Room: Exhibit Hall
Date: 5/3/2024
Session Time: 8:00 AM to 5:45 PM (local time)
As global sea levels rise, coastal communities worldwide will be forced to adapt or retreat. Projections of relative sea-level change across decades or centuries will become essential planning tools to mitigate the vulnerability of these communities.
In seismically active regions, changes in land elevation associated with the earthquake cycle —including interseismic, coseismic and postseismic deformation, as well as slow-slip events — can either mitigate or exacerbate climate-driven sea-level rise over similar timescales. To ensure accurate projections of relative sea-level change, it is therefore necessary to evaluate the influence of tectonic vertical land movements (VLM) in the relevant analyses.
Estimating and incorporating tectonic VLM into projections of relative sea-level rise requires two key components:
- Collecting and analyzing geologic and geodetic observations to constrain present and past contributions of VLM to relative sea-level change throughout all phases of the seismic cycle.
- Modelling to project observed tectonic VLM decades and centuries into the future.
We welcome contributions that link VLM resulting from the seismic cycle to relative sea-level changes, through data analysis, modelling, or a combination of both.
Furthermore, vertical deformation is not always primarily associated with tectonic signals, as nontectonic processes, such as sediment loading and glacial isostasy adjustment, can also have significant influences on VLM of the lithosphere. Studies that help identify and account for such nontectonic processes to improve VLM projections, and thus relative sea- level projections, are also welcomed.
Conveners:
Kate J. Clark, GNS Science (k.clark@gns.cri.nz)
Andrew Howell, University of Canterbury (andrew.howell@canterbury.ac.nz)
Jeonghyeop Kim, University of Washington (jey.kim@uw.edu)
Poster Presentations
| Participant Role | Details | Action |
|---|---|---|
| Submission | Toward Resilient Coastal Communities: A Probabilistic Assessment of Co- and Inter-Seismic Vertical Land Motion | View |
| Submission | How Will Earthquakes Change Sea Level? a Probabilistic Coast-Seismic Hazard Model | View |
| Submission | Validation of Probabilistic Coseismic Coastal Deformation Models using Geologic and Geomorphic Evidence | View |
| Submission | Complex Earthquake Deformation Drives Relative Sea-Level Change Where Oblique Contraction Focuses Rock Uplift West of the Fairweather Fault, Southeast Alaska | View |
| Submission | WITHDRAWN Decade-to-Century Scale Vertical Earthquake-Cycle Deformation at Subduction Zones: Implications for Cascadia and Nankai | View |
| Submission | WITHDRAWN Assimilation of Vertical Land Movement Observations and Models to Support Sea Level Rise Planning Along the Shorelines of the Cascadia Subduction Zone | View |
Seismic Cycle-Driven Sea-Level Change Over Decades to Centuries: Observations and Projections [Poster Session]
Description