Mission on Lake Geneva
© 2024 EPFL
New set-up to optimise deployment conditions for our #SubOcean laser instruments
Our engineer, Sébastien Lavanchy, has been working hard over the last few months to optimise the deployment conditions for our #SubOcean laser instruments. Yesterday, we had ideal conditions on Lake Geneva to test the new set-up he designed, on board the LéXPLORE platform.
With Sébastien and our postdoc Santona Khatun, we carried out several deployments at depth to test the new winch fitted with an electric cable (to communicate in real time with the instrument), the new CTD probe, the electronic assembly to communicate all the data from the surface instruments in real time, and a sonar to locate the sedimentary bed, in addition to the aquatic GPS for three-dimensional positioning.
The mission was a success, with some fine profiles to show for it. The icing on the cake was the magnificent colours at sunset on the lake, with the absence of wind providing the conditions for an aquatic mirror!
So everything is looking good for Santona to be able to deploy the system on several Swiss lakes over the next few months, enabling us to characterise the flows of nitrous oxide #N2O and the mechanisms inside the lakes that lead to the production or consumption of this greenhouse gas and control the flows with the atmosphere.
Many thanks to Guillaume Cunillera and Jeremy Keller for their logistical help with the LéXPLORE platform.
With Sébastien and our postdoc Santona Khatun, we carried out several deployments at depth to test the new winch fitted with an electric cable (to communicate in real time with the instrument), the new CTD probe, the electronic assembly to communicate all the data from the surface instruments in real time, and a sonar to locate the sedimentary bed, in addition to the aquatic GPS for three-dimensional positioning.
The mission was a success, with some fine profiles to show for it. The icing on the cake was the magnificent colours at sunset on the lake, with the absence of wind providing the conditions for an aquatic mirror!
So everything is looking good for Santona to be able to deploy the system on several Swiss lakes over the next few months, enabling us to characterise the flows of nitrous oxide #N2O and the mechanisms inside the lakes that lead to the production or consumption of this greenhouse gas and control the flows with the atmosphere.
Many thanks to Guillaume Cunillera and Jeremy Keller for their logistical help with the LéXPLORE platform.
