Tributaries affect the thermal response of lakes to climate change

Råman Vinnå, Love; Wüest, Alfred; Zappa, Massimiliano; Fink, Gabriel; Bouffard, Damien

doi:https://doi.org/10.5194/hess-22-31-2018

Articles | Volume 22, issue 1

https://doi.org/10.5194/hess-22-31-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-22-31-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 1

Research article

|

04 Jan 2018

Research article |

| 04 Jan 2018

Tributaries affect the thermal response of lakes to climate change

Love Råman Vinnå, Alfred Wüest, Massimiliano Zappa, Gabriel Fink, and Damien Bouffard

Data sets

Canton of Bern lake monitoring data GBL/AWA http://www.bve.be.ch/bve/de/ index/wasser/wasser/messdaten/Seen.html

Meteorological data MeteoSwiss https://gate.meteoswiss.ch/ idaweb/login.do

Hydrological data and forecasts Federal Office for the Environment (FOEN) http://hydrodaten.admin.ch

Future river discharge predictions Federal Office for the Environment (FOEN) http://www.bafu.admin.ch/umwelt/index.html?lang=en

DHM25 model bathymetry data Swiss Federal Office of Topography (SwissTopo) https://shop.swisstopo.admin.ch/ en/products/height_models/dhm25

Short summary

Responses of inland waters to climate change vary on global and regional scales. Shifts in river discharge regimes act as positive and negative feedbacks in influencing water temperature. The extent of this effect on warming is controlled by the change in river discharge and lake hydraulic residence time. A shift of deep penetrating river intrusions from summer towards winter can potentially counteract the otherwise negative climate effects on deep-water oxygen content.