Header Image Title: MORPHOLOGY AND WATER DYNAMICS OF CHANNEL BIFURCATION IN DELTAIC ENVIRONMENT
Peer-reviewed articles 17,970 +
ARTICLE METRICS


Altmetrics info

Title: MORPHOLOGY AND WATER DYNAMICS OF CHANNEL BIFURCATION IN DELTAIC ENVIRONMENT
MORPHOLOGY AND WATER DYNAMICS OF CHANNEL BIFURCATION IN DELTAIC ENVIRONMENT
Florin Dutu; Laura Dutu; Irina Catianis; Gabriel Iordache
10.5593/sgem2022/1.1/s01.003
10.5593/sgem2022/1.1
1314-2704
978-619-7603-38-5
English
22
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Geology
The study presents a detailed analyse of the morpho-dynamic processes of the main two bifurcations of the Danube River within its delta, at Ceatal Izmail and Ceatal St. George. The first bifurcation of the Danube, called Ceatal Izmail; here the river divides into two distributaries: a northern one, the Chilia (Kilia), and a southern one, the Tulcea. Forking to the right at Ceatal Izmail (Mile 43), the Tulcea distributary stretches further to 17 km to the second main hydrographic knot Ceatal Sfantu Gheorghe (St. George) at Mile 33.84 (km 62.2). Here, the Tulcea branch divides into two main distributaries: Sulina on the left and Sfantu Gheorghe (St. George) on the right. More than a century ago, these two bifurcations were submitted to hydro-technical works producing morphological changes of the fluvial bed, as well as redistribution of water and sediment flows between the three main distributaries. The history, morphology and hydrodynamics were studied in detail. On each bifurcation, hydrological, sedimentological and morphological measurements were performed on nine crosssections distributed upstream and downstream of the bifurcation in August 2021. The bifurcation angles, the slope, the flow separation zones and the velocities were investigated to understand the distribution of the water flow and bed morphology of both bifurcations.
bifurcation, Danube Delta, water dynamic, physiography
[1] Elliot, Deltas. Chapter 6. In. L.H.G. reading (Editor). Sedimentary and Facies, Elsevier, N.Y, pp 97-142, 1978.
[2] Burge L.M, Stability, morphology and surface grain patterns of channel bifurcation in gravel - cobble bedded anabranching rivers, Earth Surface Processes and Landforms UK, Vol. 31, pp. 1211-1226, 2006.
[3] Wang Z.B., Fokkink R.J., DeVries M., Langerak A., Stability of river bifurcations in 1D morphodynamic models. Journal of Hydraulic Research, UK, Vol. 33(6), pp 739 – 750, 1995.
[4] Van Denderen R.P., Shielen R.M.J., Blom A., Hulsher S.J.M.H., Kleinhans M.G., Morphodynamic assessment of side channel systems using a simple one-dimensional bifurcation model and a comparison with aerial images, Earth Surface Processes and Landforms, UK, Vol. 43, pp 1169-1182, 2018.
[5] Kleinhans M.G., Ferguson R.I., Lane S.N., and Hardy R.J., Splitting rivers at their seams: bifurcations and avulsion. Earth Surface Processes and Landforms, UK, Vol. 38, pp 47-61, 2013.
[6] Driga B.V., Delta Dunarii - Sistemul circulatiei apei. Casa Cartii de Stiinta ClujNapoca. Romania, p. 256, 2004.
[7] Panin N., Tiron Du?u L., Du?u F., The Danube Delta an Overview of its Holocene Evolution. Mediterranee, France, vol. 126, pp 37-54, 2016.
[8] Iordache G., Catianis I., Anghel S., Pop I.C., Assessing Danube riverbed morphology as a response to natural and anthropogenic conditions using GIS: a case study of the Ceatal Izmail branching area, 21st International Scientific GeoConference SGEM, Bulgaria, pp. 661-668, 2021.
The research was supported by the Ministry of Research, Innovation and Digitization Core Program, Projects PN19200203 and PN19200401 (Contract no. 13N/08.02.2019) and Project AMBIACVA (Contract 23PFE/30.12.2021).
conference
https://doi.org/10.5593/sgem2022/1.1/s01.003
Download PDF
Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
21-28
04 - 10 July, 2022
website
8390