#sealevel — Public Fediverse posts

From Fragmentation To Integration - A Review Of Data–Model Integration In Land Subsidence Research
--
https://doi.org/10.1016/j.ancene.2026.100567 <-- shared paper
--
H/T @manonzero current drought conditions, increasing pressure on ecosystems, and ongoing climate adaptation challenges, land subsidence is receiving growing attention worldwide.
For anyone wanting to learn more about land subsidence, or get a refresher, [the authors] provide an overview of the processes involved, the ways it can be measured or estimated, the models used to simulate it, and how observations and models can be combined, [their] new [#openaccess] review paper [link above] may be of interest!
A central message of the paper is that understanding and managing land subsidence requires bringing these different sources of information together…”
--
“HIGHLIGHTS:
• Presents a comprehensive synthesis that unifies all major elements of integral land-subsidence research.
• Defines the methodological steps needed for full integration and positions them within the broader challenges posed by subsidence.
• Brings together and distills the key components of data, modelling, and integration into a coherent framework.
ABSTRACT: Land subsidence, the sinking of the Earth’s surface, is a multi-faceted hazard driven by both natural and anthropogenic factors, and poses significant risk to environments, ecosystems, and society. Despite decades of growing research output, substantial gaps persist between investigations on the diversity of causes, reflected in data and model insufficiency. These gaps hinder the understanding of the issue and impede the effectiveness of mitigation measures. Many studies have urged to include all identified subsidence processes acting in a single area in an integral framework, for which a complex analysis has not systematically been outlined before. Therefore, [they] focus here on bridging the gaps between various technical research disciplines involved. [They] stress the urgency for an integral approach that combines observations with subsurface information of all known subsidence processes in an area, and [they] appeal for utilizing them in physics-guided data integrations. Only then can all subsidence drivers be understood, and effective mitigation measures designed. [They] outline the elements for an integral approach in categorical tables and schematized figures, and [they] discuss the main opportunities and challenges in a stepwise workflow. Leveraging these opportunities naturally leads to more robust, scalable, and policy-relevant solutions and fosters a more sustainable future…”
#Land #subsidence #processes #Verticallandmotion #SLR #sealevel #sealevelrise #relativesealevelrise #modeling #data #model #InSAR #elevation #holistic #GIS #spatial #mapping #climate #drought #extremeweather #climatechange #climateadaption #ecosystems #measurement #monitoring #research #review #framework #overview #risk #hazard #anthropogenic #mitigation #engineering #water #hydrology #policy #planning #design #remotesensing #spatialanalysis #spatiotemporal

Quantifying UK Coastal Flood Exposure Under Future Sea-Level Rise To [2100 and] 2300
--
https://doi.org/10.1038/s41467-026-74982-1 <-- shared paper
--
https://www.theguardian.com/environment/2026/jul/21/millions-long-term-coastal-flooding-risk-uk-climate-action <-- shared media article
--
H/T @University of Bristol School of Geographical Sciences
“🌊 New research on long-term coastal flooding as a result of climate inaction 🌊
… The researchers found:
🔷 By 2100 at least an additional 0.5 million people exposed to the 1-in-200 year undefended flood extent - a 25% increase compared to present day.
🔷 Under the most pessimistic storyline by 2300 involving significant ice-sheet instability, an additional 13 million people could be exposed to the 1-in-200 year undefended flood event.
🔷 Under some scenarios there is a need for large-scale movement of populations and settlements away from the coast in the coming centuries…”
--
“Up to 13 million people in the UK face the long-term risk of coastal flooding due to the climate crisis, scientists have warned, with a ‘reasonable worst-case scenario’ suggesting the need for the large-scale movement of populations away from a dramatically reshaped coast…
Sea level has risen by about 20cm around the UK in the last century and is accelerating. A further 40cm to 60cm by 2100 is already baked in, meaning about half a million more people will be at risk of their homes being flooded, on top of the 2.5 million already in danger near the coasts. Lincolnshire and the Humber estuary are most in danger…”
--
“The latest Intergovernmental Panel on Climate Change assessment report highlighted the potential for more than 15 metres of global sea-level rise by 2300. In this study, [the authors] explore the implications for UK coastal flood exposure by combining national-scale flood modelling with physically-based storylines of UK sea-level rise. By 2100 all storylines show broadly similar results with at least an additional ½ million people exposed to the 1-in-200 year undefended flood extent, which represents a 25% increase compared to present day. Under the most pessimistic storyline by 2300 involving significant ice-sheet instability, an additional 13 million people could be exposed to the 1-in-200 year undefended flood event. This would imply the potential need for large-scale movement of populations and settlements away from the coast in the coming centuries. Given current global emissions pledges, exposure increases by 1.7 million people by 2300, however up to 1 million could be avoided if Paris Agreement targets for greenhouse gas emissions are met…”
#coast #coastal #innundation #climatechange #global #sealevel #sealevelrise #SLR #flood #flooding #climatechange #population #infrastructure #UK #England #Scotland #Wales #NorthernIreland #Lincolnshire #Humber #estuary #settlement #city #urban #mitigation #planning #policy #infrastructure #risk #hazard #humanimpacts #spatialanalysis #spatiotemporal #GIS #spatial #mapping #coastalflooding #climatecrisis #model #modeling #elevation #DEM

Beyond The 100-Year Flood - Probabilistic Flood Hazard Assessment For King And Pierce Counties Under Future Climate Scenarios
--
https://doi.org/10.5194/nhess-26-3231-2026 <-- shared #openacess paper
--
[part of my old stomping ground as an engineering geologist]
H/T @Kees Nederhoff
“Flood maps are usually built from a single design storm. For King and Pierce Counties in the Pacific Northwest (USA), [the authors] tried the opposite - simulate 82 years of actual coastal and river conditions (plus 18 synthetic years) with SFINCS and let the statistics fall out cell by cell. That took about 5,400 yearly simulations and 194,000 CPU hours on USGS's Hovenweep HPC. Worth it!
The design-event shortcut turns out to hide a real hazard. A deterministic 10-year event underestimated flood depths by up to half a meter compared to the continuous runs.
The bigger surprise [to the authors] was how one-sided the climate signal is. One metre of sea level rise takes King County's expected annual flooded area from 161 --> 787 hectares, almost a factor of five. Changes in storminess over the same horizon barely register. And somewhere between 100 and 150 cm of SLR, land that never floods today starts flooding fast. If you plan adaptation in Puget Sound, that threshold matters more than any single return-period map.
[They] also propose Expected Annual Flooded Area (EAFA) as a probability-weighted alternative to the binary "inside or outside the 100-year zone" label…”
#USGS #supercomputing #Hovenweep #HPC #coast #coastal #PNW #Seattle #PacificNorthwest #risk #hazard #riskmanagement #model #modeling #CFRM #deterministic #probabilistic #climatechange #extremeweather #fedscience #WA #KingCounty #PierceCounty #WashingtonState #USA #flood #flooding #compoundflooding #floodmaps #SFINCS #storm #weather #climate #climatechange #rainfall #precipitation #sealevel #sealevelrise #SLR #100yearflood #floodhazardmapping #returnperiods #pluvial #fluvial #spatialanalysis #spatiotemporal #remotesensing #streamgage #history #historicflooding #projections #predictions
#USGS

Sea Levels Rising Dramatically In Some Areas Due To Land Subsidence [global]
--
https://phys.org/news/2026-05-sea-areas-due-subsidence.html <-- shared technical article
--
https://doi.org/10.1038/s41467-026-72293-z <-- shared paper
--
[#VLM = vertical land motion; #ASL = absolute sea-level; #RSL = relative sea-level; #GIA = (global) Glacial Isostatic Adjustment; #inSAR = Interferometric Synthetic Aperture Radar; #GNSS = Global Navigation Satellite System (~GPS); #OE24 = paper, https://doi.org/10.1038/s41561-023-01357-2, interpolated VLM reconstruction based on the joint analysis of GNSS, tide gauges (TGs), and satellite altimetry]
#GIS #spatial #mapping #remotesensing #earthobservation #sealevel #verticallandmotion #absolutesealevel #relativesealevel #GlacialIsostaticAdjustment #geomorphometry #SLR #sealevelrise #coast #coastal #flood #flooding #subsidence #landmass #landsubsidence #global #globalsealevelrise #climatechange #city #urban #farmlands #population #demographics #cities #planning #community #elevation #monitoring #spatialanalysis #spatiotemporal #altimetry

Assessment of Shoreline Change in Southeast Ireland Using Geospatial Techniques
--
https://doi.org/10.3390/su18073280 <-- shared paper
--
"... KEY INSIGHTS:
• Coastlines are highly dynamic — 57% accretion vs 42% erosion
• Strong contrasts between east-facing (Irish Sea) and south-facing (Atlantic) coasts
• Identification of critical erosion hotspots (e.g., Tramore) and accretion zones in embayments
• Coastal change is driven by a combination of wave climate, sediment availability, geology, and human activity
--
#GIS #spatial #mapping #Ireland #coast #coastal #dynamics #erosion #accretion #shoreline #change #digitalshoreline #spatialanalysis #spatiotemporal #remotesensing #earthobservation #SoutheastIreland #embayments #wave #climate #stormsurge #geology #humanimpacts #coastalmanagement #risk #hazard #mitigation #sealevel #RSL #risingsealevels #climatechanage #adaption #extremeweather #stormintensity #planning #monitoring #sustainable #Landsat #satellite #regional

Global Subsidence Of River Deltas
--
https://doi.org/10.1038/s41586-025-09928-6 <-- shared paper
--
H/T Wageningen University & Research
“🌊🔍 River deltas are sinking!
A new study [link above] reveals that river deltas worldwide are sinking significantly, faster than sea levels rise..."
#GIS #mapping #spatial #remotesensing #NASA #earthobservation #RiverDelta #ClimateChange #spatialanalysis #spatiotemporal #water #hydrology #marine #river #delta #coast #coastal #global #subsidence #groundwater #extraction #pumping #overpumping #watertable #hydrogeology #sediment #waterresources #planning #policy #landuse #landscape #hydrogeomorphology #worldwide #riverdelta #humanimpacts #ecosystems #sealevel #sealevelrise #SLR #flood #flooding #landloss #salinity #risk #hazard #salinization #vulnerable #measurements #monitoring #elevation #insar #radar #surfaceelevation #anthropogenic #urbanexpansion

Antarctic Meltwater Alters Future Projections Of Climate And Sea Level
--
https://doi.org/10.1038/s41467-025-64438-3 <-- shared paper
--
https://doi.org/10.7275/6t64-wy56 <-- shared link to scripts for running the models and creating the figures in this data repository
--
#GIS #spatial #mapping #model #modeling #sealevel #sealevelerise #meltwater #Antarctic #projection #forecast #global #climatechange #icesheet #massloss #refinement #meansealevel #SouthernOcean #fluvial #pluvia; #precipitation #overturningcirculation #heattransport #temperature #Pacific #Atlantic #ocean #marine #spatialanalysis #spatiotemporal

New Study Links Flood Risk And Hurricane Attributes In Southwest Florida
--
https://coastalscience.noaa.gov/news/new-study-links-flood-risk-and-hurricane-attributes-in-southwest-florida/ <-- shared technical article
--
https://doi.org/10.1038/s44304-025-00141-z <-- shared paper
--
H/T NOAA Centers for Coastal Ocean Science
#water #hydrology #extremeweather #flood #flooding #hurricane #model #modeling #Irma #Ian #HurricaneIrma #HurricaneIan #cost #damage #infrastructure #damage #FEMA #HAZUS #Florida #CollierCounty #insurance #risk #hazard #usecase #casestudy #publicsafety #SLR #sealevel #sealevelrise #floodmodel #model #modeling #spatialanalysis #opendata #storm #stormsurge #vegetation #mangrove #NFIP #spatial #GIS #mapping
#NOAA

The impacts of fossil fuel emissions are gnawing on Australia's coastline

"Australia's exposure to current and future risks from the sea, including coastal erosion, king tides and rising sea levels, was "very high", The Insurance Council of Australia.

"Sea level rise caused by climate change would mean the issue was not going away, and Australians needed to consider what we valued about our coastline."

"Why a seawall might not protect both beaches and homes from coastal erosion...We'll end up with a giant wall around our beaches, or around our whole coastline. That's not saving the landscape, that's saving the infrastructure. We've got to slow down development and look at what we value about the beach."

Professor Kennedy "said governments would need to consider buying back beachfront land and rehabilitating it, to protect both infrastructure and the beach."
>>
https://www.abc.net.au/news/2025-07-22/frankston-seawall-tides-costal-erosion-housing-australia/105555380
#Coast #erosion #inundation #FossilFuels #climate #SeaLevel #values #Coastal #sprawl #StrandedAssets #SandCastles #walls #PublicLand

Advancing Compound Flood Modeling to Evaluate Coastal Protection Benefits of Natural Infrastructure
--
https://coastalscience.noaa.gov/news/advancing-compound-flood-modeling-to-evaluate-coastal-protection-benefits-of-natural-infrastructure/ <-- shared technical article
--
https://doi.org/10.1016/j.scitotenv.2024.173529 <-- shared paper
--
#flood #flooding #literaturesearch #compilation #coast #coastal #coastalengineering #mitigation #planning #management #framework #model #modeling #infrastructure #natural #barrier #rainfall #precipitation #climatechange #river #discharge #stormsurge #sealevel #seallevelrise #waves #tides #compoundflooding #humanimpacts #communities #publicsafety #cost #loss #economics #fedscience #fedservice #hydrology #water #marine #ocean #hydraulic #hydrodynamic #biology #ecosystems #vegetation #sedimentation #erosion #GIS #spatial #mapping #spatialanalysis #regional #local #forecasting #preparation #enduser #usecase #publicwarnings #marsh #sawmp #mangrove
@NOAA | @NOAA Ocean | @NOAA Centers for Coastal Ocean Science

The Great Mediterranean Drain - How 70% Of Its Water Vanished In A Geological Crisis [sic]
--
https://scitechdaily.com/the-great-mediterranean-drain-how-70-of-its-water-vanished-in-a-geological-crisis/ <-- shared technical article
--
https://doi.org/10.1038/s41467-024-53781-6 <-- shared paper
--
#GIS #spatial #mapping #model #modeling #spatialanalysis #spatiotemporal #Mediterranean #MediterraneanSea #MessinianSalinityCrisis #geologicalevent #geology #salinity #water #waterquality #impacts #salt #deposition #sediment #Atlantic #brine #evaporation #sealevel #isostatic #climatechange #geologichistory #chlorine #isotopes #halite

Researchers Reconstruct Landscapes That Greeted The First Humans In Australia Around 65,000 Years Ago
--
https://phys.org/news/2024-04-reconstruct-landscapes-humans-australia-years.html <-- shared technical article
--
https://doi.org/10.1038/s41467-024-47662-1 <-- shared paper
--
#GIS #spatial #mapping #anthropology #archaeology #indigenous #migration #sahul #Australia #aboriginal #FirstNation #spatialanalysis #spatiotemporal #NewGuinea #Tasmania #sealevel #hominin #hominoid #landscape #evolution #climatechange #megafauna #population #demographics #environment #environmental #climatechange #landscapeevolution #model #modeling #terrains #foodsecurity #watersecurity #drivers #huntergatherers #community #simulations #physiographic #physiography

Researchers Reconstruct Landscapes That Greeted The First Humans In Australia Around 65,000 Years Ago
--
https://phys.org/news/2024-04-reconstruct-landscapes-humans-australia-years.html <-- shared technical article
--
https://doi.org/10.1038/s41467-024-47662-1 <-- shared paper
--
#GIS #spatial #mapping #anthropology #archaeology #indigenous #migration #sahul #Australia #aboriginal #FirstNation #spatialanalysis #spatiotemporal #NewGuinea #Tasmania #sealevel #hominin #hominoid #landscape #evolution #climatechange #megafauna #population #demographics #environment #environmental #climatechange #landscapeevolution #model #modeling #terrains #foodsecurity #watersecurity #drivers #huntergatherers #community #simulations #physiographic #physiography

Researchers Reconstruct Landscapes That Greeted The First Humans In Australia Around 65,000 Years Ago
--
https://phys.org/news/2024-04-reconstruct-landscapes-humans-australia-years.html <-- shared technical article
--
https://doi.org/10.1038/s41467-024-47662-1 <-- shared paper
--
#GIS #spatial #mapping #anthropology #archaeology #indigenous #migration #sahul #Australia #aboriginal #FirstNation #spatialanalysis #spatiotemporal #NewGuinea #Tasmania #sealevel #hominin #hominoid #landscape #evolution #climatechange #megafauna #population #demographics #environment #environmental #climatechange #landscapeevolution #model #modeling #terrains #foodsecurity #watersecurity #drivers #huntergatherers #community #simulations #physiographic #physiography

Researchers Reconstruct Landscapes That Greeted The First Humans In Australia Around 65,000 Years Ago
--
https://phys.org/news/2024-04-reconstruct-landscapes-humans-australia-years.html <-- shared technical article
--
https://doi.org/10.1038/s41467-024-47662-1 <-- shared paper
--
#GIS #spatial #mapping #anthropology #archaeology #indigenous #migration #sahul #Australia #aboriginal #FirstNation #spatialanalysis #spatiotemporal #NewGuinea #Tasmania #sealevel #hominin #hominoid #landscape #evolution #climatechange #megafauna #population #demographics #environment #environmental #climatechange #landscapeevolution #model #modeling #terrains #foodsecurity #watersecurity #drivers #huntergatherers #community #simulations #physiographic #physiography

Researchers Reconstruct Landscapes That Greeted The First Humans In Australia Around 65,000 Years Ago
--
https://phys.org/news/2024-04-reconstruct-landscapes-humans-australia-years.html <-- shared technical article
--
https://doi.org/10.1038/s41467-024-47662-1 <-- shared paper
--
#GIS #spatial #mapping #anthropology #archaeology #indigenous #migration #sahul #Australia #aboriginal #FirstNation #spatialanalysis #spatiotemporal #NewGuinea #Tasmania #sealevel #hominin #hominoid #landscape #evolution #climatechange #megafauna #population #demographics #environment #environmental #climatechange #landscapeevolution #model #modeling #terrains #foodsecurity #watersecurity #drivers #huntergatherers #community #simulations #physiographic #physiography

#Gaming : Sorti aujourd'hui sur un peu toutes les plateformes disponibles (et en français), #HIGHWATER :blobaww: 🌊

Le pitch : « Quand les terres ont été submergées par les océans, d'autres problèmes n'ont pas tardé à arriver. Avec les ressources de plus en plus difficiles à obtenir, les humains sont devenus leurs propres ennemis se battant pour le moindre lopin de terre émergé. »

› https://www.indiemag.fr/articles/highwater-exploration-dun-monde-submerge
› https://demagogstudio.com/Highwater

#IndieGame #SeaLevel

Predicting The Fate Of Shallow Coastal Ecosystems For The Year 2100
--
https://phys.org/news/2023-11-fate-shallow-coastal-ecosystems-year.html <-- shared technical article
--
https://doi.org/10.1371/journal.pclm.0000298 <-- shared paper
--
#GIS #spatial #mapping #sealevelrise #SLR #sealevel #coast #coastalecosystems #climatechange #model #modeling #spatialanalysis #global #spatiotemporal #coral #mangroves #marshes #seagrass #meadows #warming #seawater #microagal #marine #ecosystems #tidal #tidalmarshes #coastaldevelopment #humanimpacts #construction #development #coastalengineering #infrastructure #coastalmanagement #coastalprotection #mitigation #habitat #geomorphology #topobathy #bathymetry

Liquefaction And Sea-Level Rise
--
https://www.usgs.gov/tools/liquefaction-and-sea-level-rise <-- shared technical article
--
https://geonarrative.usgs.gov/liquefactionandsealevelrise/ <-- shared story map
--
https://www.theatlantic.com/science/archive/2019/06/earthquakes-and-sea-level-rise-are-deadly-combination/592945/ <-- shared media article
--
#GIS #spatial #mapping #model #modeling #earthquake #sealevelrise #risk #hazard #liquefaction #suspectibility #potential #climatechange #SanFranciso #haywire #haywardfault #CoastalStormModelingSystem #CSMS #spatialanalysis #geology #engineeringgeology #hydrology #water #soil #sediment #groundwater #aquifer #coast #coastal #SLR #sealevel #groundwatertable #sensitivesoils #hazardanalysis #riskmanagement #fill #artificialfill #backfill #usgs #California #USA

Are #Coastal #Nuclear Power Plants Ready for #SeaLevelRise?

As shorelines creep inland and #storms worsen, nuclear reactors around the world face new challenges.

by John Vidal, August 21, 2018

"The outer defensive wall of what is expected to be the world’s most expensive nuclear power station is taking shape on the shoreline of the choppy gray waters of the Bristol Channel in western England.

"By the time the US $25-billion #HinkleyPointC nuclear station is finished, possibly in 2028, the concrete seawall will be 12.5 meters high, 900 meters long, and durable enough, the UK regulator and French engineers say, to withstand the strongest storm surge, the greatest tsunami, and the highest sea-level rise.

"But will it? Independent nuclear consultant #PeteRoche, a former adviser to the UK government and #Greenpeace, points out that the tidal range along this stretch of coast is one of the highest in the world, and that #erosion is heavy. Indeed, observers reported serious flooding on the site in 1981 when an earlier nuclear power station had to be shut down for a week, following a #SpringTide and a #StormSurge. However well built, says Roche, the new seawall does not adequately take into account #sealevel rise due to climate change.

"#Flooding can be catastrophic to a nuclear power plant because it can knock out its electrical systems, disabling its cooling mechanisms and leading to overheating and possible #meltdown and a dangerous release of #radioactivity. Flooding at the #FukushimaDaiichi plant in Japan as a result of the March 2011 tsunami caused severe damage to several of the plant’s reactors and only narrowly avoided a catastrophic release of radioactivity that could have forced the evacuation of 50 million people.

"In the #UnitedStates, where nine nuclear plants are within three kilometers of the #ocean and four reactors have been identified by Stanford academics as vulnerable to #StormSurges and sea-level rise, flooding is common, says David Lochbaum, a former nuclear engineer and director of the nuclear safety project at the Union of Concerned Scientists (#UCS).

"Lochbaum says over 20 flooding incidents have been recorded at US nuclear plants since the early 1980s. “The most likely [cause of flooding] is the increasing frequency of extreme events,' he says."

#ExtremeWeather #ClimateCrisis #NuclearPlants #UK #HinkleyPoint #CoastalFlooding

Full article:
https://hakaimagazine.com/features/are-coastal-nuclear-power-plants-ready-for-sea-level-rise/

Martin Ekman gave the first #GIAschool2023 lecture on The History of Land Uplift Research, drawing from his book The Changing Level of the Baltic Sea during 300 Years: A Clue to Understanding the Earth. This and other Historical Geophysics books here: https://historicalgeophysics.ax

#sciencehistory #GIA #icesheets #sealevel #geophysics #iceage

Worried About Sea Level Rise? Look For The Lichens
--
https://hakaimagazine.com/news/worried-about-sea-level-rise-look-for-the-lichens/ <-- shared article
--
#GIS #spatial #mapping #marine #climatechange #SLR #sealevel #sealevelrise #lichen #environmental #water #future #infrastructure #coast #coastal #indicators #spatialanalysis #spatiotemporal #saltwater #flooding #inundation #species #algae #cyanobacteria #fungus #risk #planning #hazard #impacts #impactassessment