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Your search keyword '"Galloway, Devin"' showing total 49 results
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49 results on '"Galloway, Devin"'

9. Documenting the multiple facets of a subsiding landscape from coastal cities and wetlands to the continental shelf

Author

Flocks, James G., primary, McGraw, Eileen, additional, Barras, John, additional, Bernier, Julie, additional, Bradley, Mike, additional, Galloway, Devin L., additional, Landmeyer, James, additional, McBride, W. Scott, additional, Smith, Christopher, additional, Smith, Kathryn, additional, Swarzenski, Christopher, additional, and Toth, Lauren, additional

Published
2022
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10. Improving global land subsidence analysis

Author

Ezquerro, Pablo, primary, Herrera-García, Gerardo, additional, Tomás, Roberto, additional, Béjar-Pizarro, Marta, additional, López-Vinielles, Juan, additional, Rossi, Mauro, additional, Mateos, Rosa M., additional, Carreón-Freyre, Dora, additional, Lambert, John, additional, Teatini, Pietro, additional, Cabral-Cano, Enrique, additional, Erkens, Gilles, additional, Galloway, Devin, additional, Hung, Wei-Chia, additional, Kakar, Najeebullah, additional, Sneed, Michelle, additional, Tosi, Luigi, additional, Wang, Hanmei, additional, and Ye, Shujun, additional

Published
2021
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13. Mapping the global threat of land subsidence

Author

Herrera-García, Gerardo, primary, Ezquerro, Pablo, additional, Tomás, Roberto, additional, Béjar-Pizarro, Marta, additional, López-Vinielles, Juan, additional, Rossi, Mauro, additional, Mateos, Rosa M., additional, Carreón-Freyre, Dora, additional, Lambert, John, additional, Teatini, Pietro, additional, Cabral-Cano, Enrique, additional, Erkens, Gilles, additional, Galloway, Devin, additional, Hung, Wei-Chia, additional, Kakar, Najeebullah, additional, Sneed, Michelle, additional, Tosi, Luigi, additional, Wang, Hanmei, additional, and Ye, Shujun, additional

Published
2021
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21. Sensing the ups and downs of Las Vegas: InSAR reveals structural control of land subsidence and aquifer-system deformation

Author

Amelung, Falk, Galloway, Devin L., Bell, John W., Zebker, Howard A., and Laczniak, Randell J.

Subjects
Las Vegas, Nevada -- Natural history, Subsidences (Earth movements) -- Nevada, Synthetic aperture radar -- Usage, Aquifers -- Nevada, Formations (Geology) -- Nevada, Earth sciences
Abstract

Land subsidence in Las Vegas, Nevada, United States, between April 1992 and December 1997 was measured using spaceborne interferometric synthetic aperture radar. The detailed deformation maps clearly show that the spatial extent of subsidence is controlled by geologic structures (faults) and sediment composition (clay thickness). The maximum detected subsidence during the 5.75 yr period is 19 cm. Comparison with leveling data indicates that the subsidence rates declined during the past decade as a result of rising ground-water levels brought about by a net reduction in ground-water extraction. Temporal analysis also detects seasonal subsidence and uplift patterns, which provide information about the elastic and inelastic properties of the aquifer system and their spatial variability.

Published
1999

29. Assessing Groundwater Depletion and Dynamics Using GRACE and InSAR: Potential and Limitations

Author

Castellazzi, Pascal, Martel, Richard, Galloway, Devin, Longuevergne, Laurent, Centre Eau Terre Environnement [Québec] (INRS - ETE), Institut National de la Recherche Scientifique [Québec] (INRS), Département de Chimie [Montréal], Université du Québec à Montréal = University of Québec in Montréal (UQAM), United States Geological Survey [Reston] (USGS), Géosciences Rennes (GR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR), and Université de Rennes (UR)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Rennes 2 (UR2)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU.HY]Sciences of the Universe [physics]/Earth Sciences/Hydrology
Abstract

International audience; In the last decade, remote sensing of the temporal variation of ground level and gravity has improved our understanding of groundwater dynamics and storage. Mass changes are measured by GRACE (Gravity Recovery and Climate Experiment) satellites, whereas ground deformation is measured by processing synthetic aperture radar satellites data using the InSAR (Interferometry of Synthetic Aperture Radar) techniques. Both methods are complementary and offer different sensitivities to aquifer system processes. GRACE is sensitive to mass changes over large spatial scales (more than 100,000 km2). As such, it fails in providing groundwater storage change estimates at local or regional scales relevant to most aquifer systems, and at which most groundwater management schemes are applied. However, InSAR measures ground displacement due to aquifer response to fluid-pressure changes. InSAR applications to groundwater depletion assessments are limited to aquifer systems susceptible to measurable deformation. Furthermore, the inversion of InSAR-derived displacement maps into volume of depleted groundwater storage (both reversible and largely irreversible) is confounded by vertical and horizontal variability of sediment compressibility. During the last decade, both techniques have shown increasing interest in the scientific community to complement available in situ observations where they are insufficient. In this review, we present the theoretical and conceptual bases of each method, and present idealized scenarios to highlight the potential benefits and challenges of combining these techniques to remotely assess groundwater storage changes and other aspects of the dynamics of aquifer systems.

Published
2016

30. IGCP 641 Project: Mechanisms, Monitoring and Modeling Earth Fissure Generation and Fault Activation due to Subsurface Fluid Exploitation.

Author

YE, Shujun, CARREÓN‐FREYRE, Dora, TEATINI, Pietro, and GALLOWAY, Devin

Subjects
GEOLOGIC faults, SURFACE of the earth, SURFACE cracks, LAND subsidence, SURFACE fault ruptures
Abstract

The article presents a research report conducted on the earth fault activation and fissure generation because of subsurface fluid exploitation through its mechanism, modelling and monitoring. It states on the understanding of the land subsidence, geomechanical mechanisms and ground ruptures that impacts the development of urban settlements. The fissure and faults are the results of agricultural and economic activities.

Published
2019
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49. Assessing Groundwater Depletion and Dynamics Using GRACE and InSAR: Potential and Limitations.

Author

Castellazzi P, Martel R, Galloway DL, Longuevergne L, and Rivera A

Subjects
Gravitation, Climate, Groundwater
Abstract

In the last decade, remote sensing of the temporal variation of ground level and gravity has improved our understanding of groundwater dynamics and storage. Mass changes are measured by GRACE (Gravity Recovery and Climate Experiment) satellites, whereas ground deformation is measured by processing synthetic aperture radar satellites data using the InSAR (Interferometry of Synthetic Aperture Radar) techniques. Both methods are complementary and offer different sensitivities to aquifer system processes. GRACE is sensitive to mass changes over large spatial scales (more than 100,000 km 2 ). As such, it fails in providing groundwater storage change estimates at local or regional scales relevant to most aquifer systems, and at which most groundwater management schemes are applied. However, InSAR measures ground displacement due to aquifer response to fluid-pressure changes. InSAR applications to groundwater depletion assessments are limited to aquifer systems susceptible to measurable deformation. Furthermore, the inversion of InSAR-derived displacement maps into volume of depleted groundwater storage (both reversible and largely irreversible) is confounded by vertical and horizontal variability of sediment compressibility. During the last decade, both techniques have shown increasing interest in the scientific community to complement available in situ observations where they are insufficient. In this review, we present the theoretical and conceptual bases of each method, and present idealized scenarios to highlight the potential benefits and challenges of combining these techniques to remotely assess groundwater storage changes and other aspects of the dynamics of aquifer systems., (© 2016, National Ground Water Association.)

Published
2016
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