889809
doi
10.5281/zenodo.889809
oai:zenodo.org:889809
IORDACHE, Gabriel
National Institute of Marine Geology and Geo-Ecology
Sediment transport on the Romanian section of the Danube River
BONDAR, Constantin
National Institute of Marine Geology and Geo-Ecology
info:eu-repo/semantics/openAccess
Creative Commons Attribution 4.0 International
https://creativecommons.org/licenses/by/4.0/legalcode
Danube River
catchment basin
transport
sediment
coarse bed-load discharge
<p>The paper briefly presents the physico-geographical characteristics of the Danube River basin in order to introduce data and considerations on the river water and sediment discharges, focusing on the coarse-grained bed- and suspended loads.<br>
The analysis of interactions between the water flow and the riverbed physical structure allowed to establish the empirical functions of the bed- and suspended coarse-grained sediment load transport. For a given cross-section a linear dependence between the average specific water discharge and the coarse sediment bed-load average specific discharge as well as the mean concentration of the suspended coarse sediment was found.</p>
<p>The coarse-grained sediment transport empirical functions based on a long series data for the period 1965 – 1989 allowed the determination of the daily coarse-grained bed- and suspended sediment discharges along the Romanian Danube River section for an extended period between 1840 and 2012.</p>
<p>The multiannual average values and maximum annual discharges of the bed- and suspended coarse-grained sediment load (d50%>0.063 mm) have been<br>
computed for the cross-sections downstream the Iron Gates barrages.</p>
<p>For the coarse-grained bed load:</p>
<ul>
<li>The multiannual average values of the bed-load discharge vary from 14.6 kg/s at Gruia (km 856.5) to 5.6 kg/s at Ceatal Ismail (Km 80.5);</li>
<br>
<li>The maximum values of the bed-load discharge vary between 23.9 kg/s at Zimnicea (km 553.23) and 47.9 kg/s at Grindu (km 141.3).</li>
<li>For the coarse-grained suspended load:</li>
<li>The multiannual average values of the coarse-grained suspended load discharge vary between 54.1 kg/s at Zimnicea and 130.1 kg/s at Ceatal Ismail;</li>
<li>The maximum values of the coarse-grained suspended load discharge vary from 400 kg/s at Corabia (km 624.2) to 2048 kg/s at Ceatal Ismail. </li>
</ul>
Zenodo
2016-12-01
info:eu-repo/semantics/article
889808
1579531256.720543
5081315
md5:827602bb55f8473cf26ce05a04a1d0c2
https://zenodo.org/records/889809/files/02_BONDAR_2016.pdf
public
10.5281/zenodo.889808
isVersionOf
doi
Geo-Eco-Marina
No 22/2016
29-49
2016-12-01