Coastal Dynamics of the barents and kara seas in changing Environment

Baranskaya, A.; Belova, N.; Kokin, O.; Shabanova, N.; Aleksyutina, D.; Ogorodov, S.

Авторы: Baranskaya A., Belova N., Kokin O., Shabanova N., Aleksyutina D., Ogorodov S.
Сборник: 13th International MEDCOAST Congress on Coastal and Marine Sciences, Engineering, Management and Conservation, MEDCOAST 2017
Том: 1
Год издания: 2017
Место издания: MEDCOAST, Mediterranien Coastal Foundation Dalyan, Mugla, Turkey
Первая страница: 281
Последняя страница: 292
Аннотация: Coasts of the Arctic seas composed by permafrost are extremely vulnerable to the ongoing climate and environmental changes. Technogenic impact can also influence the rates of their erosion, causing rapid retreat. For key areas on the coasts of Barents and Kara Seas, connections between climate change, human activity and coastal erosion have been analyzed. Estimations of thermoabrasion rates were based on the results of direct field monitoring conducted for more than 35 years enriched by application of multitemporal remote sensing data. Hydrometeorological factors of coastal dynamics were analyzed using data from stationary observations and reanalysis; the wind-wave energy influencing the intensity of mechanical abrasion was calculated by applying Popov-Sovershaev's method based on observational data, digital elevation models and satellite imagery. It has been found out that periods of high coastal retreat rates are often determined by increase in the wind-wave energy. Such increase becomes possible due to the ice-free period prolongation causing exposure of the coasts to the strongest Autumn storms. Technogenic impact can also considerably influence local lithodynamic and cryogenic processes. Coinciding with periods of high wind-wave energy, human activity can lead to dramatic increase in coastal erosion rates in permafrost areas.
Добавил в систему: Огородов Станислав Анатольевич

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Coastal Dynamics of the barents and kara seas in changing Environmentстатья

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