LéXPLORE Letters No. 34
This newsletter was generated on the 05-12-2023.
The figures below are showing data for the period 14-11-2023 to 28-11-2023.
Until today, Thetis sampled 4020 depth profiles on Lake Geneva. In this Newsletter we show 28 profiles, so just 0.7% of the recorded data. The complete data set is available at Datalakes.
Data highlights of this issue
Looking at the data for the second half of November, we can identify quite a few storms and fronts passing by our platform, keeping the air temperature signal very non-diurnal. The heavy rain event just at the beginning of this period decreases the salinity of the water substantially, and windy episodes shuffle oxygen, salinity and temperature up and down the water column.
Overall, the lake is slowly cooling down, as expected for this season. As windy events shuffled energy deep into the lake, we see positive water temperature anomalies appear in the bottom half of our data column, with negative water temperature anomalies governing the top half of the measured water column, meaning surface waters this November were slightly cooler than in the years before.
What is displayed
Data from the Thetis profiler:
Water Temperature in °Celsius
Water Temperature Anomaly on daily resolution with respect to to the available daily climatology from Thetis so far in Kelvin
Dissolved Oxygen mg/L
Oxygen Saturation in %
Salinity mg/L
Data from the automatic weather station:
Air Temperature in °Celsius
Wind Speed in m/s
Precipitation in mm
Data from the wave buoy:
- Wave height in decimeter
License
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Creative Commons
Attribution-NonCommercial-ShareAlike 4.0 International
License.