Understanding the Dynamics of Denitrification with high-resolution Simulations
- 1TU Clausthal, Institute for Mathematics, Scientific Computing, Clausthal-Zellerfeld, Germany (olaf.ippisch@tu-clausthal.de)
- 2Norwegian University of Life Sciences, Faculty for Environmental Sciences and Natural Resource Management, Ås, Norway
- 3Helmholtz-Centre for Environmental Research - UFZ , Department Soil System Science, Halle, Germany
- 4Leibniz Universität Hannover, Institute of Microbiology, Hannover, Germany
Denitrification in unsaturated soils is widely assumed to be a result a result of the formation of so-called hot spots. However, this is a hypothesis, which is hard to test experimentally. Furthermore a better understanding of the microscale dynamics might be very helpful to derive better models at the macroscale.
Experiments have been conducted, where artificial aggregates from sintered glas have been inocculated with microorganisms and been placed in environments with different oxygen availabilities. Very high-resolution simulations are conducted to reproduce the dynamic of the generation of nitric and nitrous oxide based on a model of microbial growth parametrised with experimental data from batch experiments. The simulations allow a detailed analysis of the local and temporal dynamics of denitrification inside the aggregates.
How to cite: Ippisch, O., Zawallich, J., Dörsch, P., Schlüter, S., Horn, M. A., and Vogel, H.-J.: Understanding the Dynamics of Denitrification with high-resolution Simulations, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-19467, https://doi.org/10.5194/egusphere-egu2020-19467, 2020.
