Surface Formations Salinity Survey in an Estuarine Area of Northern Morocco, by Crossing Satellite Imagery, Discriminant Analysis, and Machine Learning DOI Creative Commons
Youssouf El Jarjini, Moad Morarech, Vincent Vallès

et al.

Soil Systems, Journal Year: 2023, Volume and Issue: 7(2), P. 33 - 33

Published: April 8, 2023

The salinity of estuarine areas in arid or semi-arid environments can reach high values, conditioning the distribution vegetation and soil surface characteristics. While many studies focused on prediction as a function numerous parameters, few attempted to explain role its within profile pattern landscape units. In wadi estuary northern Morocco, units derived from satellite imagery naturalistic environmental analysis are compared with systematic survey by means apparent electrical conductivity (Eca) measurements. comparison is based allocation measurement points an area Eca measurements alone, using linear discriminant four machine learning methods. results show that between 57 66% well-classified, highlighting major factor discrimination zones. mainly result interaction capillary rise flooding tides wadi. location misclassified analysed discussed, well possible causes confusions.

Language: Английский

Wind and rain compound with tides to cause frequent and unexpected coastal floods DOI Creative Commons
Thomas Thelen, Katherine Anarde,

Joel Dietrich

et al.

EarthArXiv (California Digital Library), Journal Year: 2024, Volume and Issue: unknown

Published: June 12, 2024

With sea-level rise, flooding in coastal communities is now common during the highest high tides. Floods also occur at normal tidal levels when rainfall overcomes stormwater infrastructure that partially submerged by Data describing this type of compound scarce and, therefore, it unclear how often these floods and whether there are other non-tidal factors contribute to flooding. We combine measurements on roads within storm drains with a numerical model examine processes Carolina Beach, NC, USA – community chronically outside extreme storms despite flood mitigation combat Of 43 non-storm we measured year-long study period, one-third were unexpected because forecasted tide was below their monitoring threshold. introduce novel coupling between an ocean-scale hydrodynamic (ADCIRC) community-scale surface water pipe flow (3Di) quantify contributions from multiple drivers. find setup sustained (non-storm) winds modulates extents depth: wind causes deeper, longer, more extensive tides can cause days would not have occurred due alone. Rainfall contributes floods; submerge outfalls daily basis, even minor rainstorms lead as runoff has nowhere drain. As particularly low-lying community, Beach provides glimpse into future challenges worldwide will face predicting, preparing for, adapting increasingly frequent compounding drivers atop rise.

Language: Английский

Citations

0
A Link Between U.S. East Coast Sea Level and North Atlantic Subtropical Ocean Heat Content DOI Open Access
Jacob M. Steinberg, Stephen M. Griffies, John P. Krasting

et al.

Authorea (Authorea), Journal Year: 2024, Volume and Issue: unknown

Published: June 13, 2024

Using a recently developed 1/12th degree regional ocean model, we establish link between U.S. East Coast sea level variability and offshore upper-ocean heat content change. This manifests as cross-shore mass redistribution driven by an thermosteric response to subsurface warming or cooling. Approximately 50\% of simulated monthly inter-annual coastal variance south Cape Hatteras can be statistically accounted for this mechanism, realized function hypsometry, gyre scale warming, the depth-dependence density explains non-stationarity coast covariance, specifically observed modeled behavior after $\sim$ 2010. Since approximately 2010, elevated rates rise partly explained result shore-ward due sub-surface within North Atlantic subtropical gyre. These results reveal mechanism that connects local broader region identifies influence changes on level. analysis presents framework identifying new regions may susceptible enhanced helps bridge gap quantifying large change anticipating impacts like flooding storm surge.

Language: Английский

Citations

0
Wind and rain compound with tides to cause frequent and unexpected coastal floods DOI Creative Commons
Thomas Thelen, Katherine Anarde, J. C. Dietrich

et al.

Water Research, Journal Year: 2024, Volume and Issue: 266, P. 122339 - 122339

Published: Aug. 28, 2024

With sea-level rise, flooding in coastal communities is now common during the highest high tides. Floods also occur at normal tidal levels when rainfall overcomes stormwater infrastructure that partially submerged by Data describing this type of compound scarce and, therefore, it unclear how often these floods and extent to which non-tidal factors contribute flooding. We combine measurements on roads within storm drains with a numerical model examine processes Carolina Beach, NC, USA - community chronically outside extreme storms despite flood mitigation combat Of 43 non-storm we measured year-long study period, one-third were unexpected based threshold used for monitoring. introduce novel coupling between an ocean-scale hydrodynamic (ADCIRC) community-scale surface water pipe flow (3Di) quantify contributions from multiple drivers. Accounting compounding effects tides, wind, rain increases up 0.4 m compared simulations include only Setup sustained (non-storm) regional winds causes deeper, longer, more extensive tides can cause days would not have occurred due alone. Rainfall contributes floods; because submerge outfalls daily basis, even minor rainstorms lead as runoff has nowhere drain. As particularly low-lying community, Beach provides glimpse into future challenges worldwide will face predicting, preparing for, adapting increasingly frequent drivers atop rise.

Language: Английский

Citations

0
Eastern Australian estuaries will transition to tidal flood regimes in coming decades DOI Creative Commons
Ben S. Hague, Mandi C. Thran,

Doerte Jakob

et al.

Cambridge Prisms Coastal Futures, Journal Year: 2024, Volume and Issue: 2

Published: Jan. 1, 2024

Abstract Tidal flooding occurs when coastal water levels exceed impact-based flood thresholds due to tides alone, under average weather conditions. Transitions tidal regimes are already underway for nuisance severities in harbours and bays expected higher coming decades. In the first such regional assessment, we show that same transition tidally forced floods can also be occur Australian estuaries with less than 0.1 m further sea-level rise. Flood historically used only exceeded combined effects of riverine (freshwater) (salt water) influences will then high alone. Once this emerges, it is projected become chronic within two Locations most at-risk emergence subsequent establishment those just inside estuary entrances. These locations exemplified by low freeboard, vertical distance between a threshold typical tide level. We use freeboard-based analysis estimate rise required impacts associated official The resultant tide-only frequency estimates provide lower bound future rates.

Language: Английский

Citations

0
A Link Between U.S. East Coast Sea Level and North Atlantic Subtropical Ocean Heat Content DOI Creative Commons
Jacob M. Steinberg, Stephen M. Griffies, John P. Krasting

et al.

Journal of Geophysical Research Oceans, Journal Year: 2024, Volume and Issue: 129(12)

Published: Dec. 1, 2024

Abstract Using a recently developed 1/12th degree regional ocean model, we establish link between U.S. East Coast sea level variability and offshore upper heat content change. This manifests as cross‐shore mass redistribution driven by an thermosteric response to subsurface warming or cooling. Approximately 50% of simulated monthly interannual coastal variance south Cape Hatteras can be statistically accounted for this mechanism, realized function hypsometry, gyre scale warming, the depth dependence density explains nonstationarity covariance, specifically observed modeled behavior after 2010. Since approximately 2010, elevated rates rise partly explained result shoreward due within North Atlantic subtropical gyre. These results reveal mechanism that connects local broader region identifies influence changes on level. analysis presents framework identifying new regions may susceptible enhanced helps bridge gap quantifying large change anticipating impacts make flooding storm surge more acutely damaging.

Language: Английский

Citations

0
Marine ecological information prediction by using adjacent location spatiotemporal deep learning model with ensemble learning techniques DOI Creative Commons
Yue‐Shan Chang, Shuting Huang, Haobijam Basanta

et al.

Ecological Informatics, Journal Year: 2024, Volume and Issue: unknown, P. 102964 - 102964

Published: Dec. 1, 2024

Language: Английский

Citations

0
Surface Formations Salinity Survey in an Estuarine Area of Northern Morocco, by Crossing Satellite Imagery, Discriminant Analysis, and Machine Learning DOI Creative Commons
Youssouf El Jarjini, Moad Morarech, Vincent Vallès

et al.

Soil Systems, Journal Year: 2023, Volume and Issue: 7(2), P. 33 - 33

Published: April 8, 2023

The salinity of estuarine areas in arid or semi-arid environments can reach high values, conditioning the distribution vegetation and soil surface characteristics. While many studies focused on prediction as a function numerous parameters, few attempted to explain role its within profile pattern landscape units. In wadi estuary northern Morocco, units derived from satellite imagery naturalistic environmental analysis are compared with systematic survey by means apparent electrical conductivity (Eca) measurements. comparison is based allocation measurement points an area Eca measurements alone, using linear discriminant four machine learning methods. results show that between 57 66% well-classified, highlighting major factor discrimination zones. mainly result interaction capillary rise flooding tides wadi. location misclassified analysed discussed, well possible causes confusions.

Language: Английский

Citations

0