LéXPLORE Letters No. 60
This newsletter was generated on the 03-12-2024.
The figures below are showing data for the period 12-11-2024 to 26-11-2024.
Until today, Thetis sampled 4796 depth profiles on Lake Geneva. In this Newsletter we show 20 profiles, so just 0.42% of the recorded data. The complete data set is available at Datalakes.
Data highlights of this issue
The story of this newsletter has to be the record waves we recorded. The legacy record in that data set was at first shattered on November 20th, with a measured wave height of 1.53 meter, just for it to be shattered itself a day later on November 21st with a recorded wave height of 1.61 meter!
The storm was not only bringing strong winds and waves, but brought with it plenty of precipitation, which turned into heavy snowfall in the mountains around, even down to the shores of Lake Geneva. The strong wind forcing triggered substantial lake mixing, with heat energy and oxygen being pumped from the lake surface down to deeper lake layers, as visible in the temperature anomaly (creating anomalies of up to +2.5 K between 40 and 50 meters depth) and oxygen time series.
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 %
Chlorophyll A in μg/L
Chlorophyll A Anomaly on daily resolution with respect to to the available daily climatology from Thetis so far in μg/L
Backscattering of light 700 nm in 1.e-2 m-1, representing zooplankton or larger particles in the water
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
This work is licensed under a
Creative Commons
Attribution-NonCommercial-ShareAlike 4.0 International
License.