Auflistung Geophysik, Extraterrestische Forschung nach Mitwirkenden "Seifert, Axel"
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One Step at a Time: How Model Time Step Significantly Affects Convection-Permitting Simulations
Barrett, Andrew I.; Wellmann, Constanze; Seifert, Axel; Hoose, Corinna; Vogel, Bernhard; Kunz, Michael (Journal of Advances in Modeling Earth Systems, 2019)We show that there is a strong sensitivity of cloud microphysics to model time step in idealized convection-permitting simulations using the COnsortium for Small-scale MOdeling model. Specifically, we found a 53% reduction ... -
Potential and Limitations of Machine Learning for Modeling Warm‐Rain Cloud Microphysical Processes
The use of machine learning based on neural networks for cloud microphysical parameterizations is investigated. As an example, we use the warm‐rain formation by collision‐coalescence, that is, the parameterization of ... -
Representation of Model Error in Convective-Scale Data Assimilation: Additive Noise Based on Model Truncation Error
Zeng, Yuefei; Janjic, Tijana; Sommer, Matthias; de Lozar, Alberto; Blahak, Ulrich; Seifert, Axel (Journal of Advances in Modeling Earth Systems, 2019)To account for model error on multiple scales in convective-scale data assimilation, we incorporate the small-scale additive noise based on random samples of model truncation error and combine it with the large-scale ...