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The inflow of river waters into the seas of the Russian Arctic, and its long-term and intra-annual, natural and anthropogenic changesтезисы доклада
- Авторы: MAGRITSKII DMITRY, Frolova Natalia, Vasilenko Alexander
- Сборник: ABSTRACT BOOK. XIIth Scientific Assembly of the International Association of Hydrological Sciences (IAHS 2025)
- Тезисы
- Год издания: 2025
- Место издания: IAHS Индия
- Первая страница: 270
- Последняя страница: 270
- Номер статьи: IAHS25 ABS B1672
- Аннотация: On the basis of improved series of annual and monthly water runoff at 73 gauges on rivers flowing into the seas of the Russian Arctic, long-term series (for 1936-2022) of annual inflow of river waters into the Arctic seas were obtained and the total annual runoff was estimated at 2,775 km3, the water runoff from individual sections of the sea coasts, at the closing hydrometric cross-sections and in the estuaries of the main northern rivers. It was found that the average annual runoff to the seas increased by 238 km3 per year, or 8.9%, compared with 1936-1988, and 1989 should be considered the general turning point. The proven increase is provided by the same trends in annual runoff fluctuations in almost all rivers in the catchments of the Arctic seas, with the exception of rivers in the northeast of the country, and mainly positive trends in seasonal runoff fluctuations. The statistical structure of long-term fluctuations in annual runoff has been studied. It is shown that water management activities practically do not affect the long-term dynamics of annual runoff (with the exception of the Yenisei River), but changed the water regime of many rivers regulated by reservoirs, including the largest ones. The research has been performed at the expense of RSF grant No. 24-17-00084
- Добавил в систему: Магрицкий Дмитрий Владимирович