Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Christoph Siewert"'
Autor:
Axel Seifert, Christoph Siewert
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 16, Iss 8, Pp n/a-n/a (2024)
Abstract Machine learning (ML) is used to build a bulk microphysical parameterization including ice processes. Simulations of the Lagrangian super‐particle model McSnow are used as training data. The ML performs a coarse‐graining of the particle
Externí odkaz:
https://doaj.org/article/cffd83fd213b48ee8740a9a4a8ade16b
Publikováno v:
Atmosphere, Vol 11, Iss 8, p 879 (2020)
The availability of high quality surface observations of precipitation and volume observations by polarimetric operational radars make it possible to constrain, evaluate, and validate numerical models with a wide variety of microphysical schemes. In
Externí odkaz:
https://doaj.org/article/46f79a5f657342a6bce6eff86c303e69
Publikováno v:
Atmosphere, Vol 11, Iss 5, p 542 (2020)
Secondary ice production via rime-splintering is considered to be an important process for rapid glaciation and high ice crystal numbers observed in mixed-phase convective clouds. An open question is how rime-splintering is triggered in the relativel
Externí odkaz:
https://doaj.org/article/9e54f8c553b249de91a7bf78ed7e6612
Autor:
Christoph Siewert, Róbert Bordás, Ulrike Wacker, Klaus D. Beheng, Rudie P.J. Kunnen, Matthias Meinke, Wolfgang Schröder, Dominique Thévenin
Publikováno v:
Meteorologische Zeitschrift, Vol 23, Iss 4, Pp 397-410 (2014)
This study deals with the comparison of numerically and experimentally determined collision kernels of water drops in air turbulence. The numerical and experimental setups are matched as closely as possible. However, due to the individual numerical a
Externí odkaz:
https://doaj.org/article/42c7198c59d7490c8e2f8c463ca8cf94
The dendritic growth zone (DGZ) plays a significant role in the production of precipitation and life cycle of clouds. Previous studies have shown that the DGZ is the region where the ice particle size first starts to increase through aggregation. Thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d1ee24a2c31231f4027f8a863571a30
https://doi.org/10.5194/egusphere-egu22-5159
https://doi.org/10.5194/egusphere-egu22-5159
Publikováno v:
Journal of Advances in Modeling Earth Systems. 11:712-731
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f3436b7c360f0a6f5d5a402a1376eb8
https://doi.org/10.1029/2018ms001519
https://doi.org/10.1029/2018ms001519
Publikováno v:
Atmosphere, Vol 11, Iss 879, p 879 (2020)
Atmosphere
Volume 11
Issue 8
Atmosphere
Volume 11
Issue 8
The availability of high quality surface observations of precipitation and volume observations by polarimetric operational radars make it possible to constrain, evaluate, and validate numerical models with a wide variety of microphysical schemes. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff3270a5dca1c4951f58315a8dbe13c1
https://www.mdpi.com/2073-4433/11/8/879
https://www.mdpi.com/2073-4433/11/8/879
Publikováno v:
Atmosphere, Vol 11, Iss 542, p 542 (2020)
Atmosphere
Volume 11
Issue 5
Atmosphere
Volume 11
Issue 5
Secondary ice production via rime-splintering is considered to be an important process for rapid glaciation and high ice crystal numbers observed in mixed-phase convective clouds. An open question is how rime-splintering is triggered in the relativel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcd2cfe4e7ec47132676887525538fc9
https://www.mdpi.com/2073-4433/11/5/542
https://www.mdpi.com/2073-4433/11/5/542
Publikováno v:
Journal of Advances in Modeling Earth Systems, Vol 12, Iss 8, Pp n/a-n/a (2020)
The files starting with "plate"/"column"/"needle"/"dendrite"/"Mix1"/Mix2" contain particle properties of individual simulated unrimed ice particles and model output from the Lagrangian Particle Model, which were analyzed in the publication "Ice Parti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cf8624c58fe11c60a13cfe75e9555884
https://doi.org/10.1002/essoar.10502128.1
https://doi.org/10.1002/essoar.10502128.1
Autor:
Lennart Schneiders, Christoph Siewert, Reinhold Kneer, Wolfgang Schröder, Tim Gronarz, Matthias Schnell
Publikováno v:
International Journal of Thermal Sciences. 111:116-128
In numerical simulations of coal combustion processes, particle-radiation interaction is often described by Mie-theory. An important modeling assumption in Mie-theory is the sphericity of the particles. The aim of this study is to investigate the val
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b0b340f32ce968ca072ba6fd7790633f
https://doi.org/10.1016/j.ijthermalsci.2016.08.014
https://doi.org/10.1016/j.ijthermalsci.2016.08.014