Articles | Volume 26, issue 2
https://doi.org/10.5194/hess-26-331-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-26-331-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
24 Jan 2022
Research article |
| 24 Jan 2022
| 24 Jan 2022
Seasonality of density currents induced by differential cooling
Eawag, Swiss Federal Institute of Aquatic Science and Technology,
Surface Waters – Research and Management, 6047 Kastanienbaum, Switzerland
Physics of Aquatic Systems Laboratory, École Polytechnique
Fédérale de Lausanne, 1015 Lausanne, Switzerland
Cintia L. Ramón
Eawag, Swiss Federal Institute of Aquatic Science and Technology,
Surface Waters – Research and Management, 6047 Kastanienbaum, Switzerland
Department of Civil Engineering, University of Granada, 18003 Granada, Spain
Hugo N. Ulloa
Physics of Aquatic Systems Laboratory, École Polytechnique
Fédérale de Lausanne, 1015 Lausanne, Switzerland
Department of Earth and Environmental Science, University of
Pennsylvania, Philadelphia, PA 19104-6316, USA
Alfred Wüest
Eawag, Swiss Federal Institute of Aquatic Science and Technology,
Surface Waters – Research and Management, 6047 Kastanienbaum, Switzerland
Physics of Aquatic Systems Laboratory, École Polytechnique
Fédérale de Lausanne, 1015 Lausanne, Switzerland
Damien Bouffard
Eawag, Swiss Federal Institute of Aquatic Science and Technology,
Surface Waters – Research and Management, 6047 Kastanienbaum, Switzerland
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Short summary
At night or during cold periods, the shallow littoral region of lakes cools faster than their deeper interior. This induces a cold downslope current that carries littoral waters offshore. From a 1-year-long database collected in a small temperate lake, we resolve the seasonality of this current and report its frequent occurrence from summer to winter. This study contributes to a better quantification of lateral exchange in lakes, with implications for the transport of dissolved compounds.
At night or during cold periods, the shallow littoral region of lakes cools faster than their...
