"uuid","repository link","title","author","contributor","publication year","abstract","subject topic","language","publication type","publisher","isbn","issn","patent","patent status","bibliographic note","access restriction","embargo date","faculty","department","research group","programme","project","coordinates"
"uuid:51ee1355-eca1-46b1-8ec7-1164689e4593","http://resolver.tudelft.nl/uuid:51ee1355-eca1-46b1-8ec7-1164689e4593","How tides and waves enhance aeolian sediment transport at the sand motor mega-nourishment","Hoonhout, B.M. (TU Delft Coastal Engineering; Deltares); Luijendijk, Arjen (TU Delft Coastal Engineering; Deltares); Velhorst, R.L.C.; de Vries, S. (TU Delft Coastal Engineering); Roelvink, D. (IHE Delft Institute for Water Education)","Aagaard, T. (editor); Deigaard, R. (editor); Fuhrman, D. (editor)","2017","Expanding knowledge concerning the close entanglement between subtidal and subaerial processes in coastal environments initiated the development of the open-source Windsurf modeling framework that enables us to simulate
multi-fraction sediment transport due to subtidal and subaerial processes simultaneously. The Windsurf framework couples separate model cores for subtidal morphodynamics related to waves and currents and storms and aeolian
sediment transport. The Windsurf framework bridges three gaps in our ability to model long-term coastal morphodynamics: differences in time scales, land/water boundary and differences in meshes.
The Windsurf framework is applied to the Sand Motor mega-nourishment. The Sand Motor is virtually permanentlyexposed to tides, waves and wind and is consequently highly dynamic. In order to understand the complex
morphological behavior of the Sand Motor, it is vital to take both subtidal and subaerial processes into account. The ultimate aim of this study is to identify governing processes in aeolian sediment transport estimates in coastal environments and improve the accuracy of long-term coastal morphodynamic modeling.
At the Sand Motor beach armoring occurs on the dry beach. In contrast to the dry beach, no armor layer can be established in the intertidal zone due to periodic flooding. Consequently, during low tide non-armored intertidal beaches are susceptible for wind erosion and, although moist, may provide a larger aeolian sediment supply than the vast dry beach areas. Hence, subtidal processes significantly influence the subaerial morphology and both need to be accounted for to understand the long-term aeolian morphodynamic behavior of the Sand Motor.","hydrodynamics; sediment transport; morphodynamics; dunes and ecomorphology; numerical modelling; coasts and climate","en","conference paper","","","","","","","","","","","Coastal Engineering","","",""
"uuid:e964293a-f6e9-4ae1-ba51-a550e9ad3cc0","http://resolver.tudelft.nl/uuid:e964293a-f6e9-4ae1-ba51-a550e9ad3cc0","Response in the mekong deltaic coast to its changing sediment sources and sinks","Phan, M.H. (TU Delft Coastal Engineering; Vietnam Minsitry of Agriculture and Rural Development); Reniers, A.J.H.M. (TU Delft Environmental Fluid Mechanics); Ye, Qinghua (Deltares); Stive, M.J.F. (TU Delft Coastal Engineering)","Aagaard, T. (editor); Deigaard, R. (editor); Fuhrman, D. (editor)","2017","The coastal zone of Mekong delta is suffering under intense pressures from climate change as well as human intervention. Currently, the coastline evolution of Mekong delta is a complex combination of impacts due to (1) relative sea level rise i.e. the sum of eustatic sea level rise, natural and human induced subsidence (2) sediment transport rate changes at some sections due to change of wave condition by climate change (3) change of sediment sources from the Mekong estuaries by dam construction and sand mining and (4) mangrove degradation. A coastline monitoring is the basis to understand and manage coast. This study utilizes integrated techniques of remote sensing, geographic information system and statistics to monitor coastline change over the period of 1973 to 2015 from Landsat images of Multispectral (MSS), Thematic Mapper (TM), Enhanced Thematic Mapper Plus (ETM+), Operational Land Imager (OLI) at coastal area of Mekong delta. An advanced toolbox is developed for the work of atmospheric and radiometric correction of Landsat images as well as influence of tidal range is taken into account to obtain mean water level. Tasseled Cap and Normalized Difference Water Index (NDWI) algorithm is applied to separate land-water interface for extracting shorelines. Besides, a digital shoreline assessment system (DSAS) tool is used to analyze shoreline rate by statistic parameters as Shoreline Change Envelope (SCE), End Point Rate (EPR) and Linear Regression (LRR). Furthermore, uncertainty assessment for this methodology based on topographic surveying and Google Earth images. Moreover this research explored relationships between the accretion and erosion of land and the sediment load of the Mekong River. The results revealed a general pattern of accretion and erosion. The eastern coast, which is fragmented by 9 estuaries, was significant accretion and erosion, especially annual erosion rate of around 40 meter at Bo De estuary is noted. Meanwhile the western coast is rather stable, particularly annual accretion rate of up to 90-95 meter at Datmui commune of Camau province. This study indicated there is relative difference of coastline change rate among periods of 1973-1990, 1990-2005 and 2005- present. And the study illustrates the rate of shoreline change is significantly associated with sediment discharge on Mekong River through statistic approach, especially the phase of sediment flow decrease by dam and sand mining on Mekong River in recent 15 years. The results of methodology and maps from this research may be useful in planning and management of this exposed coastline.","hydrodynamics; alongshore current; tidal current; numerical modelling; wave-resolving model; SWASH","en","conference paper","","","","","","","","","","","Coastal Engineering","","",""
"uuid:b10bd890-22ff-419e-996e-181da3712ae0","http://resolver.tudelft.nl/uuid:b10bd890-22ff-419e-996e-181da3712ae0","Including tidal currents in a wave-resolving model","de Wit, F.P. (TU Delft Environmental Fluid Mechanics); Tissier, M.F.S. (TU Delft Environmental Fluid Mechanics); Reniers, A.J.H.M. (TU Delft Environmental Fluid Mechanics)","Aagaard, T. (editor); Deigaard, R. (editor); Fuhrman, D. (editor)","2017","Coastal systems are influenced by a combination of waves and tides. In certain cases, tide-induced alongshore currents can be of similar order or even larger than wave-induced currents. Until now, however, no detailed wave-resolving modelling studies included tidal currents. This paper presents a method to implement alongshore tidal currents by adding a pressure term to the alongshore momentum balance and includes modifications to the numerical wave maker to allow for both waves and currents to be generated. The method is successfully validated by comparing simulations with and without inclusion of the tidal current to measurements obtained from the COAST3D data set. Wave prediction is equally good with and without the tidal implementation, but the alongshore current and its distribution over the cross-shore are much better predicted by the model with the new method.","hydrodynamics; alongshore current; tidal current; numerical modelling; wave-resolving model; SWASH","en","conference paper","","","","","","","","","","","Environmental Fluid Mechanics","","",""
"uuid:92637820-7a37-49ba-a6ab-00450c3e2642","http://resolver.tudelft.nl/uuid:92637820-7a37-49ba-a6ab-00450c3e2642","Infragravity waves and bore merging","Tissier, M.F.S. (TU Delft Environmental Fluid Mechanics); Bonneton, P (Université de Bordeaux); Ruessink, Gerben (Universiteit Utrecht)","Aagaard, T. (editor); Deigaard, R. (editor); Fuhrman, D. (editor)","2017","The phenomenon of bore merging is investigated using two high-resolution laboratory experiments including bichromatic and irregular wave conditions. The locations at which waves start merging are identified and the hydrodynamic conditions in the vicinity of the merging points are examined. Bore merging takes place in the inner surf zone for all conditions considered. The infragravity- to short-wave height ratio is close to or larger than one at the merging point, indicating that bore merging occurs in a part of the surf zone that is already dominated by the infragravity waves. Our data analysis is supplemented by numerical simulations that confirms the importance of infragravity waves in the occurrence bore merging. Moreover, our simulations suggest that bore merging has a very limited effect on the infragravity wave field. This casts doubts on the importance of bore merging as an infragravity wave generation mechanism.","hydrodynamics; alongshore current; tidal current; numerical modelling; wave-resolving model; SWASH","en","conference paper","","","","","","","","","","","Environmental Fluid Mechanics","","",""
"uuid:53768609-192a-4fc4-96fb-9b5d038e09b2","http://resolver.tudelft.nl/uuid:53768609-192a-4fc4-96fb-9b5d038e09b2","Morphodynamic modelling for Thuan An inlet, Vietnam","Lam, T.N.; Stive, M.J.; Verhagen, H.J.; Wang, Z.B.","","2006","Thuan An is a tidal inlet located in Vietnam in a tropical monsoon area. The inlet is very dynamic and variable under the influences of not only tides and waves from the sea but also flows and floods from upstream rivers. Therefore, morphodynamic behaviour of the inlet is very complicated and not well understood. Studies on inlet are also facing with problems of data insufficient. As an effort to gain more understanding on the tidal inlet behaviour, this paper presents a study of the inlet morphodynamics using a numerical modelling approach with the applications several modelling packages including DELFT3D and SOBEK-RURAL developed by WL|Delft Hydraulics. SOBEK has been used to simulate properly the floods in the rivers and on the floodplain. DELFT3D has been used to simulated hydrodynamics of the coastal waters and morphodynamics of the inlet. From the results of the numerical modelling experiments, some behavioural patterns of the inlet, like migration of the inlet channel, can be explained.","tidal inlet; hydrodynamics; morphology; numerical modelling","en","conference paper","","","","","","","","","Civil Engineering and Geosciences","Hydraulic Engineering","","","",""
"uuid:adb5ef04-f69b-49a3-8d41-f17678ad7241","http://resolver.tudelft.nl/uuid:adb5ef04-f69b-49a3-8d41-f17678ad7241","Improvement of Danube delta model","Hooijer, A.; Bakkum, R.C.J.","","2002","","numerieke modellen; numerical modelling; hydrodynamica; hydrodynamics; waterkwaliteit; water quality; estuaria; estuaries; Donau; Danube River","en","report","Deltares (WL)","","","","","","","","","","","","",""
"uuid:011694ee-394b-44f5-9866-981513bdd780","http://resolver.tudelft.nl/uuid:011694ee-394b-44f5-9866-981513bdd780","A new vertical approximation for the numerical simulation of non-hydrostatic free surface flows","Stelling, G.S.; Kester, J.A.T.M. van","","2000","","hydrodynamica; hydrodynamics; interpolatie; interpolation; numerieke modellen; numerical modelling; golftheorie; wave theory","en","report","Deltares (WL)","","","","","","","","","","","","",""
"uuid:832ff86e-640f-41ec-a3cd-0cd6247c7ed4","http://resolver.tudelft.nl/uuid:832ff86e-640f-41ec-a3cd-0cd6247c7ed4","Kustlocatie: Morfologische berekeningen","Bosboom, J.; Aarninkhof, S.G.J.; Roelvink, J.A.; Walstra, D.J.R.","","1996","","kustmorfologie; coastal morphology; hydrodynamica; hydrodynamics; morfodynamica; morphodynamics; numerieke modellen; numerical modelling","nl","report","Deltares (WL)","","","","","","","","","","","","",""
"uuid:f3d4362f-01e0-4666-b309-f84bb18178bc","http://resolver.tudelft.nl/uuid:f3d4362f-01e0-4666-b309-f84bb18178bc","Morphodynamic response of a tidal inlet after a reduction in basin area: Numerical simulation of hydro- and morphodynamics of the mesotidal inlet ""Het Friesche Zeegat""","Steijn, R.C.; Hartsuiker, G.","","1992","","hydrodynamica; hydrodynamics; simulatie; simulation; kustmorfologie; coastal morphology; numerieke modellen; numerical modelling; Waddenzee; getij-inlaten; tidal inlets","en","report","Deltares (WL)","","","","","","","","","","","","",""