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Delft University of Technology
1.
Li, Zhaoyi (author).
Large-scale and local morphological impact along the northern side of DELTA 21.
Degree: 2020, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:c5ba5c80-c90f-4dae-9cde-6d33839ab6d6 
► This report investigates the long-term morphological changes caused by the DELTA 21 project at the northern side, including the large scale morphological development with Delft3D…
(more)
▼ This report investigates the long-term morphological changes caused by the DELTA 21 project at the northern side, including the large scale morphological development with Delft3D model and at local scale the coastline deformation with UNIBEST-CL model. The necessity of the layout design improvement of DELTA 21 is analyzed by comparing different results in case of the improved layout and the original layout. On local scale, the model results indicate that shoreline retreat will happen around the head of Valmeer and large amount of sediment is lost in that section in case of both original layout and improved layout. And the improvement in the layout of DELTA 21 project has remarkable influence on coastline evolution and sediment balance. On large scale, a scour hole near the most western location of the Valmeer and a large submerged sand bar at the northern side of Valmeer are developed after 20 years. In case of original layout, the scour hole gives a larger maximum depth. It can be concluded that the improved layout of DELTA 21 gives better performance on both large scale and local scale.
DELTA 21
Advisors/Committee Members: Aarninkhof, S.G.J. (graduation committee), Onderwater, Martijn (mentor), Voorendt, M.Z. (graduation committee), Delft University of Technology (degree granting institution).
Subjects/Keywords: DELTA 21; Morphodynamic model; Morphological; Delft3D; Unibest-CL+
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APA (6th Edition):
Li, Z. (. (2020). Large-scale and local morphological impact along the northern side of DELTA 21. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:c5ba5c80-c90f-4dae-9cde-6d33839ab6d6
Chicago Manual of Style (16th Edition):
Li, Zhaoyi (author). “Large-scale and local morphological impact along the northern side of DELTA 21.” 2020. Masters Thesis, Delft University of Technology. Accessed February 28, 2021.
http://resolver.tudelft.nl/uuid:c5ba5c80-c90f-4dae-9cde-6d33839ab6d6.
MLA Handbook (7th Edition):
Li, Zhaoyi (author). “Large-scale and local morphological impact along the northern side of DELTA 21.” 2020. Web. 28 Feb 2021.
Vancouver:
Li Z(. Large-scale and local morphological impact along the northern side of DELTA 21. [Internet] [Masters thesis]. Delft University of Technology; 2020. [cited 2021 Feb 28].
Available from: http://resolver.tudelft.nl/uuid:c5ba5c80-c90f-4dae-9cde-6d33839ab6d6.
Council of Science Editors:
Li Z(. Large-scale and local morphological impact along the northern side of DELTA 21. [Masters Thesis]. Delft University of Technology; 2020. Available from: http://resolver.tudelft.nl/uuid:c5ba5c80-c90f-4dae-9cde-6d33839ab6d6
Delft University of Technology
2.
Habets, F.C. (author).
Project South Durban: Understanding the Sediment Transports and Budgets around the Durban DigOut Port, South Africa.
Degree: 2015, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:7a1b1778-60cb-4d94-bd86-ff262efe92da
► Durban is located on the east coast of South Africa in the province of KwaZulu-Natal. It is one of South Africa’s biggest cities and has…
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▼ Durban is located on the east coast of South Africa in the province of KwaZulu-Natal. It is one of South Africa’s biggest cities and has one of the busiest ports in Africa. To maintain Durban’s current economic position the Durban Port has to expand, which is problematic due to a lack of space. A solution is to develop a completely new port: the Durban DigOut Port. The past has taught us that significant erosion/accretion patterns are likely to occur around the breakwaters of the new port, as has happened at the Durban Port. In the long run climate change could also lead to alterations in shoreline behavior of the South Durban coast. The problem definition reads: “Currently, it is not fully known how the coastal system of South Durban functions and what the future state of the system will be under influence of climate change and after construction of the Durban DigOut Port.“ The goal of this research is to understand the sediment transports and budgets along the South Durban coast both now and in the future. To do this it is necessary to predict and assess future shoreline behavior, in response to anthropogenic interventions, like the Durban DigOut Port, and to climatic changes such as sea level rise and changing wave conditions. The time scope is confined to the coming 40years. For this research use has been made of two numerical models. The equilibrium based
Unibest-
CL+ model is used to create a 1D shoreline model to model long-term shoreline behavior. The process-based SWAN (or Delft3d-Wave) model is used to model wave propagation on the continental shelf and in the nearshore of the South Durban coast. Waves approach the coast from a predominantly south-eastern direction. The annual wave climate consists of south-southeastern swell waves and wind-waves approaching from all directions. It provides a net northward longshore sediment transport for the South Durban coast, which is modeled to be 700,000m3/year at the Durban Bluff. A gradient in longshore sediment transports is found over the area from Amanzimtoti to the Durban Bluff. This results in coastal erosion, because sediment input from rivers is lacking. Research into the longshore sediment transports for the South Durban coast shows that the coastline lies close to its equilibrium position and that maximum potential sediment transports are high (order of 1.5 to 3million m3/year). This leads to significant erosion/accretion patterns around the Durban DigOut Port. The maximum shoreline retreat on the lee side of the port is modeled to be 500meters, 30years after construction of the breakwaters. A bypass system of 550,000m3/year reduces shoreline retreat to a maximum of 30meters. In addition a local groyne system is proposed to prevent coastal retreat at the Sapref Refinery area. The calculated coastal retreat can be viewed as an extreme prediction, because a uniform sandy coast is assumed for the modeling, which is not realistic given the rocky formations along the South Durban coast. Changes in the average wave climate are found from literature; the average…
Advisors/Committee Members: Stive, M.J.F. (mentor), Walstra, D.J.R. (mentor), Huisman, B.J.A. (mentor), Slinger, J.H. (mentor), Luijendijk, A.P. (mentor).
Subjects/Keywords: longshore sediment transports; erosion/accretion; DigOut Port; climate change; Unibest-CL+; SWAN
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APA (6th Edition):
Habets, F. C. (. (2015). Project South Durban: Understanding the Sediment Transports and Budgets around the Durban DigOut Port, South Africa. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:7a1b1778-60cb-4d94-bd86-ff262efe92da
Chicago Manual of Style (16th Edition):
Habets, F C (author). “Project South Durban: Understanding the Sediment Transports and Budgets around the Durban DigOut Port, South Africa.” 2015. Masters Thesis, Delft University of Technology. Accessed February 28, 2021.
http://resolver.tudelft.nl/uuid:7a1b1778-60cb-4d94-bd86-ff262efe92da.
MLA Handbook (7th Edition):
Habets, F C (author). “Project South Durban: Understanding the Sediment Transports and Budgets around the Durban DigOut Port, South Africa.” 2015. Web. 28 Feb 2021.
Vancouver:
Habets FC(. Project South Durban: Understanding the Sediment Transports and Budgets around the Durban DigOut Port, South Africa. [Internet] [Masters thesis]. Delft University of Technology; 2015. [cited 2021 Feb 28].
Available from: http://resolver.tudelft.nl/uuid:7a1b1778-60cb-4d94-bd86-ff262efe92da.
Council of Science Editors:
Habets FC(. Project South Durban: Understanding the Sediment Transports and Budgets around the Durban DigOut Port, South Africa. [Masters Thesis]. Delft University of Technology; 2015. Available from: http://resolver.tudelft.nl/uuid:7a1b1778-60cb-4d94-bd86-ff262efe92da
3.
Camarena Calderon, R.A. (author).
Feasibility of a Marina port along the Buenos Aires coast, Argentina.
Degree: 2012, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:929b4b90-490a-42dd-8c67-3d65ef6aeff1
► This study was completed to determine which location along the Buenos Aires coast is better suited for the development of a Marina port, taking into…
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▼ This study was completed to determine which location along the Buenos Aires coast is better suited for the development of a Marina port, taking into account physical, environmental and economic features. A literature review related to port development, dimensioning, and port/coast interaction was completed. It was defined that the most relevant criteria to select a location were the water depths near shore, longshore transport rates, and the impact on the adjacent coast. Following this section, the preliminary port dimensions were defined based on the Unified Facilities Criteria (2009), and the California department of boating and waterways (2005). Each initially feasible location was selected based on the information obtained from the literature study, the expertise of the people involved in the project in Argentina, and the two week visit to the Buenos Aires coast. The reviewed literature provided some insight on the morphology and dynamics of the coast, although the reliability of the different studies was limited in many cases. Near-shore wave values were almost non-existent along the coast, and only a few studies had a more thorough methodology to estimate waves, longshore transport rates and coastline change. In this thesis study Delft3D-WAVE model was implemented, forced by offshore wave/wind data from the NOAA Wave Watch data base, including 18 offshore wave/wind points used as spatially varying boundary conditions. The bathymetry of the area was built based on the nautical charts obtained from Servicio de Hidrografia Naval (2012), and the GEBCO (2008) global bathymetry. The NOAA wave and wind data was classified in 125 scenarios by using ORCA tools. To show the results of the wave model, each scenario was plotted showing the distribution of the significant wave height, and the peak wave period. Added to that, 36 near-shore wave roses were created at the 7m water depth contour, covering the coast of Buenos Aires province. A strong dominance of south storms was found, it was also concluded that the coast further north had a weaker wave climate and consequently smaller transport rates, mainly due to energy dissipation induced by bottom friction of the extensive shallow areas near the north section of the coast. By using the calculated near-shore wave climate; longshore transport rates, and coastline changes along the coast were calculated by implementing
UNIBEST-
CL+. The sediment properties as the D10, D50 and D90 used for the model were derived from the samples extracted during the field visit in Argentina that were later measured at the TU-Delft Geoscience laboratory. The calculated longshore transport rates showed a good agreement when compared to the values obtained by Van Rijn, L.C. (2008) and Scalise, A.H., Schnack, E.J. (2007). After implementing the wave and coastline models, an evaluation of the locations was completed. All the locations were compared by using a multi-criteria table, and it was concluded that Pinamar was the most promising location, since it provided moderate waves and longshore…
Advisors/Committee Members: Stive, M.J.F. (mentor), Van Rijn, L.C. (mentor), Tonnon, P.K. (mentor), Schouten, J.J. (mentor), De Boer, G. (mentor).
Subjects/Keywords: Delft3DWAVE; Waves; UNIBEST-CL+; Longshore; Buenos Aires coast
…changes along the coast were calculated by implementing UNIBEST-CL+. The
sediment properties as… …73
UNIBEST CL… …85
6.1.
UNIBEST-CL+ model… …89
6.5.
UNIBEST-CL input… …94
6.6.
UNIBEST-CL results…
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APA (6th Edition):
Camarena Calderon, R. A. (. (2012). Feasibility of a Marina port along the Buenos Aires coast, Argentina. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:929b4b90-490a-42dd-8c67-3d65ef6aeff1
Chicago Manual of Style (16th Edition):
Camarena Calderon, R A (author). “Feasibility of a Marina port along the Buenos Aires coast, Argentina.” 2012. Masters Thesis, Delft University of Technology. Accessed February 28, 2021.
http://resolver.tudelft.nl/uuid:929b4b90-490a-42dd-8c67-3d65ef6aeff1.
MLA Handbook (7th Edition):
Camarena Calderon, R A (author). “Feasibility of a Marina port along the Buenos Aires coast, Argentina.” 2012. Web. 28 Feb 2021.
Vancouver:
Camarena Calderon RA(. Feasibility of a Marina port along the Buenos Aires coast, Argentina. [Internet] [Masters thesis]. Delft University of Technology; 2012. [cited 2021 Feb 28].
Available from: http://resolver.tudelft.nl/uuid:929b4b90-490a-42dd-8c67-3d65ef6aeff1.
Council of Science Editors:
Camarena Calderon RA(. Feasibility of a Marina port along the Buenos Aires coast, Argentina. [Masters Thesis]. Delft University of Technology; 2012. Available from: http://resolver.tudelft.nl/uuid:929b4b90-490a-42dd-8c67-3d65ef6aeff1
Delft University of Technology
4.
Ballas, Grigorios (author).
Wave Climate and Coastline Response of the Dutch Coast: Investigating the effect of large-scale offshore wind farm developments in the North Sea.
Degree: 2018, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:5f45fba6-1149-46fc-a019-acf2cd0a373c
► To counteract the effect of climate change, a global agreement was put into force in 2016, aiming to limit the increase in average global warming…
(more)
▼ To counteract the effect of climate change, a global agreement was put into force in 2016, aiming to limit the increase in average global warming and reduce greenhouse gas emissions. In that respect, European countries are investing in cleaner sources of energy and predominantly offshore wind, which has seen a rapid growth over the last years. The North Sea is a region suitable for developing offshore wind energy, given its strong wind climate and the relatively shallow waters. Many large-scale offshore wind farm (OWF) developments are currently ongoing in that region, while many more are planned and consented for the coming decades. The concept of large-scale OWF developments has spurred many discussions addressing its potential effect on the greater North Sea region. However, the long-term effect on the surrounding coastal areas has never been studied in detail. Especially for a low-lying country as the Netherlands, assessing the impact of large-scale OWFs is of great importance. This study aims at exploring the effect of future large-scale OWFs in the North Sea, focusing on the wave climate and the coastline response of the Dutch coast. Based on the roadmap for developing offshore wind energy until 2050, existing and future designated OWF areas are accounted in the North Sea region. The effect of OWFs on wind is introduced in a schematized way, with a constant decrease in wind speed of 20% inside the OWF areas, based on literature knowledge. Supplementary, based on the vision of creating an artificial energy island for storing and redistributing the wind farm generated electricity, a 5 km2 island is introduced, approximately 30 km away from the Dutch coast. The effect on the nearshore wave climate is studied using the numerical model SWAN, while the resulting effect on the alongshore morphology is assessed using coastline model Unibest-CL+. The impact of future OWFs on the nearshore wave climate is found to be dependent on the size, shape, orientation and distance from the coast of the individual wind farms. Results show a mean decrease in significant wave height in the order of 1 – 2%. In addition, slight changes in wave direction are observed. The effect on wave climate reduces the alongshore sediment transport at the Dutch coast, by an order of 10% with respect to present values. This results in net-induced erosion, which requires nourishment. The study shows that the areas north of Zandvoort and Petten need the greatest nourishment volumes, in the range of 1.5 – 2.5 m3/m/year. This is an additional 1% on the current annual nourishment volumes supplied along the Dutch coast. The underlying study has proved to be effective in quantifying the chain of effects of OWFs and identifying potential hot-spots along the Dutch coast. The knowledge acquired from these effects can be used to optimize future OWF planning in relation to coastline maintenance policies.
Civil Engineering
Advisors/Committee Members: Aarninkhof, Stefan (mentor), Hoekstra, Roderik (mentor), Moerman, Emiel (mentor), Zijlema, Marcel (mentor), Delft University of Technology (degree granting institution).
Subjects/Keywords: large-scale offshore wind farms; North Sea; Dutch coast; energy island; coastal engineering; long-term morphodynamics; wave modeling; coastline modeling; coastal management; SWAN; Unibest-CL+
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APA ·
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APA (6th Edition):
Ballas, G. (. (2018). Wave Climate and Coastline Response of the Dutch Coast: Investigating the effect of large-scale offshore wind farm developments in the North Sea. (Masters Thesis). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:5f45fba6-1149-46fc-a019-acf2cd0a373c
Chicago Manual of Style (16th Edition):
Ballas, Grigorios (author). “Wave Climate and Coastline Response of the Dutch Coast: Investigating the effect of large-scale offshore wind farm developments in the North Sea.” 2018. Masters Thesis, Delft University of Technology. Accessed February 28, 2021.
http://resolver.tudelft.nl/uuid:5f45fba6-1149-46fc-a019-acf2cd0a373c.
MLA Handbook (7th Edition):
Ballas, Grigorios (author). “Wave Climate and Coastline Response of the Dutch Coast: Investigating the effect of large-scale offshore wind farm developments in the North Sea.” 2018. Web. 28 Feb 2021.
Vancouver:
Ballas G(. Wave Climate and Coastline Response of the Dutch Coast: Investigating the effect of large-scale offshore wind farm developments in the North Sea. [Internet] [Masters thesis]. Delft University of Technology; 2018. [cited 2021 Feb 28].
Available from: http://resolver.tudelft.nl/uuid:5f45fba6-1149-46fc-a019-acf2cd0a373c.
Council of Science Editors:
Ballas G(. Wave Climate and Coastline Response of the Dutch Coast: Investigating the effect of large-scale offshore wind farm developments in the North Sea. [Masters Thesis]. Delft University of Technology; 2018. Available from: http://resolver.tudelft.nl/uuid:5f45fba6-1149-46fc-a019-acf2cd0a373c
Delft University of Technology
5.
Dan, S.
Coastal Dynamics of the Danube Delta.
Degree: 2013, Delft University of Technology
URL: http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21
;
urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21
;
urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21
;
http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21
► Large parts of the Danube Delta coast suffered severe erosion during last decades due to both natural trends and human interventions. To investigate and quantify…
(more)
▼ Large parts of the Danube Delta coast suffered severe erosion during last decades due to both natural trends and human interventions. To investigate and quantify the processes controlling the Danube Delta coast evolution a systematic approach was employed. First, a hindcast of the wave climate was simulated using the numerical model SWAN and wind data recorded locally during 11 consecutive years. Second, the sediment transport was calculated using the simulated wave climate, field data and an one line numerical model (
UNIBEST CL+). A sediment budget and predictions for the future evolution of the study zone were derived further on. Third, the process based numerical model Delft-3D was used to investigate the episodic water level changes which produce locally large shoreline retreats. Fourth, an ideal spit was design and modelled with Delft-3D to understand the relationship between the two sediment transport components: cross and along shore. The results, along with historical data, were used to study the dynamics of the Sahalin spit, a particular geomorphologic feature formed at southernmost distributary mouth. Based on this particular case a conceptual model for formation and evolution of a spit at a river mouth was proposed. The thesis concludes with recommendations to mitigate the coastal erosion in a sustainable way by artificially supplying the retreating beach sectors.
Advisors/Committee Members: Stive, M.J.F..
Subjects/Keywords: Danube Delta; Sediment transport; Wave climate; Spit; River mouth; Delft-3D; SWAN; UNIBEST CL+; Prediction shoreline
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APA (6th Edition):
Dan, S. (2013). Coastal Dynamics of the Danube Delta. (Doctoral Dissertation). Delft University of Technology. Retrieved from http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21
Chicago Manual of Style (16th Edition):
Dan, S. “Coastal Dynamics of the Danube Delta.” 2013. Doctoral Dissertation, Delft University of Technology. Accessed February 28, 2021.
http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21.
MLA Handbook (7th Edition):
Dan, S. “Coastal Dynamics of the Danube Delta.” 2013. Web. 28 Feb 2021.
Vancouver:
Dan S. Coastal Dynamics of the Danube Delta. [Internet] [Doctoral dissertation]. Delft University of Technology; 2013. [cited 2021 Feb 28].
Available from: http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21.
Council of Science Editors:
Dan S. Coastal Dynamics of the Danube Delta. [Doctoral Dissertation]. Delft University of Technology; 2013. Available from: http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; urn:NBN:nl:ui:24-uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21 ; http://resolver.tudelft.nl/uuid:9c19651e-e744-43c3-aa85-7ea7abd14a21
. 
Open Access Theses and Dissertations
