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Session Proposal: Coastal Subsidence and Relative Sea-Level Rise: Assessments, Processes, Projections, and Mitigation in Natural and Urban Environments (AGU25)

EP008
Coastal Subsidence and Relative Sea-Level Rise: Assessments, Processes, Projections, and Mitigation in Natural and Urban Environments

Session ID#: 248046

Session Description:
Land subsidence is a critical concern in coastal areas worldwide, and increasingly a main driver of coastal relative sea-level rise (SLR). In addition to natural processes (tectonics, compaction, glacial and sediment isostatic adjustment, growth faults), human-induced (aquifer over-exploitation, hydrocarbon production, peat oxidation, and urbanization-related loading) processes often cause subsidence to exceed the rate of climate-driven sea-level rise. To understand these effects, it is necessary to assess subsurface processes at the appropriate spatial and temporal scales.This session invites contributions across various disciplines to deepen our understanding of land subsidence and its impact on coastal relative SLR. We welcome studies on monitoring, modeling, and quantifying vertical land motion; disentangling processes driving subsidence; projecting future subsidence; assessing impacts; and developing mitigation and adaptation strategies. Especially contributions that bridge disciplinary gaps to enhance projections of coastal relative SLR are welcomed, aligning with the International Panel on Land Subsidence (IPLSubsidence.org) initiative.
Co-Sponsor(s):
  • G - Geodesy
  • H - Hydrology
  • NH - Natural Hazards
  • OS - Ocean Sciences
Index Terms:

1209 Tectonic deformation [GEODESY AND GRAVITY]
1641 Sea level change [GLOBAL CHANGE]
1645 Solid Earth [GLOBAL CHANGE]
1829 Groundwater hydrology [HYDROLOGY]
Primary Convener:  Julius Oelsmann, Tulane University, River-Coastal Science and Engineering, New Orleans, United States; Tulane University, Munich, Germany
Conveners:  Claudia Zoccarato, University of Padova, Dept. of Civil, Environmental and Architectural Engineering, Padova, Italy; University of Delaware, Dept. of Earth Sciences, Newark, United States, Jingyi Chen, The University of Texas at Austin, Aerospace Engineering & Engineering Mechanics, Austin, United States and Torbjorn E Tornqvist, Tulane University, Department of Earth and Environmental Sciences, New Orleans, United States
 
Spatial and Temporal Variability of VLM in Coastal Massachusetts: Implications for Sea-Level Rise Projections (1852549)
Anurag Sharma and Shimon Wdowinski, Florida International University, Miami, FL, United States
 
Emerging Capabilities from Ultra-High-Resolution NewSpace SAR Imagery to Track the Effects of Relative Sea Level Rise: A Case Study in American Samoa (1862302)
Stacey Huang, University of Maryland Baltimore County, Goddard Earth Sciences Technology and Research (GESTAR) II, Baltimore, MD, United States; NASA Goddard Space Flight Center, Greenbelt, United States, Minjeong Jo, NASA Goddard Space Flight Center, Greenbelt, MD, United States; University of Maryland Baltimore County, Goddard Earth Sciences Technology and Research (GESTAR) II, Baltimore, United States, Jeanne M Sauber, NASA Goddard Space Flight Center, Geodesy and Geophysics Laboratory, Greenbelt, MD, United States, Kelley Anderson Tagarino, University of Hawaii Sea Grant, Pago Pago, American Samoa and Carla Baizeau, University of Hawai'i at Mānoa, Honolulu, United States
 
Flooded Economies: Evaluating the Flood and Financial Risks of Inland Subsidence in the Spring Creek Watershed, Southeast Texas, USA (1869668)
Ashley Greuter1, Mohamed Bagha2, Manoj Kc2, Michael J Turco1, Chris Canonico3 and Alan Petrov4, (1)Harris-Galveston Subsidence District, Friendswood, United States, (2)Michael Baker International, Katy, United States, (3)Ardurra Group, Bellaire, United States, (4)Johnson Petrov LLP, Houston, United States
 
Evaluating InSAR-derived rates of surface-elevation change along the central U.S. Gulf Coast (1896171)
Guandong Li and Torbjorn E Tornqvist, Tulane University, Department of Earth and Environmental Sciences, New Orleans, United States
 
Elevation Trajectories of US Atlantic Coast Marshes: Insights from SET-MH Monitoring (1905682)
Md Asif Hasan, Tulane University of Louisiana, Department of Earth and Environmental Sciences, New Orleans, United States and Torbjorn E Tornqvist, Tulane University, Department of Earth and Environmental Sciences, New Orleans, United States
 
Accounting for Near-Coastal Processes Improves Estimates of Vertical Land Motion from Altimetry-Minus-Tide-Gauge along the North American Atlantic and Gulf Coasts (1914234)
William Coronel, Tulane University, Department of River-Coastal Science & Engineering, New Orleans, United States, Sönke Dangendorf, Tulane University, Department of River-Coastal Sciences & Engineering, New Orleans, United States, Robert E Kopp, Rutgers University New Brunswick, Department of Earth and Planetary Sciences, New Brunswick, NJ, United States and Praveen Kumar, Rutgers University New Brunswick, Department of Earth and Planetary Sciences, New Brunswick, United States
 
Depth-dependent subsidence, sedimentation and elevation change in coastal Bangladesh using surface measurements, InSAR and modeling. (1923915)
Michael S Steckler1, Carol Wilson2, Austin Chadwick3, Lin Shen4, Kristy French Tiampo5, Md. Hasnat Jaman3,4, Steven Lee Goodbred Jr6, Bar Oryan7, Sheak Sazzad Mahmud8, Ashraful Alam Tanvir8 and Zohur Ahmed8, (1)Columbia University, Lamont-Doherty Earth Observatory, Palisades, United States, (2)Louisiana State University, Department of Geology & Geophysics, Baton Rouge, LA, United States, (3)Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, United States, (4)Columbia University, Lamont Doherty Earth Observatory, Palisades, United States, (5)University of Colorado at Boulder, CIRES, Department of Geological Sciences, Boulder, United States, (6)Vanderbilt University, Department of Earth and Environmental Sciences, Nashville, TN, United States, (7)Scripps Institution of Oceanography, University of California San Diego, La Jolla, United States, (8)Dhaka University, Department of Geology, Dhaka, Bangladesh
 
Subsidence in Southern Louisiana Based on GPS and Water Level Monitoring with Numerical Modeling (1924865)
Yaneng Zhou, Louisiana State University, Center for Geoinformatics, Baton Rouge, United States, George Voyiadjis, Louisiana State University, Center for GeoInformatics, Baton Rouge, LA, United States and Ahmed Abdalla, Louisiana State University, Department of Civil and Environmental Engineering, Baton Rouge, United States
 
Infrastructure and Ecological Exposure to Coastal Subsidence along Southern Gujarat Bay Area, India (1936955)
Sona Sharma and Chandrakanta Ojha, Indian Institute of Science Education and Research Mohali, Mohali, India
 
Estimating the effect of the lithospheric structure on subsidence induced by sediment isostasy : The case of the GBMD (1950799)
Adrien Henry, University of La Rochelle, Littoral Environnement et Sociétés (LIENSs), UMR 7266 CNRS, La Rochelle, France, C. Jo Grall, LIENSs, CNRS UMR7266, CNRS, LaRochelle University, La Rochelle, France and Michael S Steckler, Columbia University, Lamont Doherty Earth Observatory, Palisades, United States
 
Machine Learning-Based Hazard and Risk Mapping of Subsidence in Dutch Peatlands: A Case Study from Krimpenerwaard Municipality, Zuid-Holland Province (1952171)
Muhannad Hammad, Nicholas Hartono and Esther Stouthamer, Utrecht University, Faculty of Geosciences, Department of Physical Geography, Utrecht, Netherlands
 
Implications of sediment compaction on a 5000-year salt marsh sea-level reconstruction (1960196)
Jennifer Sue Walker, Rowan University, Department of Environmental Science, Glassboro, United States, Matthew Brain, Durham University, Department of Geography, Durham, United Kingdom, Donald Charles Barber, Bryn Mawr College, Departments of Environmental Studies and Geology, Bryn Mawr, PA, United States, Niamh Cahill, Maynooth University, Department of Mathematics and Statistics, Kildare, Ireland and Benjamin Peter Horton, City University of Hong Kong, Hong Kong, Hong Kong
 
Increasing sea levels are surging building collapses throughout the Southern Mediterranean coasts (1974588)
Essam Heggy, Viterbi School of Engineering, University of Southern California, Los Angeles, CA 90089, USA, Los Angeles, United States; NASA Jet Propulsion Laboratory, California Institute of Technology, Pasadena, United States, Sara Fouad, Technical University of Munich, Munich, Germany and Oula Amrouni, National Institute of Marine Sciences and Technologies, Tunis, Tunisia
 
Incorporating short term transients into VLM and RSLR projections: an example from Aotearoa/New Zealand (1975883)
Ian J Hamling1, Richard H Levy1, Tim Naish2 and Sigrun Hreinsdottir1, (1)GNS Science, Lower Hutt, New Zealand, (2)Victoria University of Wellington, Antarctic Research Centre, Wellington, New Zealand
 
Vertical Land Movement in the Pacific Northwest with a Time-Dependent Probabilistic Framework (1978562)
Anna Pearson, University of Washington, Seattle, United States, David A Schmidt, University of Washington Seattle, Department of Earth and Space Sciences, Seattle, United States and Jeonghyeop Kim, Korea Institute of Geoscience and Mineral Resources, Daejeon, South Korea
 
InSAR-SBAS Time-Series Analysis and Hotspot Mapping of Land Deformation with Land Cover–Based Coherence Optimization in the Mississippi River Delta. (1989333)
Rahul Biswas1, Rakesh Salunke2, Sadik Khan1 and Shams E Shifat1, (1)Jackson State University, Civil and Environmental Engineering, Jackson, United States, (2)Jackson State University, Civil and Environmental Engineering, Jackson, MS, United States
 
The History and Development of a Regulatory Solution to Prevent Subsidence in a Multi-Jurisdictional Urban Area, Houston Region, Texas, USA (1996579)
Michael J Turco1, Casey Hughes1, Veronica Osegueda1, Alan Petrov1,2 and Ashley Greuter1, (1)Harris-Galveston Subsidence District, Friendswood, United States, (2)Johnson Petrov LLP, Houston, United States
 
Using Remotely Sensed Inundation to Map Elevation in Low Gradient Coastal Landscapes (2000964)
Christopher R Esposito and Maricel Beltran-Burgos, The Water Institute, Baton Rouge, United States
 
Using Field-derived Elevation Milestones to Inform Synthetic, Historic DEMs for Tidal Marsh Retrospective Modeling Efforts (2001762)
Julia A Cherry, University of Alabama, New College & Department of Biological Sciences, Tuscaloosa, AL, United States, Emily Elliott, University of Alabama, New College & Department of Geography and the Environment, Tuscaloosa, United States, C. Nathan Jones, University of Alabama, Biological Sciences, Tuscaloosa, Alabama, United States and Christopher R Esposito, The Water Institute, Baton Rouge, United States