Abstract

This work reports on the cyclicity of the climate in the Sea of Azov Region studied on the basis of paleogeographic methods. The results of drilling on Dolgaya Spit of the Sea of Azov are presented. The diatoms and palynological analyses, as well as the soil column dating, indicate the cyclical pattern of climatic variability and accelerated silting of the Don delta under regulated runoff. The rate of sedimentation in the Sea of Azov during the Ancient Azov and New Azov stages varied from 0.2 to 2.0 mm/year. In the current period, under conditions of water scarcity and lack of floods, the sedimentation rate of clayey silts was 10–30 mm/year at the avandelta. Based on the analysis of hydrometeorological information, the period of time from 1884 to 2020 can be divided into three periods: I, cold; II, transitional; and III, warm. The study of the indicated specific features of the development of natural processes gives grounds to expect the next transitional period with dramatical interannual fluctuations of temperatures and alternation of warm and severe winters in the coming decade.

中文翻译：

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亚速海地区气候的周期性：全新世和当前时期（19 至 21 世纪）

摘要

这项工作报告了基于古地理方法研究的亚速海地区气候的周期性。介绍了在亚速海 Dolgaya Spit 上的钻探结果。硅藻和孢粉学分析以及土柱测年表明了气候变化的周期性模式和在调节径流下顿河三角洲加速淤积的模式。在古代亚速和新亚速阶段，亚速海的沉积速率从 0.2 到 2.0 毫米/年不等。当前，在缺水、无洪水的条件下，阿文三角洲粘土质粉砂的沉积速率为10-30毫米/年。根据水文气象资料分析，1884—2020年可分为三个时期：I，寒冷；二、过渡性；三、温暖。