#geostatistics — Public Fediverse posts

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

Using Geospatial Analysis and Explainable Machine Learning to Examine Risk Factors of Out-of-Hospital Cardiac Arrest Survival Outcome
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https://openscholar.uga.edu/record/26998/files/Zhang_uga_0077E_16145.pdf <-- shared technical publication / dissertation
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https://www.aag.org/award-grant/william-l-garrison-award-for-best-dissertation-in-computational-geography/ <-- shared @AAG William L. Garrison Award for Best Dissertation in Computational Geography
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[again, way outside any expertise I might have, but fascinating spatial analysis use case…]
H/T @Jielu Zhang | Postdoctoral Researcher @ Harvard University
“[The authors] Ph.D. dissertation "Using Geospatial Analysis and Explainable Machine Learning to Examine Risk Factors of Out-of-Hospital Cardiac Arrest Survival Outcome" [1st link above] has received the 2026 biennial William L. Garrison Award for Best Dissertation in Computational Geography from the American Association of Geographers… [2nd link above.]
In [their] research, [they] develop[ed] Explainable GeoAI and Causal GeoAI methods that combine geographic data and artificial intelligence to expose and ameliorate health disparities by delivering models that not only predict risks but also illuminate how and where to intervene. While [their] dissertation focused on cardiovascular disease, these approaches are broadly applicable to public health, medicine, urban planning, environmental exposure, and resilience research…”
#explainable #causal #AI #model #modeling #PublicHealth #GIS #spatial #mapping #spatialanalysis #spatiotemporal #AAG2026 #AAG #Award #geostatistics #Georgia #health #risk #hazard #cardiacarrest #cardiovacscular #usecase #metrics #midocine #urbanplanning #resilience #survival #OutofHospital #PhD #Dissertation #CardiacArrest #AutomatedExternalDefibrillator #SpatialOptimization #GeographicallyExplainableArtificialIntelligence #GeoAI #GeoXAI #SpatiallyAwareCausalInference #OverlayedSpatioTemporalOptimization #healthcare #medical #intervention #GIS #spatial #mappingt #spatialanalysis #spatiotemporal #heart #heartattack #AED #survival #survivaloutcomes #machinelearning #AI #publichealth #healthgeographers #counterfactual #explainable #deeplearning #model #modeling

Interpreting Hydrogeochemical Interactions And Controlling Processes In Groundwater Using Advanced Statistical Techniques In The Southeast Asian Megacity - Dhaka, Bangladesh
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https://doi.org/10.1016/j.clwat.2025.100084 <-- shared paper
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#GIS #spatial #mapping #spatialanalysis #spatiotemporal #Hydrogeochemistry #Groundwater #Quality #Statistics #geostatistics #Analysis #Irrigation #suitability #water #hydrology #waterresources #statistics geostatistics #waterquality #model #modeling #potable #drinkingwater #urbanisation #city #growth #population #stress #planning #management #industrial #residential #geochemical #testing # Dhaka #Bangladesh #pumping #overpumping #drinking #irrigation #regional #WQI #multivariate #monitoring #contamination #pollution #assessment #watersecurity

A New, Rigorous Assessment Of Remote Sensing Tool's Accuracy For Supporting Satellite-Based Water Management [NASA's OpenET]
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https://phys.org/news/2024-01-rigorous-remote-tool-accuracy-satellite.html <-- shared technical article
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https://doi.org/10.1038/s44221-023-00181-7 <-- shared paper
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https://www.nasa.gov/image-article/openet-satellite-based-water-data-resource/ <-- NASA OpenET satellite-based water data home page
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https://youtu.be/uAapAAInDpQ?si=njJfqvrtZ1MWR3CQ <-- NASA OpenET overview video
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#GIS #spatial #mapping #water #waterresources #hydrology #watersecurity #OpenET #remotesensing #model #modeling #satellite #watermanagement #statistics #geostatistics #opendata #arid #sustainable #landsat #evapotranspiration #ET #corrleation #watermanagement #soil #plant #crops #cropland #agriculture #farming #wheat #corn #soy #rice #waterconservation #watersustainability #watersupply #NASA
@nasa