Thermohaline characteristics of the Azov Sea in the summer season of 1989–2021 and how they are affected by the runoff of the Don and Kuban Rivers
Considerable inter-annual variations of water temperature and salinity in the Azov Sea necessitate their constant monitoring. Following the numerous studies undertaken in this area, this work presents the specific features of inter-annual changes in temperature and salinity of the sea surface layer, averaged for the summer seasons of 1989–2021 both for the Azov Sea (excluding Taganrog Bay) and for its various areas; two representative time spans, 1989–2004 and 2005–2021, have been identified. The first time span was characterized by a relatively wide variation range of the temperature and by its decreased values, as well as by the decrease in the salinity. During the second time span, an increase in the both temperature and salinity of the sea surface layer occurred in the sea and its regions, which was induced by the increase in the air temperatures in the area and by the reduction of the relatively cold Don River runoff after 2005 in the case of the first parameter, and, for the second parameter, it resulted from the decrease in the runoff of the both Don and Kuban Rivers. Correlation analysis of the series of the summer temperature and salinity values by area and for the sea on the whole as they relate to the annual and maximum runoff of the Don River (Razdorskaya) and to the annual runoff of the Kuban River (Krasnodar and the river mouth) for 1989–2021 has shown the absence of the significant relationship with temperature and its presence with salinity both for the sea and for most of its regions at the confidence level of 99 % for the Don River runoff and 95 % for the Kuban River runoff.
Main Author: | |
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Format: | Journal Contribution biblioteca |
Language: | Russian |
Published: |
2023
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Subjects: | Annual variations, Long-term records, Correlation analysis, Salinity data, Air temperature, Sea surface salinity, Корреляционный анализ, Режим температуры воды, ASFA_2015::R::Runoff, ASFA_2015::T::Thermohaline circulation, ASFA_2015::S::Sea surface temperature, |
Online Access: | http://hdl.handle.net/1834/42633 |
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dig-aquadocs-1834-426332023-06-09T02:08:23Z Thermohaline characteristics of the Azov Sea in the summer season of 1989–2021 and how they are affected by the runoff of the Don and Kuban Rivers Термохалинные характеристики Азовского моря в летний период 1989–2021 гг. и влияние на них стока рек Дон и Кубань Кочергин, Анатолий Annual variations Long-term records Correlation analysis Salinity data Air temperature Sea surface salinity Корреляционный анализ Режим температуры воды ASFA_2015::R::Runoff ASFA_2015::T::Thermohaline circulation ASFA_2015::S::Sea surface temperature Considerable inter-annual variations of water temperature and salinity in the Azov Sea necessitate their constant monitoring. Following the numerous studies undertaken in this area, this work presents the specific features of inter-annual changes in temperature and salinity of the sea surface layer, averaged for the summer seasons of 1989–2021 both for the Azov Sea (excluding Taganrog Bay) and for its various areas; two representative time spans, 1989–2004 and 2005–2021, have been identified. The first time span was characterized by a relatively wide variation range of the temperature and by its decreased values, as well as by the decrease in the salinity. During the second time span, an increase in the both temperature and salinity of the sea surface layer occurred in the sea and its regions, which was induced by the increase in the air temperatures in the area and by the reduction of the relatively cold Don River runoff after 2005 in the case of the first parameter, and, for the second parameter, it resulted from the decrease in the runoff of the both Don and Kuban Rivers. Correlation analysis of the series of the summer temperature and salinity values by area and for the sea on the whole as they relate to the annual and maximum runoff of the Don River (Razdorskaya) and to the annual runoff of the Kuban River (Krasnodar and the river mouth) for 1989–2021 has shown the absence of the significant relationship with temperature and its presence with salinity both for the sea and for most of its regions at the confidence level of 99 % for the Don River runoff and 95 % for the Kuban River runoff. Значительная межгодовая изменчивость температуры и солености вод Азовского моря предполагает проведение постоянного мониторинга этих параметров. В продолжение многочисленных исследований этого направления в данной работе приводятся особенности межгодового хода температуры и солености поверхностного слоя, значения которых осреднены за летние периоды 1989–2021 гг. как в собственно Азовском море, так и в его районах с выделением двух характерных периодов: 1989–2004 и 2005–2021 гг. Первый период характеризовался относительно большим диапазоном изменчивости температуры и пониженными ее значениями, а также снижением значений солености. Во второй период происходил рост как температур, так и солености поверхностного слоя в собственно море и в его районах, что для первого параметра было обусловлено ростом температур воздуха в районе и уменьшением относительно прохладного речного стока р. Дон после 2005 г., для второго — снижением стока как р. Дон, так и р. Кубань. Корреляционный анализ рядов летних значений температуры и солености по районам и собственно морю со стоком годовым и максимальным р. Дон (Раздорская), а также годовым р. Кубань (Краснодар и устье) за период 1989–2021 гг. показал отсутствие значимой связи с температурой и ее наличие с соленостью как в собственно море, так и в большинстве его районов на уровне 99 % доверительной вероятности со стоком р. Дон и 95 % — р. Кубань. Published Refereed 2023-06-08T11:36:31Z 2023-06-08T11:36:31Z 2023 Journal Contribution 2618-8147 print 2619-1024 online 10.47921/2619-1024_2023_6_2_7 http://hdl.handle.net/1834/42633 ru https://journal.azniirkh.ru/arhiv_publikacii/ Attribution 4.0 International http://creativecommons.org/licenses/by/4.0/ pp.7–15 Azov Sea Азовское море Don River Река Дон Kuban River Река Кубань Razdorskaya Раздорская |
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topic |
Annual variations Long-term records Correlation analysis Salinity data Air temperature Sea surface salinity Корреляционный анализ Режим температуры воды ASFA_2015::R::Runoff ASFA_2015::T::Thermohaline circulation ASFA_2015::S::Sea surface temperature Annual variations Long-term records Correlation analysis Salinity data Air temperature Sea surface salinity Корреляционный анализ Режим температуры воды ASFA_2015::R::Runoff ASFA_2015::T::Thermohaline circulation ASFA_2015::S::Sea surface temperature |
spellingShingle |
Annual variations Long-term records Correlation analysis Salinity data Air temperature Sea surface salinity Корреляционный анализ Режим температуры воды ASFA_2015::R::Runoff ASFA_2015::T::Thermohaline circulation ASFA_2015::S::Sea surface temperature Annual variations Long-term records Correlation analysis Salinity data Air temperature Sea surface salinity Корреляционный анализ Режим температуры воды ASFA_2015::R::Runoff ASFA_2015::T::Thermohaline circulation ASFA_2015::S::Sea surface temperature Кочергин, Анатолий Thermohaline characteristics of the Azov Sea in the summer season of 1989–2021 and how they are affected by the runoff of the Don and Kuban Rivers |
description |
Considerable inter-annual variations of water temperature and salinity in the Azov Sea necessitate their constant monitoring. Following the numerous studies undertaken in this area, this work presents the specific features of inter-annual changes in temperature and salinity of the sea surface layer, averaged for the summer seasons of 1989–2021 both for the Azov Sea (excluding Taganrog Bay) and for its various areas; two representative time spans, 1989–2004 and 2005–2021, have been identified. The first time span was characterized by a relatively wide variation range of the temperature and by its decreased values, as well as by the decrease in the salinity. During the second time span, an increase in the both temperature and salinity of the sea surface layer occurred in the sea and its regions, which was induced by the increase in the air temperatures in the area and by the reduction of the relatively cold Don River runoff after 2005 in the case of the first parameter, and, for the second parameter, it resulted from the decrease in the runoff of the both Don and Kuban Rivers. Correlation analysis of the series of the summer temperature and salinity values by area and for the sea on the whole as they relate to the annual and maximum runoff of the Don River (Razdorskaya) and to the annual runoff of the Kuban River (Krasnodar and the river mouth) for 1989–2021 has shown the absence of the significant relationship with temperature and its presence with salinity both for the sea and for most of its regions at the confidence level of 99 % for the Don River runoff and 95 % for the Kuban River runoff. |
format |
Journal Contribution |
topic_facet |
Annual variations Long-term records Correlation analysis Salinity data Air temperature Sea surface salinity Корреляционный анализ Режим температуры воды ASFA_2015::R::Runoff ASFA_2015::T::Thermohaline circulation ASFA_2015::S::Sea surface temperature |
author |
Кочергин, Анатолий |
author_facet |
Кочергин, Анатолий |
author_sort |
Кочергин, Анатолий |
title |
Thermohaline characteristics of the Azov Sea in the summer season of 1989–2021 and how they are affected by the runoff of the Don and Kuban Rivers |
title_short |
Thermohaline characteristics of the Azov Sea in the summer season of 1989–2021 and how they are affected by the runoff of the Don and Kuban Rivers |
title_full |
Thermohaline characteristics of the Azov Sea in the summer season of 1989–2021 and how they are affected by the runoff of the Don and Kuban Rivers |
title_fullStr |
Thermohaline characteristics of the Azov Sea in the summer season of 1989–2021 and how they are affected by the runoff of the Don and Kuban Rivers |
title_full_unstemmed |
Thermohaline characteristics of the Azov Sea in the summer season of 1989–2021 and how they are affected by the runoff of the Don and Kuban Rivers |
title_sort |
thermohaline characteristics of the azov sea in the summer season of 1989–2021 and how they are affected by the runoff of the don and kuban rivers |
publishDate |
2023 |
url |
http://hdl.handle.net/1834/42633 |
work_keys_str_mv |
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_version_ |
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