Abstract
The transport pathways and exchange characteristics of the Kamil Abdüş Lagoon in Istanbul, Turkey, are simulated using a finite element model with a Lagrangian particle tracking module. The lagoon is in the process of being reconfigured. The simulations are performed using a draft configuration. The effect of winds and the number of particles on the e-folding time is simulated. Results show that the lagoon is strongly dominated by winds with a correlation coefficient of 0.897 between the wind and residual current magnitudes. The lagoon e-folds in 9.1 days under realistic winds and in 14.3 days when there is no wind with confidence levels of 5%. The Lagrangian study uses six simulations with particle numbers ranging between 65073 and 2730486. A methodology based on confidence levels is proposed. It is observed that approximately 784 000 particles are necessary to obtain 5% level of confidence. With a problematic history and new planning options, the lagoon has a potential to be used as an example setting, all-field study ground for anthropogenically engineered coastal ecosystems.
Highlights
The Kamil Abdus Lagoon (Lagoon hereafter) in the Tuzla district of Istanbul, Turkey (Figures 1 and 2), showed typical characteristics of a small and dynamic coastal lagoon until 1978, when a decision was made to make the area home for a growing shipyard industry
The results are presented in both Eulerian and Lagrangian framework to check consistency. While the former uses residuals to predict overall transport pathways, the latter concentrates on the e-folding time as a measure of the exchange
The highest current magnitudes of approximately 0.25 m/s are experienced in the channels (N2 and S2)
Summary
The Kamil Abdus Lagoon (Lagoon hereafter) in the Tuzla district of Istanbul, Turkey (Figures 1 and 2), showed typical characteristics of a small and dynamic coastal lagoon until 1978, when a decision was made to make the area home for a growing shipyard industry. A series of ecologically insensitive decisions followed, including landfills that closed the natural inlet, channeling of streams that carry fresh water into the lagoon and construction of a roadway that completely isolated the lagoon. For an excellent review of the event history of the lagoon, the reader is referred to Ozturk (2005)
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Environmental Engineering and Landscape Management
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
