Topographical Effects on Volcano Deformation Signal Intensity: Implications for GPS Network Configuration
Abstract Volcano GPS networks can capture vital information during volcanic unrest to aid with hazard assessment and eruption forecasting, but can be hindered by their discrete point locations and possibly miss key spatial information. We show how numerical models can reveal controls on spatial defo...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-06-01
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| Series: | Geophysical Research Letters |
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| Online Access: | https://doi.org/10.1029/2024GL108812 |
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| author | J. Hickey K. Pascal R. Syers R. Alshembari |
| author_facet | J. Hickey K. Pascal R. Syers R. Alshembari |
| author_sort | J. Hickey |
| collection | DOAJ |
| description | Abstract Volcano GPS networks can capture vital information during volcanic unrest to aid with hazard assessment and eruption forecasting, but can be hindered by their discrete point locations and possibly miss key spatial information. We show how numerical models can reveal controls on spatial deformation signal intensity compared against GPS network design. Using the GPS network at Soufrière Hills Volcano (SHV), Montserrat, and a range of models, we explore expected surface deformation patterns. Peak horizontal deformation is located offshore, highlighting the difficulties with geodetic monitoring on small ocean‐island volcanoes. Onshore areas where the deformation signal is expected to be high are also identified. At SHV, topography plays a greater role in altering the relative distribution of surface displacement patterns than subsurface heterogeneity. Our method, which can be adapted for other volcanoes, highlights spatial areas that can be targeted for effective GPS station placement to help improve deformation monitoring efficiency. |
| format | Article |
| id | doaj-art-18a00331fd32417fa4c261b7b60e8594 |
| institution | OA Journals |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-18a00331fd32417fa4c261b7b60e85942025-08-20T01:52:06ZengWileyGeophysical Research Letters0094-82761944-80072024-06-015112n/an/a10.1029/2024GL108812Topographical Effects on Volcano Deformation Signal Intensity: Implications for GPS Network ConfigurationJ. Hickey0K. Pascal1R. Syers2R. Alshembari3Department of Earth and Environmental Sciences University of Exeter Exeter UKMontserrat Volcano Observatory (MVO) Flemmings MontserratMontserrat Volcano Observatory (MVO) Flemmings MontserratDepartment of Earth and Environmental Sciences University of Exeter Exeter UKAbstract Volcano GPS networks can capture vital information during volcanic unrest to aid with hazard assessment and eruption forecasting, but can be hindered by their discrete point locations and possibly miss key spatial information. We show how numerical models can reveal controls on spatial deformation signal intensity compared against GPS network design. Using the GPS network at Soufrière Hills Volcano (SHV), Montserrat, and a range of models, we explore expected surface deformation patterns. Peak horizontal deformation is located offshore, highlighting the difficulties with geodetic monitoring on small ocean‐island volcanoes. Onshore areas where the deformation signal is expected to be high are also identified. At SHV, topography plays a greater role in altering the relative distribution of surface displacement patterns than subsurface heterogeneity. Our method, which can be adapted for other volcanoes, highlights spatial areas that can be targeted for effective GPS station placement to help improve deformation monitoring efficiency.https://doi.org/10.1029/2024GL108812volcano deformationnumerical modelingGPS |
| spellingShingle | J. Hickey K. Pascal R. Syers R. Alshembari Topographical Effects on Volcano Deformation Signal Intensity: Implications for GPS Network Configuration Geophysical Research Letters volcano deformation numerical modeling GPS |
| title | Topographical Effects on Volcano Deformation Signal Intensity: Implications for GPS Network Configuration |
| title_full | Topographical Effects on Volcano Deformation Signal Intensity: Implications for GPS Network Configuration |
| title_fullStr | Topographical Effects on Volcano Deformation Signal Intensity: Implications for GPS Network Configuration |
| title_full_unstemmed | Topographical Effects on Volcano Deformation Signal Intensity: Implications for GPS Network Configuration |
| title_short | Topographical Effects on Volcano Deformation Signal Intensity: Implications for GPS Network Configuration |
| title_sort | topographical effects on volcano deformation signal intensity implications for gps network configuration |
| topic | volcano deformation numerical modeling GPS |
| url | https://doi.org/10.1029/2024GL108812 |
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