Lake Onego, one of the largest European lake, is covered by ice during 6 months
Check our special edition “Life under ice in Lake Onego (Russia) – an interdisciplinary winter limnology study “, published in Inland Waters in 2019 (Volume 9, Issue 2).
Ice camp in 2017 Collecting water samples for gas and plankton analyses Preparing sediment samples to analyze microbial communities Ice camp in 2015 Our favourite mode of transport Setting a mooring for CO2 monitoring Retrieving sediment cores Preparing holes to collect sediment cores Filtering water for microbial analyses Launching a drone to collect hyperspectral images of the ice ECOLOG boat for expeditions in June Preparing water samples for CO2 analysis along a transect Getting prepared for the next sampling site Collecting water Ice camp in 2017 Collecting water samples for gas and plankton analyses Preparing sediment samples to analyze microbial communities Ice camp in 2015 Our favourite mode of transport Setting a mooring for CO2 monitoring Retrieving sediment cores Preparing holes to collect sediment cores Filtering water for microbial analyses Launching a drone to collect hyperspectral images of the ice ECOLOG boat for expeditions in June Preparing water samples for CO2 analysis along a transect Getting prepared for the next sampling site Collecting water
The objective of this project was to investigate under-ice processes in Lake Onego during the ice-covered period:
Under-ice convection and modelling
Automated underwater vehicles to determine the horizontal structure of convection cells
Effect of convective mixing on phytoplankton
Efficiency of the trophic level: phyto/zooplankton and microorganisms under the ice
Accumulation and release of greenhouse gases
History of land-use changes in the catchment area by studying sediment
Characterization of the ice cover using remote sensing from satellites and drones
Scientific exchanges and joint publications with our Russian partners
This project was a collaboration between different institutions from Switzerland (EPFL, Eawag , UniGE ), Russia (NWPI , IL , AARI , NIERSC ) and France (INRA-Thonon-les-Bains, LEGOS ).
The Limnology Center organized seven field expeditions in close collaboration with the Northern Water Problems Institute. Check our blog for our experiences in March and June 2016.