V. V. Dolotov^*, V. F. Udovik

Marine Hydrophysical Institute of RAS, Sevastopol, Russia

^* e-mail: dolotov_v_v@mhi-ras.ru

Abstract

The paper describes the geoinformation software developed for automated formation of an array of input parameters necessary to assess the direction and relative intensity of alongshore sediment flows using the wind energy method. This method establishes a direct relationship between the energy of wind action on the water surface and the intensity of sediment movement. The method can be applied to calculations for shallow and relatively straight coastal sections with sand and gravel deposits. As input parameters, the software uses information about both the wind direction and speed, as well as the length of the wave acceleration along the sectors of different directions and the average depth along the accele-ration rays. These parameters are individual for each segment of the approximation of the study coast section. The possibility of using wind data as the only parameter characterizing the driving force provides an advantage when using the method to conduct preliminary and reconnaissance assessments of the structure and main parameters of sediment movement in the areas that are poorly studied or not covered with disturbance data. The basics of the method were developed in the absence of computer technology. Therefore, the considerable complexity of preparing regional data limited the possibility to detail the coastline when approximating it by a piecewise linear function. The same limitation was imposed on the number of sectors in the wind direction when calculating the energy interpreted as a sediment movement force. The development and availability of modern geoinformation technologies in terms of creating new digital models of the bottom relief or using existing ones predetermined that the authors develop a modified version of the calculation scheme of the wind energy method and a specialized software tool to automate the preparation stage of a set of regional input parameters. The software allows to significantly accelerate preparation of digital data arrays to clarify the structure of sediment flows for extended sections of the coastal zone of Western Crimea.

Keywords

longshore sediment flows, wind energy method, wind-wave regime, GIS, lithodynamics processes, coastal zone, automation of calculations

Acknowledgments

The work was performed under state assignment of MHI RAS on topics no. 0827-2020-0004 “Coastal research”.

For citation

Dolotov, V.V. and Udovik, V.F., 2023. A Software Tool for Operative Data Preparation for Assessing the Structure of Long-Shore Sediment Flows in the Coastal Zone of the Sea. Ecological Safety of Coastal and Shelf Zones of Sea, (4), pp. 46–55.

References

1. Bird, E.C.F., 1985. Coastline Changes: A Global Review. Chichester; N.Y.: John Wiley & Sons, 232 p.
2. Longinov, V.V., 1964. Some Aspects of Wave Action on A Gently Sloping Sandy Beach. International Geology Review, 6(2), pp. 212–227. https://doi.org/10.1080/00206816409474613
3. Dyer, K.R., 1986. Coastal and Estuarine Sediment Dynamics. Chichester: Wiley, 358 p.
4. Dean, R.G. and Dalrymple, R.A., 2001. Coastal Processes with Engineering Applications. Cambridge: Cambridge University Press, 489 p. https://doi.org/10.1017/CBO9780511754500
5. Kos’yan, R.D., Podymov, I.S. and Pykhov, N.V., Eds., 2003. Dynamical Processes in the Sea Nearshore Zone. Мoscow: Scientific World, 320 p. doi:10.13140/RG.2.1.4589.7761 (in Russian).
6. Smith, E.R., Wang, P. and Zhang, J., 2003. Evaluation of the CERC Formula Using Large-Scale Model Data. In: R. A. Davis Jr., A. H. Sallenger Jr. and P. Howd, Eds., 2003. Coastal Sediments 2003: Crossing Disciplinary Boundaries – Proceedings of the International Conference. Vol. 3. Vicksburg, Mississippi, 2003. CD-ROM.
7. Knaps, R.J., 1968. On Computations of the Power of the Sea Shore Sand Drifts. Oceanology, 8(5), pp. 848–857 (in Russian).
8. Shishov, N.D., 1961. The Methods of Constracting a Distribution Curve of the Alongshore Sand Drift Transport Intensity at the Subwater Slope. Oceanology, 1(5), pp. 915–919 (in Russian).
9. Pravotorov, I.A., 1961. [On Application of the Hydrometeorological Method to Study Longshore Transport of Marine Sediments]. Vestnik MGU. Seriya Geograficheskaya, (2), pp. 28–33 (in Russian).
10. Ivanov, V.A. and Udovik, V.F., 2005. Evaluation of the Balance of Drift Flow Intensity and the General Tendency of Coastal Area Reformation on the North-Eastern Coast of the Tuzla Island in 2004. In: MHI, 2005. Ekologicheskaya Bezopasnost' Pribrezhnoy i Shel'fovoy Zon i Kompleksnoe Ispol'zovanie Resursov Shel'fa [Ecological Safety of Coastal and Shelf Zones and Comprehensive Use of Shelf Resources]. Sevastopol: MHI. Iss. 13, pp. 159–178 (in Russian).
11. Goryachkin, Y.N., Udovik, V.F. and Kharitonova, L.V., 2011. Estimations of the Parameters of the Flux of Sediments near the West Coast of the Bakal’skaya Spit under the Conditions of Heavy Storms in 2007. Physical Oceanography, 20(5), pp. 356–365. https://doi.org/10.1007/s11110-011-9091-9
12. Hartanto, S., Furqan, Mhd., Siahaan, A.P.U. and Fitriani, W., 2017. Haversine Method in Looking for the Nearest Masjid. International Journal of Recent Trends in Engineering and Research, 3(8), pp. 187–195. doi:10.23883/IJRTER.2017.3402.PD61H

Files

 Full text (English)

 Full text (Russian)