Abstract

This study is based on the results of targeted water sampling undertaken at different weather conditions and water levels in the Don River delta and the seashore. The main experiment covered the period from November 20, 2020, to March 18, 2021. Water for chemical analyses was sampled at maximal water surges: an easterly wind-driven decline in the water level and a westerly wind-driven rise in the water level; in some cases, layer by layer. At the same time, to clarify the nature of water (ground, riverine, or marine), and its dependence on the surge regimes of water was sampled from the main water pipeline in the city of Azov. The data were recorded under various conditions: in normal conditions, extreme fluctuations in the sea level, with a sharp increase in the proportion of groundwater under ice in the water balance, on a shallow seashore, and in delta arms during negative surges. In 2020, at the Donskoi hydrometric station, directly in the Don River channel, the measurements of water salinity (which depends on the underground runoff to a lesser extent) were started. The study data gave grounds to subdivide (classify) the transformed waters in the estuarine zone of the Azov–Don basin.

中文翻译：

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低水位条件下顿河沿岸和前三角洲水域的化学成分（20-21 世纪）

摘要

本研究基于在顿河三角洲和海滨的不同天气条件和水位下进行的有针对性的水采样结果。主要实验时间为 2020 年 11 月 20 日至 2021 年 3 月 18 日。 化学分析用水在最大潮水时取样：东风驱动水位下降，西风驱动水位上升; 在某些情况下，逐层。同时，为了阐明水的性质（地面、河流或海洋）及其对水涌状况的依赖，从亚速市的主要供水管道中取样。这些数据是在各种条件下记录的：在正常条件下，海平面剧烈波动，水平衡中冰下地下水的比例急剧增加，在浅海沿岸，以及在负浪涌期间的三角臂。2020 年，在 Donskoi 水文站，直接在 Don 河道上，开始测量水盐度（在较小程度上取决于地下径流）。研究数据为细分（分类）亚速河-顿河流域河口区的转化水域提供了依据。