Comprehensive Study of Wave and Lithodynamic Processes in the Coastal Area of the Village of Morskoye (Eastern Crimea)

L. V. Kharitonova*, D. V. Alekseev, V. V. Fomin

Marine Hydrophysical Institute of RAS, Sevastopol, Russia

* e-mail: l.kharitonova@mhi-ras.ru

Abstract

Wind waves can have a significant impact on the coastal infrastructure. The paper aims at a comprehensive study of regional characteristics of wind waves near the village of Morskoye (south-eastern coast of Crimea), which are necessary to develop a project of reconstruction of the highway adjacent to the coastal area. Space images and cartographic information were used to study the beach dynamics in the studied area. It is shown that before construction of the coast protection structures the beach width in the studied area was 25–30 m, whereas after the construction it narrowed down to 15–25 m. Based on the wind wave reanalysis data obtained using SWAN spectral model and ERA-Interim surface wind fields for 1979–2017, regime characteristics of waves in the coastal zone of Morskoye were calculated. It was found that waves with average periods of 3.0–3.5 s have the maximum recurrence (over 16 %). Wind waves coming from SE-SSE sector have the highest recurrence rate. Estimates were obtained for the extreme characteristics of wind waves that may occur once in a given number of years. The SWASH hydrodynamic model was used to perform mathematical modelling of wave run-up on the coastal area. In their calculations the authors used a regular grid of the coastal relief with high spatial resolution based on the interpolation of topo-geodetic and bathymetric survey results. An incoming wave was given as a soliton of 2.0; 3.0 and 3.4 m high. It was found that with the incoming wave height of 2.0 m, the vertical wave splash in the studied area varies within 1.7–2.2 m. At a height of 3.4 m, the splash reaches 1.8–2.9 m. In this case the beach is flooded completely. During the run-up, wave current velocity amounts up to 5 m/s. Along the lower boundary of the cliff the bottom maximum current velocity reaches 1.5–1.75 m/s. At such velocities near the cliff, the beach consisting of material with the grain size up to 60–90 mm can be eroded.

Keywords

wind waves, wave run-up, mathematical modellig, statistical characteristics, Black Sea, Crimea, SWAN, SWASH

Acknowledgments

The work was performed under state task of MHI, topic no. 0555-2021-0005, code “Coastal studies”.

For citation

Kharitonova, L.V., Alekseev, D.V. and Fomin, V.V., 2021. Comprehensive Study of Wave and Lithodynamic Processes in the Coastal Area of the Village of Morskoye (Eastern Crimea). Ecological Safety of Coastal and Shelf Zones of Sea, (3), pp. 5–22. doi:10.22449/2413-5577-2021-3-5-22 (in Russian).

DOI

10.22449/2413-5577-2021-3-5-22

References

  1. Goryachkin, Yu.N. and Dolotov, V.V., 2019. Sea Coasts of Crimea. Sevastopol: Colorit, 256 p. (in Russian).
  2. Goryachkin, Yu.N. and Kharitonova, L.V., 2017. Changes of the Crimean Coast in the Last Century. In: E. Ӧzhan, ed., 2017. Proceedings of the Thirteenth International MEDCOAST Congress on Coastal and Marine Sciences, Engineering, Management and Conservation MEDCOAST 17 (Mellieha, Malta, 31 October – 04 November 2017). Dalyan, Muğla, Turkey: Mediterranean Coastal Foundation. Vol. 2, pp. 861–870.
  3. Goryachkin, Yu.N. and Repetin, L.N., 2009. Storm Wind and Wave Regime near the Black Sea Coast of Crimea. In: MHI, 2009. Ekologicheskaya Bezopasnost' Pribrezhnykh i Shel'fovykh Zon i Kompleksnoe Ispol'zovanie Resursov Shel'fa [Ecological Safety of Coastal and Shelf Zones and Comprehensive Use of Shelf Resources]. Sevastopol, MHI. Iss. 19, pp. 56–69 (in Russian).
  4. Efimov, V.V. and Komarovskaya, O.I., 2009. [Atlas of Extreme Wind Waves of the Black Sea]. Sevastopol: MHI NANU, 59 p. (in Russian).
  5. Divinsky, B.V., Fomin, V.V., Kosyan, R.D. and Ratner, Y.D., 2020. Extreme Wind Waves in the Black Sea. Oceanologia, 62(1), рp. 23–30. https://doi.org/10.1016/j.oceano.2019.06.003
  6. Divinsky, B.V. and Kosyan, R.D., 2018. Wave Climate of the Coastal Zone of the Crimean Peninsula. Physical Oceanography, 25(2), pp. 93–101. doi:10.22449/1573-160X-2018-2-93-101
  7. Arkhipkin, V.S., Gippius, F.N., Koltermann, K.P. and Surkova, G.V., 2014. Wind Waves in the Black Sea: Results of a Hindcast Study. Natural Hazards and Earth System Sciences, 14(11), pp. 2883–2897. https://doi.org/10.5194/nhess-14-2883-2014
  8. Gippius, F.N. and Myslenkov, S.A., 2020. Black Sea Wind Wave Climate with a Focus on Coastal Regions. Ocean Engineering, 218, 108199. https://doi.org/10.1016/j.oceaneng.2020.108199
  9. Divinskii, B., Fomin, V., Kosyan, R. and Lazorenko, D., 2019. Maximum Waves in the Black Sea. In: MEDCOAST Foundation, 2019. Proceedings of the Fourteenth International MEDCOAST Congress on Coastal and Marine Sciences, Engineering, Management and Conservation MEDCOAST 2019 (Marmaris, Turkey, 22–26 October 2019). Muğla, Turkey: MEDCOAST Foundation. Vol. 2, pp. 799–810.
  10. Polonsky, A.B., Fomin, V.V. and Garmashov, A.V., 2011. Characteristics of Wind Waves of the Black Sea. Reports of the National Academy of Sciences of Ukraine, (8), pp. 108–112 (in Russian).
  11. Zijlema, M., Stelling, G. and Smit, P., 2011. SWASH: An Operational Public Domain Code for Simulating Wave Fields and Rapidly Varied Flows in Coastal Waters. Coastal Engineering, 58(10), pp. 992–1012. https://doi.org/10.1016/j.coastaleng.2011.05.015
  12. Kurkin, A.A., 2005. Non-Linear and Non-Stationary Dynamics of Long Waves in the Coastal Area. Nizhniy Novgorod: NGTU, 330 p. (in Russian).
  13. Lopatoukhin, L.J., Rozhkov, V.A., Ryabinin, V.E., Swail, V.R, Boukhanovsky, A.V. and Degtyarev, A.B., 2000. Estimation of Extreme Wind Wave Heights. JCOMM Technical Report No. 9. WMO/TD-No. 1041. WMO, 70 p.
  14. Krylov, Yu.M., 1966. [Spectral Methods to Study and Calculate Wind Waves]. Leningrad: Gidrometeoizdat, 258 p. (in Russian).
  15. Gourlay, M., 1992. Wave Set-Up, Wave Run-Up and Beach Water Table: Interaction between Surf Zone Hydraulics and Groundwater Hydraulics. Coastal Engineering, 17(1–2), pp. 93–144. https://doi.org/10.1016/0378-3839(92)90015-M

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