Grain size analysis of bottom sediments from lower sector of Danube River (Belene – Iron Gates I sectors) - 2024 – PN 23 30 03 03, National Project

The dataset comprises grain size analysis data of bottom sediments from the lower sector of the Danube River. The data were collected during two research cruises conducted between June 5 - June 17, 2024 and September 23 - October 6, 2024, as part of the national project “Optimizing the sustainable management of natural resources, enhancing water security, and increasing the resilience of ecosystems in the Lower Danube Basin, impacted by climate change and anthropogenic interventions” (PN 23 30 03 03). A total of 116 sediment samples were collected during the first expedition, in the following Danube sectors: Belene (Km 537-547), Corabia (Km 626-631), Salcia (Km 287-294), Gârla Mare (Km 820-844) and Iron Gates I (Km 934-952) and 119 during the second expedition, from this sectors: Calnovăț (Km 604-615), Bechet (Km 674-678), Pisculeț-Desa (Km 760–765), Bogdan-Secian (Km 781–786) and Downstream Iron Gates II (Km 860–870). Sampling was performed using a Van Veen grab by the GeoEcoMar research team. The dataset aims to support the characterization of sediment texture and the evaluation of spatial and temporal variability of bottom sediments in this section of the Danube River.