying these key aquifer properties often requires the analysis of limited water gauge and drilling data. Here we investigate the spatiotemporal correlation between the vertical ground deformation derived by ENVISAT Advanced Synthetic Aperture Radar (ASAR) and Sentinel‐1A data sets and available hydrological records in order to improve the aquifer characterization under Salt Lake Valley, Utah. Interferometric synthetic aperture radar results show a clear long‐term and seasonal correlation between surface uplift/subsidence and groundwater recharge/discharge, with evidence for the net uplift of 15 mm/year of an area southwest of Salt Lake City for six years. The long‐term uplift, bounded by faults and contained within the water discharge area, reflects a net increase in pore pressure associated with prolonged water recharge probably decades ago. The distribution of both previously mapped faults and newly mapped faults within the fields of deformation and the decay coefficient suggests that the faults disrupt the groundwater flow and partition the hydrological units. We also characterize human‐ and hydrological‐triggered deformation by the features of seasonality and the deviation from the exponentially decaying model. By improving our ability to characterize aquifer structures, interferometric synthetic aperture radar analysis of surface deformation in combination with traditional hydrological monitoring data presents an opportunity to recognize and mitigate potential hazards. |
| first_indexed | 2024-10-01T06:58:25Z |
| format | Journal Article |
| id | ntu-10356/89890 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:58:25Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/898902020-09-26T21:34:45Z Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR Hu, Xie Lu, Zhong Wang, Teng Earth Observatory of Singapore Aquifer Science::Geology InSAR Charactering subsurface aquifer systems is important not only to managing their long‐term viability as a stable water source but also to protecting the residences and infrastructures. In particular, understanding how aquifer skeletons deform in response to hydraulic head changes requires hydrogeological parameters such as decay coefficient, storage coefficient, and bulk compressibility. Quantifying these key aquifer properties often requires the analysis of limited water gauge and drilling data. Here we investigate the spatiotemporal correlation between the vertical ground deformation derived by ENVISAT Advanced Synthetic Aperture Radar (ASAR) and Sentinel‐1A data sets and available hydrological records in order to improve the aquifer characterization under Salt Lake Valley, Utah. Interferometric synthetic aperture radar results show a clear long‐term and seasonal correlation between surface uplift/subsidence and groundwater recharge/discharge, with evidence for the net uplift of 15 mm/year of an area southwest of Salt Lake City for six years. The long‐term uplift, bounded by faults and contained within the water discharge area, reflects a net increase in pore pressure associated with prolonged water recharge probably decades ago. The distribution of both previously mapped faults and newly mapped faults within the fields of deformation and the decay coefficient suggests that the faults disrupt the groundwater flow and partition the hydrological units. We also characterize human‐ and hydrological‐triggered deformation by the features of seasonality and the deviation from the exponentially decaying model. By improving our ability to characterize aquifer structures, interferometric synthetic aperture radar analysis of surface deformation in combination with traditional hydrological monitoring data presents an opportunity to recognize and mitigate potential hazards. Published version 2019-07-15T02:38:15Z 2019-12-06T17:35:59Z 2019-07-15T02:38:15Z 2019-12-06T17:35:59Z 2018 Journal Article Hu, X., Lu, Z., & Wang, T. (2018). Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR. Journal of Geophysical Research: Earth Surface, 123(6), 1257-1271. doi:10.1029/2017JF004497 2169-9011 https://hdl.handle.net/10356/89890 http://hdl.handle.net/10220/49338 10.1029/2017JF004497 en Journal of Geophysical Research: Earth Surface © 2018 American Geophysical Union. All rights reserved. This paper was published in Journal of Geophysical Research: Earth Surface and is made available with permission of American Geophysical Union. 15 p. application/pdf |
| spellingShingle | Aquifer Science::Geology InSAR Hu, Xie Lu, Zhong Wang, Teng Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR |
| title | Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR |
| title_full | Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR |
| title_fullStr | Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR |
| title_full_unstemmed | Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR |
| title_short | Characterization Of hydrogeological properties in Salt Lake Valley, Utah, using InSAR |
| title_sort | characterization of hydrogeological properties in salt lake valley utah using insar |
| topic | Aquifer Science::Geology InSAR |
| url | https://hdl.handle.net/10356/89890 http://hdl.handle.net/10220/49338 |
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