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dc.contributor.authorRamón Casañas, Cintia Luz 
dc.contributor.authorDoda, Tomy
dc.identifier.citationRamón, C. L... [et al.] (2022). Flushing the lake littoral region: The interaction of differential cooling and mild winds. Water Resources Research, 58, e2021WR030943. [https://doi. org/10.1029/2021WR030943]es_ES
dc.description.abstractThe interaction of a uniform cooling rate at the lake surface with sloping bathymetry efficiently drives cross-shore water exchanges between the shallow littoral and deep interior regions. The faster cooling rate of the shallows results in the formation of density-driven currents, known as thermal siphons, that flow downslope until they intrude horizontally at the base of the surface mixed layer. Existing parameterizations of the resulting buoyancy-driven cross-shore transport assume calm wind conditions, which are rarely observed in lakes and thereby restrict their applicability. Here, we examine how moderate winds (≲5 m s −1) affect this convective cross-shore transport. We derive simple analytical solutions that we further test against realistic three-dimensional numerical hydrodynamic simulations of an enclosed stratified basin subject to uniform and steady surface cooling rate and cross-shore winds. We show cross-shore winds modify the convective circulation, stopping or even reversing it in the upwind littoral region and enhancing the cross-shore exchange in the downwind region. The analytical parameterization satisfactorily predicted the magnitude of the simulated offshore unit-width discharges in the upwind and downwind littoral regions. Our scaling expands the previous formulation to a regime where both wind and buoyancy forces drive cross-shore discharges of similar magnitude. This range is defined by the non-dimensional Monin-Obukhov length scale, χMO: 0.1 ≲ χMO ≲ 0.5. The information needed to evaluate the scaling formula can be readily obtained from a traditional set of in situ observations.es_ES
dc.description.sponsorshipSwiss National Science Foundation (SNSF) European Commission 175919es_ES
dc.description.sponsorshipETH-Bereich Forschungsanstaltenes_ES
dc.publisherAmerican Geophysical Uniones_ES
dc.rightsAtribución-NoComercial 4.0 Internacional*
dc.titleFlushing the Lake Littoral Region: The Interaction of Differential Cooling and Mild Windses_ES

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Atribución-NoComercial 4.0 Internacional
Except where otherwise noted, this item's license is described as Atribución-NoComercial 4.0 Internacional