caa a22 4500 605546592 CHVBK 20210128100941.0 cr unu---uuuuu 210128e20150701xx s 000 0 eng 10.1007/s10236-015-0847-5 doi (NATIONALLICENCE)springer-10.1007/s10236-015-0847-5 Impact of wind and tides on the Lena River freshwater plume dynamics in the summer season [Elektronische Daten] [Vera Fofonova, Sergey Danilov, Alexey Androsov, Markus Janout, Martin Bauer, Paul Overduin, Polona Itkin, Karen Wiltshire] The Lena plume dynamics in the Lena Delta region of the Laptev Sea are explored in simulations performed with the Finite Volume Coastal Ocean Model (FVCOM) on a mesh with the horizontal resolution 0.4-5km. The impact of wind and tides on the Lena plume propagation is analysed based on simulations for the summer season of 2008 and also on idealised experiments. All main Lena River freshwater channels (Trofimovskaya, Bykovskaya, Tumatskaya and Olenekskaya) produce buoyant outflows in the summer season. The surface plume buoyancy signature proves to be highly variable in time, especially in case of upwelling favourable wind events. Winds stronger than 6ms−1 can already turn the dynamics of flows from all main freshwater channels to the wind-driven state. During the summer season, the bulk of freshwater from the Lena River stays in the eastern Laptev Sea because of location of the main Lena River freshwater channels, their large Kelvin numbers and light summer winds. Westward and northward plume excursions are wind-driven, and the model skill in simulating them depends on the available wind forcing. The main mechanism of tidal influence in the freshwater plume zone is through tidally induced mixing, except for the northern vicinity of the delta, where residual circulation may contribute to the plume eastward transport significantly. Springer-Verlag Berlin Heidelberg, 2015 Laptev Sea shelf nationallicence Lena Delta nationallicence Freshwater plume nationallicence Shelf dynamics nationallicence Tidal dynamics nationallicence Fofonova Vera Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Hafenstraße 43, 25992, List, Germany aut Danilov Sergey Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bussestrasse 24, 27570, Bremerhaven, Germany aut Androsov Alexey Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bussestrasse 24, 27570, Bremerhaven, Germany aut Janout Markus Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Building Nordseevilla-1, 27570, Bremerhaven, Germany aut Bauer Martin Department of Environmental Meteorology, Trier University, Behringstraße 21 (Campus II), 54286, Trier, Germany aut Overduin Paul Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473, Potsdam, Germany aut Itkin Polona Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bussestrasse 24, 27570, Bremerhaven, Germany aut Wiltshire Karen Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Hafenstraße 43, 25992, List, Germany aut Ocean Dynamics Springer Berlin Heidelberg 65/7(2015-07-01), 951-968 1616-7341 65:7<951 2015 65 10236 https://doi.org/10.1007/s10236-015-0847-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10236-015-0847-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fofonova Vera Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Hafenstraße 43, 25992, List, Germany aut NATIONALLICENCE 700 1- Danilov Sergey Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bussestrasse 24, 27570, Bremerhaven, Germany aut NATIONALLICENCE 700 1- Androsov Alexey Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bussestrasse 24, 27570, Bremerhaven, Germany aut NATIONALLICENCE 700 1- Janout Markus Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Building Nordseevilla-1, 27570, Bremerhaven, Germany aut NATIONALLICENCE 700 1- Bauer Martin Department of Environmental Meteorology, Trier University, Behringstraße 21 (Campus II), 54286, Trier, Germany aut NATIONALLICENCE 700 1- Overduin Paul Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Telegrafenberg A43, 14473, Potsdam, Germany aut NATIONALLICENCE 700 1- Itkin Polona Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bussestrasse 24, 27570, Bremerhaven, Germany aut NATIONALLICENCE 700 1- Wiltshire Karen Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Hafenstraße 43, 25992, List, Germany aut NATIONALLICENCE 773 0- Ocean Dynamics Springer Berlin Heidelberg 65/7(2015-07-01), 951-968 1616-7341 65:7<951 2015 65 10236