LEXPLORE PLATFORM

LéXPLORE Letters No. 40

This newsletter was generated on the 27-02-2024.

The figures below are showing data for the period 06-02-2024 to 20-02-2024.

Until today, Thetis sampled 4134 depth profiles on Lake Geneva. In this Newsletter we show 30 profiles, so just 0.73% of the recorded data. The complete data set is available at Datalakes.

Data highlights of this issue

The very mild air temperatures for this February 2024, as recorded by our automatic weather station among many sensors in Switzerland, are also perfectly reflected in the water temperature anomalies recorded by Thetis. We can identify positive water temperature anomalies throughout the whole water column with up to +0.5 Kelvin at the surface of the lake.

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

Authorship and further information

This newsletter is created by EPFL, specifically Martin Wegmann.

For more information about LéXPLORE, contacting us and possibilities to visit the platform: lexplore.info

If you want to know more about the Chlorophyll distribution across Lake Geneva, have a look at the satellite data map by our colleagues at CIPEL.

If you want to know more about the water temperature distribution across Lake Geneva, have a look at the lake reanalysis and forecasts by our colleagues at EAWAG.

If you want to use figures from the LéXPLORE Letters, you can use the following citation:

EPFL, Limnology Center 2024: LéXPLORE Letters, 40, https://lexplore.info/wp-content/uploads/2024/02/lexplore-letters-2024-02-27.html