Continuous in situ measurement of dissolved methane in Lake Kivu using a membrane inlet laser spectrometer

Grilli, Roberto; Darchambeau, François; Chappellaz, Jérôme; Mugisha, Ange; Triest, Jack; Umutoni, Augusta

doi:https://doi.org/10.5194/gi-9-141-2020

Articles | Volume 9, issue 1

https://doi.org/10.5194/gi-9-141-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gi-9-141-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 9, issue 1

Research article

|

20 Apr 2020

Research article |

| 20 Apr 2020

Continuous in situ measurement of dissolved methane in Lake Kivu using a membrane inlet laser spectrometer

Roberto Grilli, François Darchambeau, Jérôme Chappellaz, Ange Mugisha, Jack Triest, and Augusta Umutoni

Data sets

Continuous in situ measurement of dissolved methane in Lake Kivu using a membrane inlet laser spectrometer R. Grilli https://doi.org/10.17632/gzvgryw3s5.1

Short summary

We report the results from the deployment of a newly developed in situ sensor for dissolved gas measurements. Its adaptation to high gas concentrations and dissolved gas pressures was proven. The campaign leads to a first continuous profile of methane on the first 150 m and allowed us to compare the data with previous measurements. The fast response of the instrument makes this technique a good candidate for regular monitoring of those type of lakes, for anticipating disastrous gas eruptions.