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Assessment of Suspended Sediment Budget of the Lena River Delta Based on the Remote Sensing Datasetстатья
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Дата последнего поиска статьи во внешних источниках: 4 марта 2022 г.
- Авторы: Chalov S.R., Prokopeva K.N.
- Журнал: Izvestiya - Atmospheric and Oceanic Physics
- Том: 57
- Номер: 9
- Год издания: 2021
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 1051
- Последняя страница: 1060
- DOI: 10.1134/s0001433821090450
- Аннотация: This study evaluates long-term and seasonal changes of sediment budget in Lena delta based onremote sensing dataset. Since 2000 Landsat images have been applying during ice-free period, from June toSeptember. The sediment concentration at the delta topset was compared with sediment concentrations dataat the outlets of: the Main, the Olenekskaya, the Tumatskyaya, the Trofimovskaya and the Bykovskaya channels to calculate suspended sediment budget in delta. The sediment concentration was calculated based onthe archive Landsat images (more than 30 images). We have estimated influence of air temperature on thermal coastal erosion and the accumulation of sediments in the river Lena’s delta. The increase of the dailyaverage air temperature from 5°С to 14°С plays critical role in the degradation of permafrost and the activation of the processes of thermal erosion and thermal denudation of the right channels coasts and this factmeans that these results can help to estimate special aspects of biochemical budget of the delta
- Добавил в систему: Прокопьева Кристина Николаевна