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The Don River Delta is situated in the European part of South Russia and is the most eastern from the deltas of the Mediterranean – Black Sea basin (MBSB). The Delta is under considerable stress caused by anthropogenic pressure and climate change. We analyzed in our study meridional annual delta front movement (DFM) and annually averaged inner channel width (ICW) as major geomorphological characteristics of the Don Delta stability and river runoff (RR), fluvial sediment delivery (FSD) and maximum height of water in the center of the Delta (MHA) as major hydrological drivers. We studied if the delta front movement can be described by fluvial sediment delivery and a maximum height of water in the center of the Delta as a proxy for suspended sediments delivered by surges in simplified form; 2) if the impact of seawater from surges on cross-section areas approximated by inner channel width diminishes rapidly at a distance of approximately 0.65 of maximum channel length from the delta apex like in typical tidal deltas. We found that annual dynamics of delta front movement in simplified form can be described by fluvial sediment delivery and maximum water level height from surges in the Delta and that an impact of seawater from surges on cross-section areas approximated by inner channel width is seen till a distance of approximately 0.65 of maximum channel length from the Don Delta apex like in typical tidal deltas.

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Geomorphological and Ecological Transformations in the River Don Delta in the Last 60 Years Due to Climate Change and River Engineering

  • 会议论文

  • 发表日期：

    2026年

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  • Sergey Venevsky,
  • Sergey Berdnikov,
  • John W. Day,
  • Vera Sorokina,
  • Peng Gong,
  • Aleksey Kleshchenkov,
  • Valerii Kulygin,
  • Wenyu Li,
  • Samir Misirov,
  • Igor Sheverdyaev,
  • Cui Yuan,
  • Liviu Giosan

摘要

The Don River Delta is situated in the European part of South Russia and is the most eastern from the deltas of the Mediterranean – Black Sea basin (MBSB). The Delta is under considerable stress caused by anthropogenic pressure and climate change. We analyzed in our study meridional annual delta front movement (DFM) and annually averaged inner channel width (ICW) as major geomorphological characteristics of the Don Delta stability and river runoff (RR), fluvial sediment delivery (FSD) and maximum height of water in the center of the Delta (MHA) as major hydrological drivers. We studied if the delta front movement can be described by fluvial sediment delivery and a maximum height of water in the center of the Delta as a proxy for suspended sediments delivered by surges in simplified form; 2) if the impact of seawater from surges on cross-section areas approximated by inner channel width diminishes rapidly at a distance of approximately 0.65 of maximum channel length from the delta apex like in typical tidal deltas. We found that annual dynamics of delta front movement in simplified form can be described by fluvial sediment delivery and maximum water level height from surges in the Delta and that an impact of seawater from surges on cross-section areas approximated by inner channel width is seen till a distance of approximately 0.65 of maximum channel length from the Don Delta apex like in typical tidal deltas.