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Matthew D. Piggott - One of the best experts on this subject based on the ideXlab platform.
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The Potential for Tidal Range Energy Systems to Provide Continuous Power: A UK Case Study
Journal of Marine Science and Engineering, 2020Co-Authors: Lucas Mackie, Matthew D. Piggott, D. S. Coles, Athanasios AngeloudisAbstract:The extraction of Tidal energy from head differences represents a predictable and flexible option for generating electricity. Here, we investigate the generation potential of prospective Tidal power plants in the UK. Originally conceived as separate projects, operating these schemes as a cooperative system could prove beneficial. Combined with the inherent operational flexibility of Tidal Range-based schemes, a notable Tidal phase difference in selected sites allows for the system to spread power generation over a larger proportion of the day. Using depth-averaged modelling and gradient-based optimisation techniques, we explore how a flexible cumulative operation schedule could be applied to provide a degree of continuous supply if desirable. While fully continuous operation is not achieved, a number of different optimisation schedules deliver cumulative continuous supply for over half of the year. The average minimum cumulative power output on these days is consistently over 500 MW out of a total installed capacity of 6195.3 MW. Furthermore, by introducing financial incentives associated with reliable, baseload supply, we provide an economic assessment of the Tidal power plant system. The daily minimum cumulative power output determines income in the modelled idealised baseload market, while excess supply is traded in an hourly variable wholesale energy market. Results indicate that subsidies would be required in order to make a pursuit of continuous generation financially advantageous over energy maximisation strategies.
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Modelling the impact of Tidal Range energy on species communities
Ocean & Coastal Management, 2020Co-Authors: Amy L. Baker, Athanasios Angeloudis, Alexandros Avdis, Matthew D. Piggott, Lucas Mackie, Robert M. Craighead, Emma J. Jarvis, Harriett C. Stenton, Jon HillAbstract:Abstract Tidal energy has the potential to form a key component of the energy production in a number of countries, including the UK. Nonetheless, the deployment of Tidal energy systems is associated with potential environmental impacts as prime resource sites often coincide with unique ecosystems inhabited by sensitive organisms. Previous studies have generally focused on the hydrodynamic impact of Tidal energy schemes, i.e. how schemes alter the flow dynamics and sedimentary transport processes. Whilst these efforts are key in understanding environmental impacts, there is no straightforward step for translating sediment to faunal changes. Species distribution models offer methods to quantitatively predict certain possible impacts of Tidal energy extraction. The River Severn is a distinguished candidate region for Tidal energy in the UK featuring sites under stringent ecological protection regulations. We examine the impact of a proposed Severn Tidal barrage on 14 species via the linking of hydrodynamic modelling to species distribution models. Through a selection of species that are linked via a simple food web system we extrapolate changes in prey species to the respective predator species. We show that species at lower trophic levels would be adversely affected by the barrage, but higher trophic level organisms increase in possible habitable area. Once food web relationships are acknowledged this increase in habitat area decreases, but is still net positive. Overall, all 14 species were affected, with most gaining in distribution area, and only four losing distribution area within the Severn Estuary. We conclude that a large-scale Tidal barrage may have detrimental and complex impacts on species distribution, altering food web dynamics and altering food availability in the Severn Estuary. The methodology outlined herein can be transferred to the assessment and optimisation of prospective projects globally to aide in the sustainable introduction of the technology.
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Utilising the flexible generation potential of Tidal Range power plants to optimise economic value
Applied Energy, 2019Co-Authors: Freddie Harcourt, Athanasios Angeloudis, Matthew D. PiggottAbstract:Abstract Tidal Range renewable power plants have the capacity to deliver predictable energy to the electricity grid, subject to the known variability of the tides. Tidal power plants inherently feature advantages that characterise hydro-power more generally, including a lifetime exceeding alternative renewable energy technologies and relatively low Operation & Maintenance costs. Nevertheless, the technology is typically inhibited by the significant upfront investment associated with capital costs. A key aspect that makes the technology stand out relative to other renewable options is the partial flexibility it possesses over the timing of power generation. In this study we provide details on a design methodology targeted at the optimisation of the temporal operation of a Tidal Range energy structure, specifically the Swansea Bay Tidal lagoon that has been proposed within the Bristol Channel, UK. Apart from concentrating on the classical incentive of maximising energy, we formulate an objective functional in a manner that promotes the maximisation of income for the scheme from the Day-Ahead energy market. Simulation results demonstrate that there are opportunities to exploit the predictability of the tides and flexibility over the precise timing of power generation to incur a noticeable reduction in the subsidy costs that are often negotiated with regulators and governments. Additionally, we suggest that this approach should enable Tidal Range energy to play a more active role in ensuring security of supply in the UK. This is accentuated by the income-based optimisation controls that deliver on average more power over periods when demand is higher. For the Swansea Bay Tidal lagoon case study a 23% increase is observed in the income obtained following the optimisation of its operation compared to a non-adaptive operation. Similarly, a 10% increase relative to an energy-maximisation approach over a year’s operation suggests that simply maximising energy generation in a setting where power prices vary may not be an optimal strategy.
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Tidal Range energy resource and optimization past perspectives and future challenges
Renewable Energy, 2018Co-Authors: Simon P. Neill, Athanasios Angeloudis, Peter E Robins, Ian Walkington, Sophie L. Ward, Ian Masters, Matt J. Lewis, Marco Piano, Alexandros Avdis, Matthew D. PiggottAbstract:Tidal energy is one of the most predictable forms of renewable energy. Although there has been much commercial and R&D progress in Tidal stream energy, Tidal Range is a more mature technology, with Tidal Range power plants having a history that extends back over 50 years. With the 2017 publication of the “Hendry Review” that examined the feasibility of Tidal lagoon power plants in the UK, it is timely to review Tidal Range power plants. Here, we explain the main principles of Tidal Range power plants, and review two main research areas: the present and future Tidal Range resource, and the optimization of Tidal Range power plants. We also discuss how variability in the electricity generated from Tidal Range power plants could be partially offset by the development of multiple power plants (e.g. lagoons) that are complementary in phase, and by the provision of energy storage. Finally, we discuss the implications of the Hendry Review, and what this means for the future of Tidal Range power plants in the UK and internationally.
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Tidal Range energy resource and optimization – Past perspectives and future challenges
Renewable Energy, 2018Co-Authors: Simon P. Neill, Athanasios Angeloudis, Peter E Robins, Ian Walkington, Sophie L. Ward, Ian Masters, Matt J. Lewis, Marco Piano, Alexandros Avdis, Matthew D. PiggottAbstract:Tidal energy is one of the most predictable forms of renewable energy. Although there has been much commercial and R&D progress in Tidal stream energy, Tidal Range is a more mature technology, with Tidal Range power plants having a history that extends back over 50 years. With the 2017 publication of the “Hendry Review” that examined the feasibility of Tidal lagoon power plants in the UK, it is timely to review Tidal Range power plants. Here, we explain the main principles of Tidal Range power plants, and review two main research areas: the present and future Tidal Range resource, and the optimization of Tidal Range power plants. We also discuss how variability in the electricity generated from Tidal Range power plants could be partially offset by the development of multiple power plants (e.g. lagoons) that are complementary in phase, and by the provision of energy storage. Finally, we discuss the implications of the Hendry Review, and what this means for the future of Tidal Range power plants in the UK and internationally.
Athanasios Angeloudis - One of the best experts on this subject based on the ideXlab platform.
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The Potential for Tidal Range Energy Systems to Provide Continuous Power: A UK Case Study
Journal of Marine Science and Engineering, 2020Co-Authors: Lucas Mackie, Matthew D. Piggott, D. S. Coles, Athanasios AngeloudisAbstract:The extraction of Tidal energy from head differences represents a predictable and flexible option for generating electricity. Here, we investigate the generation potential of prospective Tidal power plants in the UK. Originally conceived as separate projects, operating these schemes as a cooperative system could prove beneficial. Combined with the inherent operational flexibility of Tidal Range-based schemes, a notable Tidal phase difference in selected sites allows for the system to spread power generation over a larger proportion of the day. Using depth-averaged modelling and gradient-based optimisation techniques, we explore how a flexible cumulative operation schedule could be applied to provide a degree of continuous supply if desirable. While fully continuous operation is not achieved, a number of different optimisation schedules deliver cumulative continuous supply for over half of the year. The average minimum cumulative power output on these days is consistently over 500 MW out of a total installed capacity of 6195.3 MW. Furthermore, by introducing financial incentives associated with reliable, baseload supply, we provide an economic assessment of the Tidal power plant system. The daily minimum cumulative power output determines income in the modelled idealised baseload market, while excess supply is traded in an hourly variable wholesale energy market. Results indicate that subsidies would be required in order to make a pursuit of continuous generation financially advantageous over energy maximisation strategies.
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Tidal Range energy resource assessment of the Gulf of California, Mexico
Renewable Energy, 2020Co-Authors: Carlos Joel Mejia-olivares, Athanasios Angeloudis, Matt J. Lewis, Ivan D. Haigh, Simon P. NeillAbstract:Abstract There is growing interest in harnessing renewable energy resources in Latin America. Converting the energy of the tides into electricity has the distinct advantage of being predictable, yet the Tidal Range resource of Latin America is largely unquantified. The northern part of the Gulf of California (GC) in Mexico has a relatively large mean Tidal Range (4m–5m), and so could be a potential site for Tidal Range energy exploitation. A detailed quantification of the theoretical Tidal Range energy resource was performed using Tidal level predictions from a depth-averaged barotropic hydrodynamic model. In addition, a 0-D operation modelling approach was applied to determine the power that can be technically extracted at four key sites. The results show that the annual energy yield Ranges from 20 to 50 kWh/m2, while the maximum values are between 45 and 50 kWh/m2 in the vicinity of the Gulf of Santa Clara. Within the region, the Gulf of Santa Clara is one of the most promising, delivering a technical annual energy output of 125 GWh (ebb-only generation), 159 GWh (two-way) and 174 GWh (two-way with pumping) within an impoundment area of 10 km2. This equates to 50%, 40% and 33% of the absolute energy conversion relative to a much-studied reference site (Swansea Bay, UK) that has been under consideration as the world’s first Tidal lagoon power plant. This study provides the basis for more detailed analysis of the GC to guide selection of suitable sites for Tidal Range energy exploitation in the region.
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Modelling the impact of Tidal Range energy on species communities
Ocean & Coastal Management, 2020Co-Authors: Amy L. Baker, Athanasios Angeloudis, Alexandros Avdis, Matthew D. Piggott, Lucas Mackie, Robert M. Craighead, Emma J. Jarvis, Harriett C. Stenton, Jon HillAbstract:Abstract Tidal energy has the potential to form a key component of the energy production in a number of countries, including the UK. Nonetheless, the deployment of Tidal energy systems is associated with potential environmental impacts as prime resource sites often coincide with unique ecosystems inhabited by sensitive organisms. Previous studies have generally focused on the hydrodynamic impact of Tidal energy schemes, i.e. how schemes alter the flow dynamics and sedimentary transport processes. Whilst these efforts are key in understanding environmental impacts, there is no straightforward step for translating sediment to faunal changes. Species distribution models offer methods to quantitatively predict certain possible impacts of Tidal energy extraction. The River Severn is a distinguished candidate region for Tidal energy in the UK featuring sites under stringent ecological protection regulations. We examine the impact of a proposed Severn Tidal barrage on 14 species via the linking of hydrodynamic modelling to species distribution models. Through a selection of species that are linked via a simple food web system we extrapolate changes in prey species to the respective predator species. We show that species at lower trophic levels would be adversely affected by the barrage, but higher trophic level organisms increase in possible habitable area. Once food web relationships are acknowledged this increase in habitat area decreases, but is still net positive. Overall, all 14 species were affected, with most gaining in distribution area, and only four losing distribution area within the Severn Estuary. We conclude that a large-scale Tidal barrage may have detrimental and complex impacts on species distribution, altering food web dynamics and altering food availability in the Severn Estuary. The methodology outlined herein can be transferred to the assessment and optimisation of prospective projects globally to aide in the sustainable introduction of the technology.
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Tidal Range structure operation assessment and optimisation
Dams and Reservoirs, 2019Co-Authors: Athanasios AngeloudisAbstract:The construction and operation of Tidal Range structures has been in the spotlight since the UK Government-commissioned Hendry Review advised that Tidal power can play a significant role in the fut...
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Utilising the flexible generation potential of Tidal Range power plants to optimise economic value
Applied Energy, 2019Co-Authors: Freddie Harcourt, Athanasios Angeloudis, Matthew D. PiggottAbstract:Abstract Tidal Range renewable power plants have the capacity to deliver predictable energy to the electricity grid, subject to the known variability of the tides. Tidal power plants inherently feature advantages that characterise hydro-power more generally, including a lifetime exceeding alternative renewable energy technologies and relatively low Operation & Maintenance costs. Nevertheless, the technology is typically inhibited by the significant upfront investment associated with capital costs. A key aspect that makes the technology stand out relative to other renewable options is the partial flexibility it possesses over the timing of power generation. In this study we provide details on a design methodology targeted at the optimisation of the temporal operation of a Tidal Range energy structure, specifically the Swansea Bay Tidal lagoon that has been proposed within the Bristol Channel, UK. Apart from concentrating on the classical incentive of maximising energy, we formulate an objective functional in a manner that promotes the maximisation of income for the scheme from the Day-Ahead energy market. Simulation results demonstrate that there are opportunities to exploit the predictability of the tides and flexibility over the precise timing of power generation to incur a noticeable reduction in the subsidy costs that are often negotiated with regulators and governments. Additionally, we suggest that this approach should enable Tidal Range energy to play a more active role in ensuring security of supply in the UK. This is accentuated by the income-based optimisation controls that deliver on average more power over periods when demand is higher. For the Swansea Bay Tidal lagoon case study a 23% increase is observed in the income obtained following the optimisation of its operation compared to a non-adaptive operation. Similarly, a 10% increase relative to an energy-maximisation approach over a year’s operation suggests that simply maximising energy generation in a setting where power prices vary may not be an optimal strategy.
Simon P. Neill - One of the best experts on this subject based on the ideXlab platform.
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Tidal Range energy resource assessment of the Gulf of California, Mexico
Renewable Energy, 2020Co-Authors: Carlos Joel Mejia-olivares, Athanasios Angeloudis, Matt J. Lewis, Ivan D. Haigh, Simon P. NeillAbstract:Abstract There is growing interest in harnessing renewable energy resources in Latin America. Converting the energy of the tides into electricity has the distinct advantage of being predictable, yet the Tidal Range resource of Latin America is largely unquantified. The northern part of the Gulf of California (GC) in Mexico has a relatively large mean Tidal Range (4m–5m), and so could be a potential site for Tidal Range energy exploitation. A detailed quantification of the theoretical Tidal Range energy resource was performed using Tidal level predictions from a depth-averaged barotropic hydrodynamic model. In addition, a 0-D operation modelling approach was applied to determine the power that can be technically extracted at four key sites. The results show that the annual energy yield Ranges from 20 to 50 kWh/m2, while the maximum values are between 45 and 50 kWh/m2 in the vicinity of the Gulf of Santa Clara. Within the region, the Gulf of Santa Clara is one of the most promising, delivering a technical annual energy output of 125 GWh (ebb-only generation), 159 GWh (two-way) and 174 GWh (two-way with pumping) within an impoundment area of 10 km2. This equates to 50%, 40% and 33% of the absolute energy conversion relative to a much-studied reference site (Swansea Bay, UK) that has been under consideration as the world’s first Tidal lagoon power plant. This study provides the basis for more detailed analysis of the GC to guide selection of suitable sites for Tidal Range energy exploitation in the region.
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Tidal Range energy resource and optimization past perspectives and future challenges
Renewable Energy, 2018Co-Authors: Simon P. Neill, Athanasios Angeloudis, Peter E Robins, Ian Walkington, Sophie L. Ward, Ian Masters, Matt J. Lewis, Marco Piano, Alexandros Avdis, Matthew D. PiggottAbstract:Tidal energy is one of the most predictable forms of renewable energy. Although there has been much commercial and R&D progress in Tidal stream energy, Tidal Range is a more mature technology, with Tidal Range power plants having a history that extends back over 50 years. With the 2017 publication of the “Hendry Review” that examined the feasibility of Tidal lagoon power plants in the UK, it is timely to review Tidal Range power plants. Here, we explain the main principles of Tidal Range power plants, and review two main research areas: the present and future Tidal Range resource, and the optimization of Tidal Range power plants. We also discuss how variability in the electricity generated from Tidal Range power plants could be partially offset by the development of multiple power plants (e.g. lagoons) that are complementary in phase, and by the provision of energy storage. Finally, we discuss the implications of the Hendry Review, and what this means for the future of Tidal Range power plants in the UK and internationally.
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Tidal Range energy resource and optimization – Past perspectives and future challenges
Renewable Energy, 2018Co-Authors: Simon P. Neill, Athanasios Angeloudis, Peter E Robins, Ian Walkington, Sophie L. Ward, Ian Masters, Matt J. Lewis, Marco Piano, Alexandros Avdis, Matthew D. PiggottAbstract:Tidal energy is one of the most predictable forms of renewable energy. Although there has been much commercial and R&D progress in Tidal stream energy, Tidal Range is a more mature technology, with Tidal Range power plants having a history that extends back over 50 years. With the 2017 publication of the “Hendry Review” that examined the feasibility of Tidal lagoon power plants in the UK, it is timely to review Tidal Range power plants. Here, we explain the main principles of Tidal Range power plants, and review two main research areas: the present and future Tidal Range resource, and the optimization of Tidal Range power plants. We also discuss how variability in the electricity generated from Tidal Range power plants could be partially offset by the development of multiple power plants (e.g. lagoons) that are complementary in phase, and by the provision of energy storage. Finally, we discuss the implications of the Hendry Review, and what this means for the future of Tidal Range power plants in the UK and internationally.
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Interannual Variability of Two Offshore Sand Banks in a Region of Extreme Tidal Range
Journal of Coastal Research, 2015Co-Authors: Matt J. Lewis, Simon P. Neill, A.j. ElliottAbstract:ABSTRACT Lewis, M.J.; Neill, S.P., and Elliott, A.J., 2015. Interannual variability of two offshore sand banks in a region of extreme Tidal Range. Offshore sand banks play important roles for coastal flood protection and fisheries, and they are sources of marine aggregates. An 11-year record (1991–2002) of annual bathymetric surveys from two sand banks (Nash and Helwick) in the Bristol Channel (U.K.) were analysed. Both sand banks have a history of commercial dredging, and have dimensions of the order 10 km by 1 km, with a crest height rising to around 20–25 m above the surrounding sea bed. The crest at Nash Bank is exposed on the lowest spring tides, while Helwick Bank is always covered to a depth of at least 3 m. The volume of Nash Bank decreased over 10 years, and dredging was estimated to be responsible for around one third of this reduction. The volume of Helwick Bank also decreased over an 8-year period, but at a rate six times greater than the loss due to dredging. Significant interannual variabili...
Ian Walkington - One of the best experts on this subject based on the ideXlab platform.
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Tidal Range energy resource and optimization past perspectives and future challenges
Renewable Energy, 2018Co-Authors: Simon P. Neill, Athanasios Angeloudis, Peter E Robins, Ian Walkington, Sophie L. Ward, Ian Masters, Matt J. Lewis, Marco Piano, Alexandros Avdis, Matthew D. PiggottAbstract:Tidal energy is one of the most predictable forms of renewable energy. Although there has been much commercial and R&D progress in Tidal stream energy, Tidal Range is a more mature technology, with Tidal Range power plants having a history that extends back over 50 years. With the 2017 publication of the “Hendry Review” that examined the feasibility of Tidal lagoon power plants in the UK, it is timely to review Tidal Range power plants. Here, we explain the main principles of Tidal Range power plants, and review two main research areas: the present and future Tidal Range resource, and the optimization of Tidal Range power plants. We also discuss how variability in the electricity generated from Tidal Range power plants could be partially offset by the development of multiple power plants (e.g. lagoons) that are complementary in phase, and by the provision of energy storage. Finally, we discuss the implications of the Hendry Review, and what this means for the future of Tidal Range power plants in the UK and internationally.
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Tidal Range energy resource and optimization – Past perspectives and future challenges
Renewable Energy, 2018Co-Authors: Simon P. Neill, Athanasios Angeloudis, Peter E Robins, Ian Walkington, Sophie L. Ward, Ian Masters, Matt J. Lewis, Marco Piano, Alexandros Avdis, Matthew D. PiggottAbstract:Tidal energy is one of the most predictable forms of renewable energy. Although there has been much commercial and R&D progress in Tidal stream energy, Tidal Range is a more mature technology, with Tidal Range power plants having a history that extends back over 50 years. With the 2017 publication of the “Hendry Review” that examined the feasibility of Tidal lagoon power plants in the UK, it is timely to review Tidal Range power plants. Here, we explain the main principles of Tidal Range power plants, and review two main research areas: the present and future Tidal Range resource, and the optimization of Tidal Range power plants. We also discuss how variability in the electricity generated from Tidal Range power plants could be partially offset by the development of multiple power plants (e.g. lagoons) that are complementary in phase, and by the provision of energy storage. Finally, we discuss the implications of the Hendry Review, and what this means for the future of Tidal Range power plants in the UK and internationally.
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The energy gains realisable through pumping for Tidal Range energy schemes
Renewable Energy, 2013Co-Authors: Nicholas C. Yates, Ian Walkington, Richard Burrows, Judith WolfAbstract:Some previous work has made optimistic claims about the potential energy gains that could be made by using pumping with Tidal Range structures (barrages, lagoons and offshore Tidal impoundments). This paper explores the factors influencing whether such gains can be realised for positive head pumping (pumping once water levels have equalised), using 0-D modelling concepts.
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The Tidal Range energy potential of the West Coast of the United Kingdom
Applied Ocean Research, 2009Co-Authors: Richard Burrows, Ian Walkington, Judith Wolf, N.c. Yates, Terry Hedges, Jason HoltAbstract:With concerns mounting over the UK’s energy future and the effects of climate change, it will soon become paramount that all viable sources of renewable energy are fully exploited. This study has examined the scope for reliable and fully predictable Tidal electricity generation from the conjunctive operation of 5 major estuary barrages on the West Coast of the UK in an attempt to establish the potential scale of the extractable resources. Two levels of investigation have been undertaken: simple 0-D (‘two-tank’) modelling of barrage energy generation under different operational modes, using the hydraulic characteristics of turbine performance; and 2-D modelling of Tidal hydrodynamics over a wide sea area in a computational grid incorporating the barrages with turbines and sluices. It has been demonstrated that more than 33TWh per year of electricity should be attainable, from 22GW of installed capacity, this representing close to 10% of present UK demand.
Aida Heriati - One of the best experts on this subject based on the ideXlab platform.
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ANALISIS JULAT PASANG SURUT (Tidal Range) DAN PENGARUHNYA TERHADAP SEBARAN TOTAL SEDIMEN TERSUSPENSI (TSS) DI PERAIRAN TELUK PARE
Jurnal Kelautan: Indonesian Journal of Marine Science and Technology, 2016Co-Authors: Ulung Jantama Wisha, Aida HeriatiAbstract:ANALYSIS OF Tidal Range AND ITS EFFECT ON DISTRIBUTION OF TOTAL SUSPENDED SOLID (TSS) IN THE PARE BAY WATERS Pare Bay conditions is closely related to the mechanism of circulation in Makasar Strait. One of the problems that occur in Pare Bay waters is increased turbidity and low dynamics of transport inside the bay, which caused silting in some parts of the bay. The aim of this study was to determine Tidal Range characteristics and the influence of suspended sediment distribution as analysis of the sedimentation process and siltation at Pare bay. Descriptive quantitative method was used and the survey location was based on purposive sampling method. Tidal type in Pare Bay water was mix mainly semidiurnal tides with Formzahl Value was 0.895. The value of the water level below the lowest tide (Z 0 ) was 1036.44 cm. Mean sea level (MSL) value was 1107.97 cm. The vertical datum of MHHWS and MLLWS were 1143.47 cm and 1072.47 cm. Tidal Range cycle in spring condition was 102-129,56 cm bigger than cycle in neap condition Ranged from 55.53-82.47 cm. TSS concentrations Ranged from 0-7.0 mg/L in the surface and Ranged from 0- 10.0 mg/L in 5 meters depth. At high tide down, sediment was settling and at the time of high tide, sediment mixed back. Keywords : Pare Bay, suspended solid, Tidal Range, tide. ABSTRAK Kondisi perairan di Teluk Pare sangat berkaitan dengan mekanisme sirkulasi di Selat Makasar, Permasalahan yang terjadi di Teluk Pare salah satunya adalah tingginya tingkat kekeruhan dan rendahnya dinamika transport didalam teluk yang menyebabkan pendangkalan di beberapa bagian teluk. Tujuan dari penelitian ini adalah mengetahui karakteristik julat pasang surut dan pengaruhnya terhadap sebaran sedimen tersuspensi sebagai analisis proses sedimentasi dan pendangkalan di perairan Teluk Pare. Metode penelitian yang digunakan adalah deskriptif kuantitatif, metode penentuan lokasi titik pengambilan sampel air yaitu metode purposive sampling. Tipe pasang surut Teluk Pare adalah campuran condong harian ganda dengan nilai bilangan formzahl sebesar 0,895. Nilai muka air dibawah surut terendah (Z 0 ) sebesar 1036,44 cm. Nilai mean sea level (MSL) sebesar 1107,97 cm. Datum vertikal MHHWS dan MLLWS memiliki nilai 1143, 47 cm dan 1072,47 cm. Julat pasang (Tidal Range) siklusan saat siklus pasang purnama yaitu 102–129,56 cm lebih besar daripada siklus pasang perbani yang berkisar 55,53-82,47 cm. Konsentrasi TSS berkisar antara 0-7,0 mg/L pada permukaan dan berkisar antara 0–10 mg/L pada kedalaman 5 meter, pada saat pasang turun sedimen sudah mulai mengendap dan pada saat pasang naik sedimen teraduk kembali. Kata kunci: julat pasang, pasang surut, sedimen tersuspensi, Teluk Pare.
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ANALISIS JULAT PASANG SURUT (Tidal Range) DAN PENGARUHNYA TERHADAP SEBARAN TOTAL SEDIMEN TERSUSPENSI (TSS) DI PERAIRAN TELUK PARE ANALYSIS OF Tidal Range AND ITS EFFECT ON DISTRIBUTION OF TOTAL SUSPENDED SOLID (TSS) IN THE PARE BAY WATERS
2016Co-Authors: Aida Heriati, Pada Pusat, Penelitian Dan Pengembangan, Sumber Daya, Laut Dan Pesisir, Ancol TimurAbstract:Pare Bay conditions is closely related to the mechanism of circulation in Makasar Strait. One of the problems that occur in Pare Bay waters is increased turbidity and low dynamics of transport inside the bay, which caused silting in some parts of the bay. The aim of this study was to determine Tidal Range characteristics and the influence of suspended sediment distribution as analysis of the sedimentation process and siltation at Pare bay. Descriptive quantitative method was used and the survey location was based on purposive sampling method. Tidal type in Pare Bay water was mix mainly semidiurnal tides with Formzahl Value was 0.895. The value of the water level below the lowest tide (Z0) was 1036.44 cm. Mean sea level (MSL) value was 1107.97 cm. The vertical datum of MHHWS and MLLWS were 1143.47 cm and 1072.47 cm. Tidal Range cycle in spring condition was 102-129,56 cm bigger than cycle in neap condition Ranged from 55.53-82.47 cm. TSS concentrations Ranged from 0-7.0 mg/L in the surface and Ranged from 010.0 mg/L in 5 meters depth. At high tide down, sediment was settling and at the time of high tide, sediment mixed back.
