#floodrisk — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #floodrisk, aggregated by home.social.
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Coastal Flooding At Predictable Hours
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https://doi.org/10.1038/s41467-026-75710-5 <-- shared paper
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H/T @bruna Alves | Nature Communications | Editor
“When do coastal floods happen? ⏱️🌊
A new study [link above] shows that, in many tide-dominated coastal regions, flooding tends to occur at specific and recurring times of day. Rather than being completely random, flood events often cluster around predictable hours driven by local tidal patterns.
By analysing coastal flood observations from the UK and the US, [the authors] show[ed] that the timing of flood events can be highly structured, with some locations experiencing floods disproportionately during certain parts of the day.
This adds a temporal dimension to coastal flood risk. We often focus on how frequently floods occur, how severe they are, and where they happen. This study highlights that when they occur may also matter, particularly as rising sea levels increase the frequency of coastal flooding.
The findings provide a useful perspective for coastal adaptation, risk communication, and emergency planning…”
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“Flooding is typically perceived as a sudden and unpredictable hazard. Here, [they] show that recurrent flooding can occur at highly predictable times in tidally dominated coastal systems. This predictability stems from phase-locking of tidal constituents and constituent pairs with the solar day, causing peak tides to recur at consistent local times set by regional tidal propagation. Using tide-gauge records from the United States and the United Kingdom, [they] quantif[ied] the intraday timing of coastal flood events and show strong clustering at specific hours, particularly where semidiurnal or mixed tides dominate. For example, floods in Boston cluster around noon and midnight, whereas in southern California they occur in the morning. Sites with stronger non-tidal variability show weaker clustering. This temporal predictability extends beyond nuisance flooding to larger consequential events involving inundation, road closures and infrastructural damage, highlighting opportunities for anticipatory risk communication, emergency planning and time-sensitive coastal adaptation…”
#coast #coastal #flood #flooding #spatialanalysis #spatiotemporal #time #statistics #geostatistics #tide #tidal #timing #temporal #floodrisk #risk #hazard #sealevel #sealevelrise #climatechange #emergency #planning #tideguage #UK #USA #innundation #infrastructure #transportation #riskcommunication -
#WaterburyCT receives $339K DEEP grant for #RisdonDam removal project
By Dalton Zbierski, 7/4/2026
"A vision in Waterbury is en route to becoming reality, as the city received a grant from the state this week to help kickstart the Risdon #DamRemoval Project on South Main Street.
"The $339,000 Long Island Sound Ecosystems Grant from the Connecticut Department of Energy and Environmental Protection will fund an important early stage of the project to remove the aging Risdon Dam.
"The grant will cover the environmental investigation, engineering design and permitting required for the removal of the dam, which is located behind the former factory at 2100 South Main St.
"A release this week from the city announced the award from DEEP and explained the purpose of the project.
"Removing the dam will restore the natural flow of #HopevillePondBrook, a tributary of the #NaugatuckRiver within the #LongIslandSound #watershed.
"The project aims to improve #AquaticHabitat, reconnect #StreamCorridors, reduce #FloodRisk and eliminate a deteriorating structure that poses safety risks for nearby properties and infrastructure, according to city officials.
"It will take approximately one year to complete the planning, design and permitting phase. Then, the construction will move on to bidding.
"On Wednesday, Waterbury Mayor Paul Pernerewski, Jr. said the grant represents another significant investment in the city’s infrastructure and #EnvironmentalStewardship.
" 'Removing the Risdon Dam will improve the health of Hopeville Pond Brook, reduce flood risks and help restore a more resilient #ecosystem for #FutureGenerations,' Pernerewski said.
"The mayor also thanked #DEEP for its support and collaboration in helping the project move forward.
"DEEP Commissioner #KatieDykes, who will be leaving her position this month, said the project marks the state’s commitment to protecting and ensuring the health and perseverance of its waterways and the Long Island Sound Watershed.
" 'Supporting the planning, engineering and design needed to move this project toward construction will help advance future improvements to #StreamConnectivity, aquatic habitat and #FloodResilience,' Dykes said.
"The funding was made available to DEEP through the U.S. Environmental Protection Agency’s Long Island Sound Partnership National Estuary Program."
#SolarPunkSunday #RestoreFloodplains #BuildingForResiliency #FloodplainReclamation #Connecticut #DamRemoval #Floodplain #Watersheds #RiverRestoration
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#WaterburyCT receives $339K DEEP grant for #RisdonDam removal project
By Dalton Zbierski, 7/4/2026
"A vision in Waterbury is en route to becoming reality, as the city received a grant from the state this week to help kickstart the Risdon #DamRemoval Project on South Main Street.
"The $339,000 Long Island Sound Ecosystems Grant from the Connecticut Department of Energy and Environmental Protection will fund an important early stage of the project to remove the aging Risdon Dam.
"The grant will cover the environmental investigation, engineering design and permitting required for the removal of the dam, which is located behind the former factory at 2100 South Main St.
"A release this week from the city announced the award from DEEP and explained the purpose of the project.
"Removing the dam will restore the natural flow of #HopevillePondBrook, a tributary of the #NaugatuckRiver within the #LongIslandSound #watershed.
"The project aims to improve #AquaticHabitat, reconnect #StreamCorridors, reduce #FloodRisk and eliminate a deteriorating structure that poses safety risks for nearby properties and infrastructure, according to city officials.
"It will take approximately one year to complete the planning, design and permitting phase. Then, the construction will move on to bidding.
"On Wednesday, Waterbury Mayor Paul Pernerewski, Jr. said the grant represents another significant investment in the city’s infrastructure and #EnvironmentalStewardship.
" 'Removing the Risdon Dam will improve the health of Hopeville Pond Brook, reduce flood risks and help restore a more resilient #ecosystem for #FutureGenerations,' Pernerewski said.
"The mayor also thanked #DEEP for its support and collaboration in helping the project move forward.
"DEEP Commissioner #KatieDykes, who will be leaving her position this month, said the project marks the state’s commitment to protecting and ensuring the health and perseverance of its waterways and the Long Island Sound Watershed.
" 'Supporting the planning, engineering and design needed to move this project toward construction will help advance future improvements to #StreamConnectivity, aquatic habitat and #FloodResilience,' Dykes said.
"The funding was made available to DEEP through the U.S. Environmental Protection Agency’s Long Island Sound Partnership National Estuary Program."
#SolarPunkSunday #RestoreFloodplains #BuildingForResiliency #FloodplainReclamation #Connecticut #DamRemoval #Floodplain #Watersheds #RiverRestoration
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#WaterburyCT receives $339K DEEP grant for #RisdonDam removal project
By Dalton Zbierski, 7/4/2026
"A vision in Waterbury is en route to becoming reality, as the city received a grant from the state this week to help kickstart the Risdon #DamRemoval Project on South Main Street.
"The $339,000 Long Island Sound Ecosystems Grant from the Connecticut Department of Energy and Environmental Protection will fund an important early stage of the project to remove the aging Risdon Dam.
"The grant will cover the environmental investigation, engineering design and permitting required for the removal of the dam, which is located behind the former factory at 2100 South Main St.
"A release this week from the city announced the award from DEEP and explained the purpose of the project.
"Removing the dam will restore the natural flow of #HopevillePondBrook, a tributary of the #NaugatuckRiver within the #LongIslandSound #watershed.
"The project aims to improve #AquaticHabitat, reconnect #StreamCorridors, reduce #FloodRisk and eliminate a deteriorating structure that poses safety risks for nearby properties and infrastructure, according to city officials.
"It will take approximately one year to complete the planning, design and permitting phase. Then, the construction will move on to bidding.
"On Wednesday, Waterbury Mayor Paul Pernerewski, Jr. said the grant represents another significant investment in the city’s infrastructure and #EnvironmentalStewardship.
" 'Removing the Risdon Dam will improve the health of Hopeville Pond Brook, reduce flood risks and help restore a more resilient #ecosystem for #FutureGenerations,' Pernerewski said.
"The mayor also thanked #DEEP for its support and collaboration in helping the project move forward.
"DEEP Commissioner #KatieDykes, who will be leaving her position this month, said the project marks the state’s commitment to protecting and ensuring the health and perseverance of its waterways and the Long Island Sound Watershed.
" 'Supporting the planning, engineering and design needed to move this project toward construction will help advance future improvements to #StreamConnectivity, aquatic habitat and #FloodResilience,' Dykes said.
"The funding was made available to DEEP through the U.S. Environmental Protection Agency’s Long Island Sound Partnership National Estuary Program."
#SolarPunkSunday #RestoreFloodplains #BuildingForResiliency #FloodplainReclamation #Connecticut #DamRemoval #Floodplain #Watersheds #RiverRestoration
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#WaterburyCT receives $339K DEEP grant for #RisdonDam removal project
By Dalton Zbierski, 7/4/2026
"A vision in Waterbury is en route to becoming reality, as the city received a grant from the state this week to help kickstart the Risdon #DamRemoval Project on South Main Street.
"The $339,000 Long Island Sound Ecosystems Grant from the Connecticut Department of Energy and Environmental Protection will fund an important early stage of the project to remove the aging Risdon Dam.
"The grant will cover the environmental investigation, engineering design and permitting required for the removal of the dam, which is located behind the former factory at 2100 South Main St.
"A release this week from the city announced the award from DEEP and explained the purpose of the project.
"Removing the dam will restore the natural flow of #HopevillePondBrook, a tributary of the #NaugatuckRiver within the #LongIslandSound #watershed.
"The project aims to improve #AquaticHabitat, reconnect #StreamCorridors, reduce #FloodRisk and eliminate a deteriorating structure that poses safety risks for nearby properties and infrastructure, according to city officials.
"It will take approximately one year to complete the planning, design and permitting phase. Then, the construction will move on to bidding.
"On Wednesday, Waterbury Mayor Paul Pernerewski, Jr. said the grant represents another significant investment in the city’s infrastructure and #EnvironmentalStewardship.
" 'Removing the Risdon Dam will improve the health of Hopeville Pond Brook, reduce flood risks and help restore a more resilient #ecosystem for #FutureGenerations,' Pernerewski said.
"The mayor also thanked #DEEP for its support and collaboration in helping the project move forward.
"DEEP Commissioner #KatieDykes, who will be leaving her position this month, said the project marks the state’s commitment to protecting and ensuring the health and perseverance of its waterways and the Long Island Sound Watershed.
" 'Supporting the planning, engineering and design needed to move this project toward construction will help advance future improvements to #StreamConnectivity, aquatic habitat and #FloodResilience,' Dykes said.
"The funding was made available to DEEP through the U.S. Environmental Protection Agency’s Long Island Sound Partnership National Estuary Program."
#SolarPunkSunday #RestoreFloodplains #BuildingForResiliency #FloodplainReclamation #Connecticut #DamRemoval #Floodplain #Watersheds #RiverRestoration
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#WaterburyCT receives $339K DEEP grant for #RisdonDam removal project
By Dalton Zbierski, 7/4/2026
"A vision in Waterbury is en route to becoming reality, as the city received a grant from the state this week to help kickstart the Risdon #DamRemoval Project on South Main Street.
"The $339,000 Long Island Sound Ecosystems Grant from the Connecticut Department of Energy and Environmental Protection will fund an important early stage of the project to remove the aging Risdon Dam.
"The grant will cover the environmental investigation, engineering design and permitting required for the removal of the dam, which is located behind the former factory at 2100 South Main St.
"A release this week from the city announced the award from DEEP and explained the purpose of the project.
"Removing the dam will restore the natural flow of #HopevillePondBrook, a tributary of the #NaugatuckRiver within the #LongIslandSound #watershed.
"The project aims to improve #AquaticHabitat, reconnect #StreamCorridors, reduce #FloodRisk and eliminate a deteriorating structure that poses safety risks for nearby properties and infrastructure, according to city officials.
"It will take approximately one year to complete the planning, design and permitting phase. Then, the construction will move on to bidding.
"On Wednesday, Waterbury Mayor Paul Pernerewski, Jr. said the grant represents another significant investment in the city’s infrastructure and #EnvironmentalStewardship.
" 'Removing the Risdon Dam will improve the health of Hopeville Pond Brook, reduce flood risks and help restore a more resilient #ecosystem for #FutureGenerations,' Pernerewski said.
"The mayor also thanked #DEEP for its support and collaboration in helping the project move forward.
"DEEP Commissioner #KatieDykes, who will be leaving her position this month, said the project marks the state’s commitment to protecting and ensuring the health and perseverance of its waterways and the Long Island Sound Watershed.
" 'Supporting the planning, engineering and design needed to move this project toward construction will help advance future improvements to #StreamConnectivity, aquatic habitat and #FloodResilience,' Dykes said.
"The funding was made available to DEEP through the U.S. Environmental Protection Agency’s Long Island Sound Partnership National Estuary Program."
#SolarPunkSunday #RestoreFloodplains #BuildingForResiliency #FloodplainReclamation #Connecticut #DamRemoval #Floodplain #Watersheds #RiverRestoration
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Canada’s National Elevation Data Strategy Update, November 2023
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https://gogeomatics.ca/canadas-national-elevation-data-strategy-update-november-2023/ <-- shared article
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https://open.canada.ca/data/en/dataset/957782bf-847c-4644-a757-e383c0057995 <-- HRDEM home page
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https://natural-resources.canada.ca/science-and-data/science-and-research/natural-hazards/flood-hazard-identification-and-mapping-program/24044 <-- FHIMP home page
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#GIS #spatial #identification #mapping #Canada #airborne #topobathy #CCMEO #CHN #FHIMP #floodhazard #GeoAI #HRDEM #LiDAR #PointCloud #elevation #data #NationalHydroNetwork #NHN #flood #hazard #risk #floodrisk #3d #3ddata #funding #program #appliedscience #flooding #water #hydrology #hydrospatial #opendata #NRCan #province #terrority #model #modeling
@NRCan -
⚡️ 220 homes in Sainte-Brigitte-de-Laval, near Quebec City, were evacuated due to heavy rain and rising water levels, with authorities fearing potential flooding. The area experienced 70mm of rain in a short period, causing a local river to rapidly rise. Other regions in southern and central Quebec are also being monitored for potential floods and landslides. #EmergencyEvacuation #FloodRisk #Quebec https://www.riskmap.com/incidents/1852838/articles/183586997/?utm_source=dlvr.it&utm_medium=mastodon
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⚡️ 220 homes in Sainte-Brigitte-de-Laval, near Quebec City, were evacuated due to heavy rain and rising water levels, with authorities fearing potential flooding. The area experienced 70mm of rain in a short period, causing a local river to rapidly rise. Other regions in southern and central Quebec are also being monitored for potential floods and landslides. #EmergencyEvacuation #FloodRisk #Quebec https://www.riskmap.com/incidents/1852838/articles/183586997/?utm_source=dlvr.it&utm_medium=mastodon
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Knock Knock #ClimateCrisis is Real #Unpriced #climaterisk and the potential consequences of #overvaluation in US #HousingMarket #FinancialStability #flooding #HomeEquity We find that #ResidentialProperties exposed to #FloodRisk are #overvalued by US$121–US$237 billion, depending on the discount rate. https://www.nature.com/articles/s41558-023-01594-8.pdf
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Assessing and Mitigating Ice-Jam #Flood Hazards and Risks: A European Perspective
https://www.mdpi.com/2073-4441/15/1/76
It would certainly be interesting to organize a similar workshop in #Canada, with a lot of work on-going in #icejam #modeling, both from a #floodhazard and #floodrisk perspective
#hydrology #hydraulic #floodmapping #winter #ice #river #risk #FHIMP #NRCan #ECCC