#naturalhazard — Public Fediverse posts on home.social

💧🌏 Greg Cocks @[email protected] · 2026-07-01 · 03:09 UTC

Impact Of Floods On Surface Water Quality - A Systematic Review And Comprehensive Assessment
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https://doi.org/10.1016/j.jhydrol.2026.135916 <-- shared paper
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https://www.epa.gov/system/files/documents/2024-12/2024-12.pdf <-- shared paper
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“Floods, as extreme flow events, are among the costliest and devastating natural hazards. Among the various domains impacted by flooding, environmental degradation, particularly the deterioration of water quality (WQ), is one of the most impacted yet often overlooked. Therefore, it is essential to understand the nature and source of water pollution associated with flooding. This study aims to evaluate and assess multiple studies conducted globally to determine the impact of floods on WQ. A literature review and assessment of 66 studies published between 2007 and 2026 was conducted using the total comprehensiveness score (TCS). To support the scoring process, studies that scored more than 70% of the maximum achievable TCS (15.4) are considered the most detailed and comprehensive in addressing the objectives of this review. 16 studies achieved a TCS above 15.4, indicating that a limited number of studies incorporate a broader set of factors in this domain. A higher number of studies were conducted post the year 2021, highlighting both scientific progress and a growing focus on WQ impacts from disasters such as floods, beyond the traditionally emphasized socio-economic loss. Among the shortlisted studies, fluvial floods are the most frequently examined, followed by pluvial floods and coastal floods. During fluvial floods, turbidity increased by up to two orders of magnitude, while nutrient concentrations (TN, TP) typically rose by ∼ 10–30%. In contrast, pluvial floods were characterised by dilution-driven decreases in EC and TDS, with DOX, BOD and COD showing variable responses across flood types. This review evaluates flood impacts on WQ, catchment characteristics, and sources of WQ modification. The findings of the research reveal that not all WQ parameters are responsible for WQ degradation during every flood event. Rather, it is a combination of certain parameters that leads to deteriorated WQ. WQ degradation depends on interacting factors such as flood duration, extent, depth, and flow dynamics. In overall, this study provides an overview of the multiple cascading impacts of floods on WQ, along with a detailed perspective on the set of criteria that should be considered in future research…”
#water #hydrology #hydrography #flood #flooding #criteriaassessment #waterpollution #waterquality #parameters #extremeflow #waterresources #extremeweather #waterresources #watermanagement #global #literaturereview #morphology #source #type #watersecurity #research #papers #compilation #humanimpacts #PRISMA #spatiotemporal #fluvial #pluvial #coast #coastal #risk #hazard #riverine #climatechange #EnvironmentalScience #Research #ClimateResilience #floodtype #pollution #naturalhazard

#water #hydrology #hydrography #flood #flooding #criteriaassessment

💧🌏 Greg Cocks @[email protected] · 2026-06-11 · 04:54 UTC

The Growing Threat of Flooding on Transportation Infrastructure Across Texas Through 2100
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https://doi.org/10.1029/2026EF008207 <--shared paper
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H/T @Rakibul Ahasan
“[The researchers] modeled flood susceptibility across Texas at 30 m resolution and projected how it shifts through 2100. The headline is not just that flood risk grows, but that it moves, into places current planning and regulatory maps are not watching. The July 2025 Kerrville flooding sat squarely inside the kind of inland hazard expansion this model projects.
KEY TAKEAWAYS:
● 95% of new flood exposure by 2100 is inland, away from the coast, shifting the resilience problem into interior river basins that planning has historically deprioritized.
● Where [they] benchmarked against FEMA's National Flood Hazard Layer, the model flags substantial hidden risk in rapidly urbanizing peri-urban areas, most notably in Greater Houston.
● Climate change alone expands the flood-susceptible footprint by 10–12% by 2100, before any new road or land-use development, so this is a conservative floor, not a ceiling.
● Half the state's roads and rail and 80% of its bridges already sit in flood-susceptible zones today.
● [They] accounted for both factor-importance and spatial-scale uncertainty, using a Monte Carlo weight-perturbation ensemble and multiscale analysis across nested neighborhoods.
The practical takeaway: this is a statewide screening layer, not a replacement for site-level hydraulic studies. It shows planners and policymakers where the gap between today's protection and tomorrow's risk is widest, and where unmapped peri-urban growth is walking into exposure that regulatory maps still call safe…”
#water #hydrology #hydrography #extremeweather #flood #flooding #Texas #TX #USA #transportation #infrastructure #humanimpacts #risk #hazard #cost #economics #floodsusceptibility #GIS #spatial #mapping #raster #elevation #modeling #model #spatialanalysis #planning #regulation #warning #Kerrville #hazardmapping #floodexposure #inland #coast #urban #urbanisation #development #growth #Houston #lowlying #climatechange #landuse #development #geostatstics #MonteCarlo #regionalscreening #naturalhazard #infrastructureresilience #floodmapping #hydrogeomorphology #geomorphometry #aginginfrastructure

#water #hydrology #hydrography #extremeweather #flood #flooding

💧🌏 Greg Cocks @[email protected] · 2026-06-05 · 00:26 UTC

#NoNaturalDisasters [UN]
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https://www.undrr.org/our-impact/campaigns/no-natural-disasters | https://www.nonaturaldisasters.com/ <-- shared technical articles
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#Resilience #ClimateAction #Governance #risk #hazard #riskassessment #naturalhazard #disaster #humanimpacts #engineeringgeology #NoNaturalDisasters #natural #nature #earthquake #storm #flood #flooding #tsunami #volcano #desertification #wildfire #fires #publicsafety #planning #policy #preparedness #ISO31000 #monitoring #buildingcodes #engineering #landuse #earlywarning #humanmaderisk #exposure #vulnerability #socioeconomic #ecosystems #habitat #livelihoods #farming #infrastructure #buildings #structures #industrial #cost #recovery #economics #homes #extremeweather #hurricane #tornado #resilience #sustainability #poverty #assessment #UNDRR #UN #riskreduction
@United Nations Office for Disaster Risk Reduction

#nonaturaldisasters #resilience #climateaction #governance #risk #hazard

💧🌏 Greg Cocks @[email protected] · 2026-06-05 · 00:26 UTC

#NoNaturalDisasters [UN]
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https://www.undrr.org/our-impact/campaigns/no-natural-disasters | https://www.nonaturaldisasters.com/ <-- shared technical articles
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#Resilience #ClimateAction #Governance #risk #hazard #riskassessment #naturalhazard #disaster #humanimpacts #engineeringgeology #NoNaturalDisasters #natural #nature #earthquake #storm #flood #flooding #tsunami #volcano #desertification #wildfire #fires #publicsafety #planning #policy #preparedness #ISO31000 #monitoring #buildingcodes #engineering #landuse #earlywarning #humanmaderisk #exposure #vulnerability #socioeconomic #ecosystems #habitat #livelihoods #farming #infrastructure #buildings #structures #industrial #cost #recovery #economics #homes #extremeweather #hurricane #tornado #resilience #sustainability #poverty #assessment #UNDRR #UN #riskreduction
@United Nations Office for Disaster Risk Reduction

#nonaturaldisasters #resilience #climateaction #governance #risk #hazard

💧🌏 Greg Cocks @[email protected] · 2026-06-05 · 00:26 UTC

#NoNaturalDisasters [UN]
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https://www.undrr.org/our-impact/campaigns/no-natural-disasters | https://www.nonaturaldisasters.com/ <-- shared technical articles
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#Resilience #ClimateAction #Governance #risk #hazard #riskassessment #naturalhazard #disaster #humanimpacts #engineeringgeology #NoNaturalDisasters #natural #nature #earthquake #storm #flood #flooding #tsunami #volcano #desertification #wildfire #fires #publicsafety #planning #policy #preparedness #ISO31000 #monitoring #buildingcodes #engineering #landuse #earlywarning #humanmaderisk #exposure #vulnerability #socioeconomic #ecosystems #habitat #livelihoods #farming #infrastructure #buildings #structures #industrial #cost #recovery #economics #homes #extremeweather #hurricane #tornado #resilience #sustainability #poverty #assessment #UNDRR #UN #riskreduction
@United Nations Office for Disaster Risk Reduction

#nonaturaldisasters #resilience #climateaction #governance #risk #hazard

💧🌏 Greg Cocks @[email protected] · 2026-06-05 · 00:26 UTC

#NoNaturalDisasters [UN]
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https://www.undrr.org/our-impact/campaigns/no-natural-disasters | https://www.nonaturaldisasters.com/ <-- shared technical articles
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#Resilience #ClimateAction #Governance #risk #hazard #riskassessment #naturalhazard #disaster #humanimpacts #engineeringgeology #NoNaturalDisasters #natural #nature #earthquake #storm #flood #flooding #tsunami #volcano #desertification #wildfire #fires #publicsafety #planning #policy #preparedness #ISO31000 #monitoring #buildingcodes #engineering #landuse #earlywarning #humanmaderisk #exposure #vulnerability #socioeconomic #ecosystems #habitat #livelihoods #farming #infrastructure #buildings #structures #industrial #cost #recovery #economics #homes #extremeweather #hurricane #tornado #resilience #sustainability #poverty #assessment #UNDRR #UN #riskreduction
@United Nations Office for Disaster Risk Reduction

#riskreduction #un #undrr #assessment #poverty #sustainability

💧🌏 Greg Cocks @GregCocks · 2026-06-05 · 00:26 UTC

#NoNaturalDisasters [UN]
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https://www.undrr.org/our-impact/campaigns/no-natural-disasters | https://www.nonaturaldisasters.com/ <-- shared technical articles
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#Resilience #ClimateAction #Governance #risk #hazard #riskassessment #naturalhazard #disaster #humanimpacts #engineeringgeology #NoNaturalDisasters #natural #nature #earthquake #storm #flood #flooding #tsunami #volcano #desertification #wildfire #fires #publicsafety #planning #policy #preparedness #ISO31000 #monitoring #buildingcodes #engineering #landuse #earlywarning #humanmaderisk #exposure #vulnerability #socioeconomic #ecosystems #habitat #livelihoods #farming #infrastructure #buildings #structures #industrial #cost #recovery #economics #homes #extremeweather #hurricane #tornado #resilience #sustainability #poverty #assessment #UNDRR #UN #riskreduction
@United Nations Office for Disaster Risk Reduction

#nonaturaldisasters #resilience #climateaction #governance #risk #hazard

💧🌏 Greg Cocks @[email protected] · 2026-03-06 · 04:34 UTC

Karst Flash Floods - An Example From The Dinaric Karst (Croatia)
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https://doi.org/10.5194/nhess-6-195-2006 <-- shared (older) paper
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#flood #flooding #pluvial #fluvial #subsurface #risk #hazard #naturalhazard #disaster #flashflood #infrastructure #damage #building #destabilisation #foundations #karstburst #Marina #Dinaric #Croatia #extremeweather #climatechange #intense #prolonged #rainfall #precipitation #speed #fast #caves #conduits #fractures #aquifers #water #hydrology #groundwater #hydrogeology #waterpressure #sinkhole #subsidence #massmovement #landslide #monitoring #mapping #geology #engineeringgeology #hydroseismic #humanimpacts #lossoflife #death #karstterrain #springs #debris #sediment #cavities #riskassessment #Grazalema #Andalusia #Cadíz #Spain #StormLeonard #emergencymanagement #planning

#flood #flooding #pluvial #fluvial #subsurface #risk

💧🌏 Greg Cocks @[email protected] · 2026-03-04 · 05:00 UTC

United States Tsunami Alerting Analysis, 2026 Report
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https://mil.wa.gov/asset/69a08a91462bf/United-States-Tsunami-Alerting-Analysis-2026-updated.pdf <-- shared report PDF
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#naturalhazard #earthquake #USA #alert #monitoring #tsunami #risk #hazard #humanimpacts #lossoflife #death #infrastructure #damage #cost #economics #coast #coastal #nationwide #hazardassessment #emergencymanagement #GIS #spatial #instrumentation #spatialanalysis #model #modeling #operations #geography geomorphometry demographics #geologichazard #alertsystems #warning #ocean #marine #wave #emergencyresponse #planning #messaging #response
@National Tsunami Hazard Mitigation Program

#naturalhazard #earthquake #usa #alert #monitoring #tsunami

💧🌏 Greg Cocks @[email protected] · 2026-03-02 · 02:50 UTC

Ice-Patch Collapse And Early-Warning Implications From A Himalayan Flash Flood - Emerging Cryo-Hydrological Hazards Under Deglaciation
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https://doi.org/10.1038/s44304-026-00191-x
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https://youtu.be/zZXER7DocfY?si=lYOE_a6YwigP3-mB
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#GIS #spatial #mapping #glacier #glacial #cryosphere #risk #hazard #flood #flooding #flashflood #earthobservation #cryohydrology #ice #snow #water #hydrogy #Himalaya #Himalayan #extremeweather #monitoring #risk #hazard #forecasting #DharaliFlashFlood #CryosphereScience #Deglaciation #EarlyWarning #RemoteSensing #Himalayas #NaturalHazards #ClimateChange #GlacierResearch #OpenScience #highmountain #mountain #slope #steepness #erosion #fluvial #nivation #Uttarakhand #India #SrikantaGlacier #DEM #elevation #satellite #chronology #reconstruction #ablation #debris #sedimentation #debrisflow #meltwater #debris #surge #massmovement #engineeringgeology #cryospherichazard #terrain #spatialanalysis #spatiotemporal #earlywarning #naturalhazard #channel #topography #geography #hydrogeomorphology #geomorphology #Dharali

#gis #spatial #mapping #glacier #glacial #cryosphere

💧🌏 Greg Cocks @[email protected] · 2026-02-26 · 03:53 UTC

Fatal Debris Avalanche On An Anthropogenically Disturbed, Earthquake-Perturbed Slope During Antecedent Rainfall [Turkey]
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https://doi.org/10.1007/s10346-026-02713-0 <-- shared paper
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https://eos.org/thelandslideblog/gungoren-hillslope-1 <-- shared technical article
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https://geohazard.itu.edu.tr/en/news-detail/2025/01/23/could-the-g%C3%BCng%C3%B6ren-arhavi-%28artvin%29-landslide-be-predicted <-- shared technical article
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https://zenodo.org/records/14625940 <-- shared technical article/paper
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#rainfall #precipitation #pluvial #massmovement #monitoring #Turkey #Türkiye #Güngören #Artvin #remotesensing #earthobservation #GIS #spatial #mapping #LiDAR #UAV #InSAR #radar #spatialanalysis #spatiotemporal #massmovement #risk #hazard #geology #landslide #engineeringgeology #anthropogenic #humnacimpacts #manmade #quarry #highway #stability #earthquake #trigger #slopestability #naturalhazard #disaster #debrisflow #fatal #lossoflife #publicsafety #fieldwork #model #failure #geomorphology #kinematic #geomorphometry #creeping #extremeweather #multiple #recurrence #progressive #groundmotion #susceptibility

#rainfall #precipitation #pluvial #massmovement #monitoring #turkey

💧🌏 Greg Cocks @[email protected] · 2025-11-20 · 05:36 UTC

Four [US] States Leading the Way on Flood Resilience
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From Iowa's pioneering flood-monitoring network to North Carolina's comprehensive resilience blueprint, states are demonstrating what's possible when local leaders take ownership of their climate futures.
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https://www.epicenterinsights.com/four-states-leading-the-way-on-flood-resilience/ <-- shared technical media article
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https://floodplainsbydesign.org/ <-- shared Floodplains By Design, Washington State
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#water #hydrology #floodplainsbydesign #FBD #flood #flooding #floodplains #natural #risk #hazard #naturalhazard #publicsafety #cost #economics #infrastructure #mitigation #resilience #extremeweather #rainfall #surge #precipitation #hydrospatial #Iowa #NorthCarolina #Wisconsin, #Washington #WashingtonState #policy #planning #spatialanalysis #floodresilience #program # readiness #public #private #regulations #USStates #USA #monitoring #blueprint

#water #hydrology #floodplainsbydesign #fbd #flood #flooding

💧🌏 Greg Cocks @[email protected] · 2025-09-05 · 00:07 UTC

Thirty Years Of The U.S. National Land Cover Database [NLCD] - Impacts And Future Direction
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https://doi.org/10.14358/PERS.25-00121R2 <-- shared paper
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https://www.usgs.gov/centers/eros/science/annual-national-land-cover-database <-- shared #USGS Annual National Land Cover Database (open data)
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https://www.usgs.gov/centers/eros/science/annual-national-land-cover-database <-- get the open NLCD data
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#GIS #spatial #mapping #history #continuity #improvement #LandCover #Landuse #change #Landsat #NLCD #NationalLandCoverDatabase #earthobservation #remotesensing #landchange #monitoring #fedscience #publicgood #fedopendata #opendata #history #fedservice #MRLCC #USA #download #impervious #surface #forestcanopy #mosaics #accuracy #deeplearning #AI #research #landmanagement #agriculture #water #hydrology #cropland #biodiversity #conservation #urban #planning #publichealth #naturalhazard #assesment #risk #hazard #mitigation #national #nation #multiple #usecase
#USGS | #EROS

#usgs #gis #spatial #mapping #history #continuity

Giuseppe Bilotta @[email protected] · 2025-02-25 · 17:36 UTC

I'm going to take advantage of the current #eruption on Mt #Etna to discuss some of the challenges of #modelling #lava flows. Buckle up (or just silence me) because this is going to be a long thread.

First of all, why do we want to model lava flows? The answer most definitely isn't «because we can», since —as I'm going to explain momentarily— we actually cannot. Still having an idea about how lava flows and sets in place is a powerful tool for the assessment (and possibly mitigation) of the associated #hazard and #risk: if we can tell how lava flows, we can tell which areas are going to be reached by the lava, and hopefully also improve the design of tactical and strategic actions that can be taken to minimize the damage.

(Of course, whether or not those actions will then be taken is an entirely different matter, but that's mostly politics, not science.)

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#MtEtna #modelling #simulation #CFD #NaturalHazard #hazardAssessment #riskAssessment #riskMitigation