Annual Variability of Hydrochemical and Hydrological Characteristics in Submarine Groundwater Discharge at Cape Aya (Crimean Peninsula) in the Period from 2019 to 2025

IF 1 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochemistry Pub Date : 2025-10-13 DOI:10.1134/S1066362225040162

O. N. Kozlovskaya, N. A. Bezhin, V. A. Razina, I. G. Shibetskaya, V. A. Turyanskii, R. O. Ustinov, I. G. Tananaev

{"title":"Annual Variability of Hydrochemical and Hydrological Characteristics in Submarine Groundwater Discharge at Cape Aya (Crimean Peninsula) in the Period from 2019 to 2025","authors":"O. N. Kozlovskaya, N. A. Bezhin, V. A. Razina, I. G. Shibetskaya, V. A. Turyanskii, R. O. Ustinov, I. G. Tananaev","doi":"10.1134/S1066362225040162","DOIUrl":null,"url":null,"abstract":"The paper presents the annual variability of 226Ra and 228Ra isotope concentrations, nutrients content, and hydrological parameters in coastal waters of the karsted area near Cape Aya in the period from 2019 to 2025. The minimum radionuclide concentrations correspond to dry periods (2021, 2023–2025). The 228Ra/226Ra isotope activity ratio was shown to be an indicator of freshwater influence even without significant salinity decline. The extent of the freshwater plume originating from the karst cavity was determined. Seasonal fluctuations in temperature, salinity, and biogenic elements were governed by meteorological conditions and the intensity of biogeochemical processes. The estimated submarine groundwater discharge (SGD) rate during the period from 2019 to 2025 ranged from 5.47 to 13.5 thousand m3/day, correlating with precipitation inputs and the duration of dry periods preceding sampling.","PeriodicalId":747,"journal":{"name":"Radiochemistry","volume":"67 4","pages":"544 - 551"},"PeriodicalIF":1.0000,"publicationDate":"2025-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radiochemistry","FirstCategoryId":"1085","ListUrlMain":"https://link.springer.com/article/10.1134/S1066362225040162","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}

引用次数: 0

Abstract

The paper presents the annual variability of ²²⁶Ra and ²²⁸Ra isotope concentrations, nutrients content, and hydrological parameters in coastal waters of the karsted area near Cape Aya in the period from 2019 to 2025. The minimum radionuclide concentrations correspond to dry periods (2021, 2023–2025). The ²²⁸Ra/²²⁶Ra isotope activity ratio was shown to be an indicator of freshwater influence even without significant salinity decline. The extent of the freshwater plume originating from the karst cavity was determined. Seasonal fluctuations in temperature, salinity, and biogenic elements were governed by meteorological conditions and the intensity of biogeochemical processes. The estimated submarine groundwater discharge (SGD) rate during the period from 2019 to 2025 ranged from 5.47 to 13.5 thousand m³/day, correlating with precipitation inputs and the duration of dry periods preceding sampling.

Abstract Image

查看原文本刊更多论文

2019 - 2025年亚亚角（克里米亚半岛）海底地下水排放水化学和水文特征的年变率

本文研究了2019 - 2025年阿雅角附近喀斯特区沿海水域226Ra和228Ra同位素浓度、营养成分含量和水文参数的年变率。最低放射性核素浓度对应于干旱期（2021年、2023-2025年）。228Ra/226Ra同位素活度比被证明是淡水影响的一个指标，即使盐度没有显著下降。确定了喀斯特溶洞中淡水羽流的范围。温度、盐度和生物成因元素的季节性波动受气象条件和生物地球化学过程强度的支配。2019年至2025年期间海底地下水流量（SGD）的估计速率在5.47至13.5万立方米/天之间，与降水输入和采样前干旱期的持续时间有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Radiochemistry CHEMISTRY, INORGANIC & NUCLEAR-

CiteScore

1.30

自引率

33.30%

发文量

期刊介绍： Radiochemistry is a journal that covers the theoretical and applied aspects of radiochemistry, including basic nuclear physical properties of radionuclides; chemistry of radioactive elements and their compounds; the occurrence and behavior of natural and artificial radionuclides in the environment; nuclear fuel cycle; radiochemical analysis methods and devices; production and isolation of radionuclides, synthesis of labeled compounds, new applications of radioactive tracers; radiochemical aspects of nuclear medicine; radiation chemistry and after-effects of nuclear transformations.