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Kohlendioxid-Messungen in einem Durchfluß-Meßsystem mit einem neu entwickelten CO2-Sensor am Beispiel eines Hartwassersees (Willersinnweiher, Ludwigshafen am Rhein) |
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| Authors: | Johannes Schmid Wolfram Oelßner Gerd Schukraft |
| Institution: | 1Geographisches Institut der Universität Heidelberg, Labor für Geomorphologie und Geoökologie, Heidelberg, Germany 2Kurt-Schwabe-Institut für Mess- und Sensortechnik e.V. Meinsberg, Ziegra-Knobelsdorf, Germany |
| Abstract: | The concentrations of free dissolved carbon dioxide in lake water were measured with a newly developed CO2 sensor, which was installed in a through-flow measurement system. The results of measurements demonstrate the CO2 dynamics in lake Willersinnweiher. The CO2 concentrations showed a correlation with the oxidation of CH4 in the metalimnion and caused shifts in the carbonate system, thus affecting the autochthonous precipitation and dissolution of calcite. From the results of measurement appears that the CO2 sensor is capable of very exact measurements of dissolved free CO2 in lake water. At the same time, the parameter is easily determined in the field without large expenditures. |
| Keywords: | CO2 sensor CO2 dynamics methane oxidation calcite precipitation |
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