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#coastal — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #coastal, aggregated by home.social.

  1. Improved Tidal Analysis Datum Calculator [NOAA, USA]
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    tidesandcurrents.noaa.gov/news <-- shared technical article
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    access.co-ops.nos.noaa.gov/dat <-- shared ‘Tidal Analysis Datum Calculator’ online tool
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    tidesandcurrents.noaa.gov/map/ <-- shared Interactive Map to Locate Control Stations
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    access.co-ops.nos.noaa.gov/dat <-- shared user guide
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    access.co-ops.nos.noaa.gov/dat <-- shared technical report
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    tidesandcurrents.noaa.gov/datu <-- shared details of the National Tidal Datum Epoch
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    H/T @NOAA National Ocean Service
    “NOAA has upgraded its tidal datum calculation tool with new integrated features! [links above] Did you know you can use this resource to perform your own tidal datum computations and understand local flood frequency?
    The Tidal Datum Analysis Calculator is available now for users to input their data to help make informed decisions on tidal flooding, coastal inundation, and other critical coastal issues.
    With the National Tidal Datum Epoch release rescheduled for 2029, this tool serves as a resource for stakeholders to analyze and understand water level data in their areas of interest by calculating preliminary datums relative to the new epoch…”

    @NOAA @NOAA National Ocean Service

  2. Improved Tidal Analysis Datum Calculator [NOAA, USA]
    --
    tidesandcurrents.noaa.gov/news <-- shared technical article
    --
    access.co-ops.nos.noaa.gov/dat <-- shared ‘Tidal Analysis Datum Calculator’ online tool
    --
    tidesandcurrents.noaa.gov/map/ <-- shared Interactive Map to Locate Control Stations
    --
    access.co-ops.nos.noaa.gov/dat <-- shared user guide
    --
    access.co-ops.nos.noaa.gov/dat <-- shared technical report
    --
    tidesandcurrents.noaa.gov/datu <-- shared details of the National Tidal Datum Epoch
    --
    H/T @NOAA National Ocean Service
    “NOAA has upgraded its tidal datum calculation tool with new integrated features! [links above] Did you know you can use this resource to perform your own tidal datum computations and understand local flood frequency?
    The Tidal Datum Analysis Calculator is available now for users to input their data to help make informed decisions on tidal flooding, coastal inundation, and other critical coastal issues.
    With the National Tidal Datum Epoch release rescheduled for 2029, this tool serves as a resource for stakeholders to analyze and understand water level data in their areas of interest by calculating preliminary datums relative to the new epoch…”
    #tidal #datum #calculation #tool #NOAA #TidalAnalysisDatumCalculator #TADC #fedscience #fedservice #opendata #usecase #flood #flooding #coast #coastal #inundation #NationalTidalDatumEpoch #waterlevel #spatialanalysis #mapping #spatial #spatiotemporal #vertical #USA #MSL #MHW #MLW
    @NOAA @NOAA National Ocean Service

  3. CW: Study suggests potential health implications of sea spray in coastal areas

    “Living near the ocean, particularly within 5 km, is increasingly linked to public health benefits.

    The air in coastal environments is enriched with sea spray aerosols (SSA) that are generated by wave action and bubble bursting …

    This study provided the first in vitro evidence of potential health benefits caused by SSA and the molecular mechanisms involved.”
    #Coastal #Health #Bacteria #Endotoxins
    sciencedirect.com/science/arti

  4. Impact Of Floods On Surface Water Quality - A Systematic Review And Comprehensive Assessment
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    doi.org/10.1016/j.jhydrol.2026 <-- shared paper
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    epa.gov/system/files/documents <-- 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

  5. Sea Levels Rising Dramatically In Some Areas Due To Land Subsidence [global]
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    phys.org/news/2026-05-sea-area <-- shared technical article
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    doi.org/10.1038/s41467-026-722 <-- shared paper
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    [#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, doi.org/10.1038/s41561-023-013, 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

  6. Extreme Coastal Flood [and SLR] Maps For Aotearoa New Zealand
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    niwa.co.nz/hazards/coastal-haz <-- shared Earth Sciences New Zealand entry page
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    experience.arcgis.com/experien <-- NIWA sea level / coastal flooding web mapping tools
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    niwa.co.nz/hazards/riskscape-s <-- shared NZ RiskScape software entry page
    --niwa.co.nz/sites/default/files <-- shared 2023 #NIWA report, ‘Mapping New Zealand’s exposure to coastal flooding and sea-level rise’
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    niwa.co.nz/hazards/coastal-sto <-- shared NIWA Coastal storm inundation page
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    #GIS #spatial #mapping #NewZealand #spatialdata #opendata #water #hydrography #coast #coastal #flood #flooding #inundation #stormsurge #risk #hazard #forecasting #infrastructure #cost #damage #housing #climatechange #storm #extremeweather #tide #inundation #waves #sealevelrise #SLR #model #modeling #spatialanalysis #spatiotemporal #floodmap #remotesensing #LiDAR #SRTM #regional
    @earth Sciences New Zealand | National Institute of Water & Atmospheric Research (NIWA) | @Ministry for the Environment | Manatū mō te Taiao

  7. Assessment of Shoreline Change in Southeast Ireland Using Geospatial Techniques
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    doi.org/10.3390/su18073280 <-- shared paper
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    "... 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
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    #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

  8. "#Agricultural runoff provides perfect nutrients for #methanogen growth.

    #Fertilizer and animal waste washing into ocean systems creates nutrient-rich zones where these methanogens thrive like never before. #Nitrogen and #phosphorus pollution from farmland creates ideal conditions for explosive #microbial growth in #coastal waters and #DeepOcean areas. These agricultural inputs essentially act as fertilizer for #methane-producing microbes, creating a connection between #IndustrialFarming and atmospheric #GreenhouseGas levels that scientists never fully appreciated.

    "Coastal regions near major agricultural areas show the highest concentrations of these supercharged methanogens, with some areas recording methane production levels ten times higher than baseline measurements. The problem compounds itself because areas with intensive farming also tend to have the strongest ocean currents, meaning these fertilized methanogen populations get distributed globally. Every season’s #AgriculturalRunoff creates new opportunities for these microbes to establish thriving colonies in previously stable ocean environments."

    msn.com/en-us/weather/topstori

    #DeepSeaLife #AgriculturalRunoff #BigAg #OceansAreLife #OceanCurrents #OceanMethane

  9. Great #walk yesterday as we continued our #Fife #Coastal route (after a rather long pause). #Kingsbarns to St Andrews in glorious conditions (sunny, dry and not cold). Big waves over the sandstone reefs and plenty of sea birds.
    Rivers loudly in muddy #spate after rain of past days. Stopped near #Buddo rock for lunch. Investigated the tunnel bunker just beyond. Then Rock and Spindle before final to St Andrews and #Caffè #Bomboloni for welcome #coffee & #doughnuts.
    #StAndrews #Geology