Direct monitoring of active geohazards: emerging geophysical tools for deep-water assessments.
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Clare, Michael A.
Vardy, Mark E.
Cartigny, Matthieu J.B.
Talling, Peter J.
Himsworth, Matthew D.
Dix, Justin K.
Harris, John M.
Whitehouse, Richard J.S.
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Seafloor networks of cables, pipelines, and other infrastructure underpin our daily lives, providing communication links, information, and energy supplies. Despite their global importance, these networks are vulnerable to damage by a number of natural seafloor hazards, including landslides, turbidity currents, fluid flow, and scour. Conventional geophysical techniques, such as high-resolution reflection seismic and side-scan sonar, are commonly employed in geohazard assessments. These conventional tools provide essential information for route planning and design; however, such surveys provide only indirect evidence of past processes and do not observe or measure the geohazard itself. As such, many numerical-based impact models lack field-scale calibration, and much uncertainty exists about the triggers, nature, and frequency of deep-water geohazards. Recent advances in technology now enable a step change in their understanding through direct monitoring. We outline some emergi.....
JournalNear Surface Geophysics
Sustainable Development Goals (SDG)14.A
Best Practice TypeManual (incl. handbook, guide, cookbook etc)
CitationClare, M.A. ; Vardy, M.E.; Cartigny, M.J.B.; Talling, P.J.; Himsworth, M.D.; Dix, J.K.; Harris, J.M.; Whitehouse, R.J.S. and Belal, M. (2017) Direct monitoring of active geohazards: emerging geophysical tools for deep-water assessments. Near Surface Geophysics, 15, pp.427-444. DOI: https://doi.org/10.3997/1873-0604.2017033
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