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A copula-based sensitivity analysis method and its application to a North Sea sediment transport model

Matei Ţene, Dana E. Stuparu, Dorota Kurowicka, Ghada Y. El Serafy
2018 Environmental Modelling & Software  
This paper describes a novel sensitivity analysis method, able to handle dependency relationships between model parameters.  ...  Delft3D-WAQ (Deltares, 2010) is a sediment transport model with strong correlations between input parameters.  ...  Acknowledgements The authors would like to acknowledge Deltares for their openness in providing access to the Delft 3D-WAQ sediment transport model and their approval and technical support for the simulations  ... 
doi:10.1016/j.envsoft.2018.03.002 fatcat:r2la4ybi3zdhthasjqefglaqz4

A Copula-Based Simulation of Wave-Induced Pore Water Pressure Gradient and Local Acceleration Within Surf Zone for Natural and Laboratory Barred Beach Profiles

Mohammad Tabasi, Takayuki Suzuki, Daniel T. Cox
2022 Frontiers in Built Environment  
Herein, a copula-based simulation is presented for modeling multivariate parameters and maintaining their statistical characteristics within the surf zone.  ...  Therefore, to provide a reliable and realistic hydrodynamic and morphodynamic simulation, the dependencies among different parameters, such as water level, pressure gradient, local acceleration, and sediment  ...  As a result of these fluid motions and the resulting sediment suspension and transport, the morphology of the nearshore can change rapidly.  ... 
doi:10.3389/fbuil.2022.816020 fatcat:2q2khoi5w5f3hm4qddpah2iuri

A Climate Index Optimized for Longshore Sediment Transport Reveals Interannual and Multidecadal Littoral Cell Rotations

Dylan Anderson, Peter Ruggiero, José A. A. Antolínez, Fernando J. Méndez, Jonathan Allan
2018 Journal of Geophysical Research - Earth Surface  
We have developed a technique to directly relate weather patterns to coastal change resulting from the transport of sediment along beaches and applied the method to investigate shoreline change trends  ...  A climate INdex was optimized to capture variability in longshore wave power as a proxy for potential LOngshore Sediment Transport (LOST_IN), and a procedure was developed to simulate many realizations  ...  Sophisticated process-based 3-D sediment transport modeling for shoreline prediction is still impractical at timescales of a year or more due to computational costs and the accumulation of numerical errors  ... 
doi:10.1029/2018jf004689 fatcat:ciwe2bofa5ckbmgdza55s52pfy

Predicting dominance of sand transport by waves, tides and their interactions on sandy continental shelves

E. V. King, D. C. Conley, G. Masselink, N. Leonardi
2021 Journal of Geophysical Research - Oceans  
This approach efficiently indicates where simple noninteractive wave and tide processes may be sufficient for modeling sediment transport, and enables efficient interregional comparisons and sensitivity  ...  Plain Language Summary The transport of sand across the marine environment is important to understand, as it influences the fate of sediments, pollutants, and can affect seabed habitats.  ...  The authors acknowledge the MET Office (Andy Saulter) for the hydrodynamic, bathymetric, and wave forcing data and NOAA for atmospheric pressure and wind data, and EMODnet bathymetry Consortium for the  ... 
doi:10.1029/2021jc017200 fatcat:lfe74m4n4fgtrmgbx7uqqvex5u

Assessing Flood Risk Under Sea Level Rise and Extreme Sea Levels Scenarios: Application to the Ebro Delta (Spain)

J. M. Sayol, M. Marcos
2018 Journal of Geophysical Research - Oceans  
Assessing flood risk under sea level rise and extreme sea levels scenarios. application to the Ebro Delta (Spain).  ...  Finally, offshore sea level projections from extreme events superimposed to mean sea level have been propagated onto a high resolution digital elevation model of the study region in order to construct  ...  It is the necessary input, for example, to apply state-of-the-art complex sediment transport models to quantify sediment budget or to investigate changes in the land-use as well as modification in habitats  ... 
doi:10.1002/2017jc013355 fatcat:nfsgi756kvegbnmol62zzpkpiq

Behavioural and oceanographic isolation of an island-based jellyfish (Copula sivickisi, Class Cubozoa) population

Jodie A. Schlaefer, Eric Wolanski, Jonathan Lambrechts, Michael J. Kingsford
2021 Scientific Reports  
Biophysical modelling was used to investigate the spatial scales of connectivity in a C. sivickisi population.  ...  Medusae of the cubozoan Copula sivickisi can uniquely attach to surfaces with the sticky pads on their bells.  ...  degree completed at James Cook University in 2018) and used to inform the biophysical model.  ... 
doi:10.1038/s41598-021-89755-7 pmid:33986430 fatcat:3fqesbw6abenpatorxwa3zbt5y

Monitoring Cliff Erosion with LiDAR Surveys and Bayesian Network-based Data Analysis

Paweł Terefenko, Dominik Paprotny, Andrzej Giza, Oswaldo Morales-Nápoles, Adam Kubicki, Szymon Walczakiewicz
2019 Remote Sensing  
Wind, waves, sea levels, and precipitation were shown to have different impacts on each part of the coastal profile.  ...  In this study, three soft-cliff systems in the southern Baltic Sea were monitored with the use of terrestrial laser scanner technology over a period of almost two years to generate a time series of thirteen  ...  Materials and Methods Study Sites The cliff retreat analysis was performed for a non-tidal basin of the Baltic Sea ( Figure 1 ).  ... 
doi:10.3390/rs11070843 fatcat:in4sm3kenja4rjtjtbnloxa7iq

A Statistical Simulation Method for Joint Time Series of Non-stationary Hourly Wave Parameters [article]

Wiebke S. Jäger, Thomas Nagler, Claudia Czado, Robert T. McCall
2018 arXiv   pre-print
The method was developed for and applied to a data set in the Southern North Sea. For this site, the method could simulate time series with realistic annual cycles and inter-annual variability.  ...  The method rests on several model components which include renewal processes, Fourier series with random coefficients, ARMA processes, copulas and regime-switching.  ...  and by the Technical University of Munich through the Global Challenges for Women in Math Science award.  ... 
arXiv:1810.12389v1 fatcat:kdiyftgcnnczdhgyf3mv7bo6hm

Coastal Flooding Hazard Due to Overflow Using a Level II Method: Application to the Venetian Littoral

Chiara Favaretto, Luca Martinelli, Piero Ruol
2019 Water  
The procedure was applied to two stretches of the Venetian littoral, i.e., Valle Vecchia and Caorle, located in the northern Adriatic Sea.  ...  In recent years, marine flooding and its impacts have become a question of growing interest, since coastal areas are the most heavily populated and developed land zones in the world.  ...  The long-shore sediment transport, coming from the northern cell (VE1) is equal to ∼50,000 m 3 /year.  ... 
doi:10.3390/w11010134 fatcat:53kdz6lc2jftbh5jmmtjsyqx3q

The Impact of Waves and Tides on Residual Sand Transport on a Sediment-poor, Energetic and Macrotidal Continental Shelf

E.V. King, D.C. Conley, G. Masselink, N. Leonardi, R.J. McCarroll, T. Scott
2019 Journal of Geophysical Research - Oceans  
hydrodynamic, wave, and sediment transport model.  ...  Residual currents and sediment transport patterns are important for the transport and distribution of littoral and shelf-sea sediments, morphological evolution of the coastal and inner continental shelf  ...  Acknowledgments We acknowledge the UK Hydrographic Office for the VORF corrections and single-beam bathymetry. High-  ... 
doi:10.1029/2018jc014861 fatcat:6yhehtgjgrbqjjl5gtlphevlri

Wave, Tide and Topographical Controls on Headland Sand Bypassing

E. V. King, D. C. Conley, G. Masselink, N. Leonardi, R. J. McCarroll, T. Scott, N. G. Valiente
2021 Journal of Geophysical Research - Oceans  
Bypassing can be predicted for realistic morphology and sand coverage; key parameters are headland extent, surf zone width and toe depth. 3.  ...  Tides are a secondary control on bypassing rate under energetic waves. Wave-current interactions can dominate bypassing for median waves.  ...  Methods Numerical model The process-based numerical model Delft 3D was used to model the North Coast (Figure 1 ).  ... 
doi:10.1029/2020jc017053 fatcat:o2gq5bw7mjdlthmaeqhxn5cbju

Hydro-meteorological risk assessment methods and management by nature-based solutions

Jeetendra Sahani, Prashant Kumar, Sisay Debele, Christos Spyrou, Michael Loupis, Leonardo Aragão, Federico Porcù, Mohammad Aminur Rahman Shah, Silvana Di Sabatino
2019 Zenodo  
To execute HMR management by risk assessment, many models and tools, ranging from conceptual to sophisticated/numerical methods are currently in use.  ...  This paper discusses various methods used for HMR assessment and its management via potential nature-based solutions (NBS), which are actually lessons learnt from nature.  ...  It was funded by and carried out within the framework of OPERANDUM (OPEn-air laboRAtories for Nature baseD solUtions to Manage hydro-meteo risks) project (Grant no. 776848).  ... 
doi:10.5281/zenodo.3902806 fatcat:6xguyb7wovahpfm34sznovdo2q

INCORPORATING A RISK ASSESSMENT PROCEDURE INTO SUBMARINE OUTFALL PROJECTS AND APPLICATION TO PORTUGUESE CASE STUDIES

Ana Santos Mendonça, M. A. Losada, S. Solari, M. Neves, M. Reis
2012 Coastal Engineering Proceedings  
and prediction of the plume long-term behaviour near the coastline.  ...  The paper presents a risk assessment methodology for operational limit states of submarine outfall projects that considers: the environmental legislative framework, the climate agents acting on the coastline  ...  ACKNOWLEDGMENTS The writers wish to thank the financial sponsorship of Ana Mendonça by Fundação para a Ciência e a Tecnologia, Portugal, through her PhD grant SFRH / BD / 60748 / 2009.  ... 
doi:10.9753/icce.v33.management.18 fatcat:lzzmnykzwjdgdhlrxeglxkyk6a

Joint Modelling of Flood Hydrograph Peak, Volume and Duration Using Copulas—Case Study of Sava and Drava River in Croatia, Europe

Martina Lacko, Kristina Potočki, Kristina Ana Škreb, Nejc Bezak
2022 Water  
The results indicate that bivariate frequency analysis can be very sensitive to the selected baseflow separation methodology.  ...  This can lead to scouring of the riverbed around the bridge substructure and consequently reduces its overall stability.  ...  The authors would like to thank the Croatian Meteorological and Hydrological Service that provided data and useful information for this research.  ... 
doi:10.3390/w14162481 fatcat:mpczxz5745df7bcnjenpp7qa2m

An integrated model system for coastal flood prediction with a case history for Walcott, UK, on 9 November 2007

P. Stansby, N. Chini, D. Apsley, A. Borthwick, L. Bricheno, J. Horrillo-Caraballo, M. McCabe, D. Reeve, B.D. Rogers, A. Saulter, A. Scott, C. Wilson (+2 others)
2012 Journal of Flood Risk Management  
An integrated model system is based on downscaling from climate models, to wave climate and continental shelf models for tides and surge, to coastal models for waves and water levels, to beach levels and  ...  Extreme joint probability analysis is undertaken, showing the event to be close to a 1 in 100-year event.  ...  This method did not conserve mass and was abandoned. It would appear that TELEMAC requires subcritical inflow conditions for such applications.  ... 
doi:10.1111/jfr3.12001 fatcat:iu3lj5soxbbehouv76x2447riu
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