Write your message
   [Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 3, Issue 3 (Autumn 2019) ::
ijcoe 2019, 3(3): 1-8 Back to browse issues page
An Analytical Study on the Formation of Submerged Bars in the Southern Coasts of Caspian Sea
Fatemeh Ghanbari , Mehdi Adjami, Soheil Ataei H.
Shahrood University of Technology
Abstract:   (602 Views)
Measuring cross-shore profiles is very important in coastal engineering studies, since the cross-shore profile determines the behavior of the sea in the coastal area and determines the process of depth changes in this region. As a result of waves, cross-shore profiles change, which will vary in stormy waves (erosion profile) in compare to normal wave conditions (cumulative profile). Considering the great changes in the Caspian Sea level, the purposes of this study are to investigate and determine the erosion or accumulation of coastal profiles based on Sunamura and Horikawaꞌs studies , determine the number of bars in profiles by Short and Aagaardꞌs equations and also determine the relations between coastal parameters with the wave steepness and changes in water level. The results show that for all the coastal areas in the Caspian Sea, the C-parameter is above 8; in other word a stormy erosional nature is dominant. Also according to  -parameter, for all regions the values are above 100 which means a very high possibility to form multi bars profiles (three bars) very high. As the wave's steepness rises, the location of the formation of the bars moves toward the coast, and the depth of water decreases at the beginning and the ends of the bars; also, in terms of lowering in the water level with the change in the height of the waves, the position and the geometric shape of the bars will not follow a certain trend
Keywords: Cross-shore, Profile, Bars, Erosion profile, Geometric shape, steepness
Full-Text [PDF 649 kb]   (178 Downloads)    
Type of Study: Research | Subject: Coastal Engineering
Received: 2019/05/20 | Accepted: 2019/11/25 | Published: 2020/06/25
References
1. Watanabe A, Maruyama K, Shimizu T, Sakakiyama T., (1986 Dec), "Numerical prediction model of three-dimensional beach deformation around a structure", Coastal Engineering in Japan. 1;29(1):179-94. [DOI:10.1080/05785634.1986.11924437]
2. Larson, H., Kraus, N.C., 1989,"Numerical model for simulating storminduced beach change (SBEACH)", Report 1. Empirical Foundation and Model Development, Technical Report, CERC-89-9, US Army Engineer Waterways Experiment Station, CERC, Viksburg, Mississippi, USA [DOI:10.5962/bhl.title.47893]
3. Pruszak Z, Różyński G, Zeidler RB., (1997 Jul) "Statistical properties of multiple bars", Coastal Engineering. 1;31(1-4):263-80. [DOI:10.1016/S0378-3839(97)00010-0]
4. Silvester, R., Hsu, J.R.C., 1997," Coastal Stabilization", Advanced Series on Ocean Engineering, vol. 14. [DOI:10.1142/3475]
5. Hsu, T-W., 1998, "Geometric characteristics of storm-beach profiles caused by inclined waves", Ocean Engineering 25 (1), 69-84. [DOI:10.1016/S0029-8018(97)00060-7]
6. Różyński G., (2003 Jun), "Data-driven modeling of multiple longshore bars and their interactions", Coastal Engineering. 1;48(3):151-70. [DOI:10.1016/S0378-3839(03)00024-3]
7. Günaydın K, Kabdaşlı MS., (2003 Sep) "Characteristics of coastal erosion geometry under regular and irregular waves", Ocean Engineering. 2003 Sep 1;30(13):1579-93. [DOI:10.1016/S0029-8018(03)00011-8]
8. Hashemi MR, Ghadampour Z, Neill SP., (2010 Oct), "Using an artificial neural network to model seasonal changes in beach profiles", Ocean Engineering. 1;37(14-15):1345-56. [DOI:10.1016/j.oceaneng.2010.07.004]
9. Demirci M, Akoz MS, Unes F., (2011) "An Experimental Study on Cross-Shore Sediment Transport", International Balkans Conference on Challenges of Civil Engineering, 2011.
10. Komurcu,M.I., Komur,M.A., Akpinar,A., Ozolcer,I.H., Yuksek,O.,2013, "Prediction of offshore bar-shape parameters resulted by cross-shore sediment transport using neural network", Applied Ocean Research 40 ,74-82. [DOI:10.1016/j.apor.2013.01.003]
11. Uzlu E, Kömürcü Mİ, Kankal M, Dede T, Öztürk HT.,( 2014 Oct), "Prediction of berm geometry using a set of laboratory tests combined with teaching-learning-based optimization and artificial bee colony algorithms", Applied Ocean Research. 2014 Oct 1; 48:103-13. [DOI:10.1016/j.apor.2014.08.002]
12. Demirci M, Aköz,M.S, Üneş,F.,( 2015) "Prediction of cross-shore sandbar volumes using neural network Approach", J Mar Sci Technol ., 20:171-179 [DOI:10.1007/s00773-014-0279-9]
13. Cheng J, Wang P, Smith ER., (2015 Apr) "Hydrodynamic conditions associated with an onshore migrating and stable sandbar", Journal of Coastal Research. 2015 Apr 8;32(1):153-63. [DOI:10.2112/JCOASTRES-D-14-00174.1]
14. López I, Aragonés L, Villacampa Y, Serra JC., (2017 May) "Neural network for determining the characteristic points of the bars", Ocean Engineering. 2017 May 15; 136:141-51. [DOI:10.1016/j.oceaneng.2017.03.033]
15. Kankal M, Uzlu E, Nacar S, Yüksek Ö.,( 2017),"Predicting temporal rate coefficient of bar volume using hybrid artificial intelligence approaches", Journal of Marine Science and Technology. 2017:1-9. [DOI:10.1007/s00773-017-0495-1]
16. López, Isabel, Luis Aragonés, and Yolanda Villacampa. "Modelling the cross-shore profiles of sand beaches using artificial neural networks." Marine Georesources & Geotechnology (2018): 1-12. [DOI:10.1080/1064119X.2018.1482510]
17. Ataei H., S., Lashteh Neshaei, M., Adjami, M., (2017),"CLASSIFICATION OF BARRED AND UNBARRED BEACH PROFILES IN THE CASPIAN SEA", Journal of Coastal and Marine Engineering, 2017; (): -.
18. Sunamura T, Horikawa K., (1974),"Two-dimensional beach transformation due to waves", Coastal Engineering, 1974 (pp. 920-938). [DOI:10.1061/9780872621138.056]
19. Shahini, Sh.,( 2006), Caspian Sea and its surroundings, Caspian Sea National Research Center, Water Research Institute, Ministry of Energy of I.R. Iran, 2006 (In Persian).
20. Short AD, Aagaard T., (1993 Apr "Single and multi-bar beach change models", Journal of Coastal Research. 1993 Apr 1:141-57.
21. CSNRC report, Caspian Sea Profiles. Water Research Institute, Ministry of Energy of I.R. Iran, 2016. http://wri.ac.ir/csnrc
22. Ataei H., S., Adjami, M., Lashteh Neshaei, M. A., and Ya'asubi, S. H.,( 2016) Investigation of sea level fluctuation on beach profile evolution of sandy coasts, Faculty of Civil Engineering, Shahrood University of Technology, MSc. Thesis,
23. PMO report, Caspian Sea Level Changes. Ministry of Roads & Urban development of I.R. Iran, 2016. http://www.pmo.ir/en/home.
24. King, C.A.M., (1972) Beaches and Coasts, 2nd ed., St. Martin's Press, New York, 314-334
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

ghanbari F, Adjami M, Ataei H. S. An Analytical Study on the Formation of Submerged Bars in the Southern Coasts of Caspian Sea. ijcoe. 2019; 3 (3) :1-8
URL: http://ijcoe.org/article-1-139-en.html


Volume 3, Issue 3 (Autumn 2019) Back to browse issues page
International Journal of Coastal and Offshore Engineering International Journal of Coastal and Offshore Engineering
Persian site map - English site map - Created in 0.06 seconds with 32 queries by YEKTAWEB 4162