Features and evaluations of spatial and temporal changes of water runoff, sediment yield and heat flux in the Lena River delta

Magritsky, D.V.; Alexeevsky, N.I.; Aybulatov, D.N.; Fofonova, V.V.; Gorelkin, A.

Авторы: Magritsky D.V., Alexeevsky N.I., Aybulatov D.N., Fofonova V.V., Gorelkin A.
Журнал: Polarforschung
Том: 87
Номер: 2
Год издания: 2018
Издательство: Deutsche Gesellschaft fur Polarforschung
Местоположение издательства: Germany
Первая страница: 89
Последняя страница: 110
DOI: 10.2312/polarforschung.87.2.89
Аннотация: In the last 30–40 years, the water runoff, sediment yield and heat flux of the Lena River have undergone significant changes due to, mainly, climatic factors. Features of these changes at the marine margin of the Lena River delta are different compared to changes in the delta head area. The reason for this disparity is the transformation of river runoff in the large and multi-branched delta. New data and research results not only clarified the values of water flow, suspended sediment yield, and heat flux at the basin outlet station of the Lena, but also estimated the river runoff into the Laptev Sea. The data offering current distribution of water flow, suspended sediment discharges between the main deltaic branches, its long-term changes, and the character of the spring flooding within the upper part of the Lena River delta are presented in the article. Features and causes of long-term and intra-annual fluctuations of water flow, sediment yield, and heat flux of the Lena River have been studied in detail. The accuracy of the hydrological observations used and role of anthropogenic factors have also been evaluated.
Добавил в систему: Магрицкий Дмитрий Владимирович

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Features and evaluations of spatial and temporal changes of water runoff, sediment yield and heat flux in the Lena River deltaстатья

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