- ZFS-seminaria - Mailman AGH

Seminarium 6.05.2025
by Przemysław Wachniew 27 May '25

27 May '25

Dear All, Our next seminar will be given by Agnieszka Żaba. Title: Continuous integration with research notebooks: on maintaining reproducibility in atmospheric modeling Summary: First time outside Europe - what was she thinking? 🤷 Talks about sicence, snowy trails, unhealthy food (by choice), beautiful clouds and my presentation at the conference Place and date: Room 7, building D10, 6th May 2025 at 13:15.

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seminar on May 13 (1:15 pm, room D-10/7): Daniel Partridge / U. Exeter
by Sylwester Arabas 12 May '25

12 May '25

Dear All, This week (May 13, at 1:15 pm), we will host dr Daniel Partridge from University of Exeter (https://experts.exeter.ac.uk/26235-daniel-partridge). The seminar will take place in room 7, building D-10. Title: Novel sensitivity and evaluation frameworks for assessing the representation of aerosol and cloud microphysics in climate models ZFŚ seminar site & mailing list: https://zfs.agh.edu.pl/en/seminars Best regards, Sylwester Arabas -- Environmental Physics Group, AGH University of Kraków, Poland sylwester.arabas(a)agh.edu.pl | +48502254779 | https://zfs.agh.edu.pl/

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Tuesday seminar (4 Mar) at 13:00
by Przemysław Wachniew 03 Mar '25

03 Mar '25

Please note that the seminar was moved to 13:00 ------------------------------------------------------------ Don't miss the ZFŚ seminar on 4 March 2025 at 13:00! Emma Ware will talk on Particle coagulation numerical solvers: a framework for multi-model intercomparison in the cloud Event location: AGH building D10, room 7. -- Dr hab. inż. Przemysław Wachniew Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie Wydział Fizyki i Informatyki Stosowanej AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow, Poland Tel./fax: +48 12 617 5689 e-mail: wachniew(a)agh.edu.pl

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ZFS seminar
by Przemysław Wachniew 24 Feb '25

24 Feb '25

Don't miss the ZFŚ seminar on 4 March 2025 at 12:00! Emma Ware will talk on Particle coagulation numerical solvers: a framework for multi-model intercomparison in the cloud Event location: AGH building D10, room 7. -- Dr hab. inż. Przemysław Wachniew Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie Wydział Fizyki i Informatyki Stosowanej AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow, Poland Tel./fax: +48 12 617 5689 e-mail: wachniew(a)agh.edu.pl

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ZFS/EPG seminar 30.01.2025
by Przemysław Wachniew 23 Jan '25

23 Jan '25

Najbliższe seminarium Zespołu Fizyki Środowiska odbędzie 30 stycznia 2025 o godzinie 13:15 w pokoju 7, budynek D10. Next seminar of the Environmental Physics Group will take place on 30 January 2025 in room 7, building D10. Mgr inż. Paweł Jagoda (ZFS) will speak on: Mobile measurements of methane emission rates for O&G and waste sector -- Dr hab. inż. Przemysław Wachniew Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie Wydział Fizyki i Informatyki Stosowanej AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow, Poland Tel./fax: +48 12 617 5689 e-mail: wachniew(a)agh.edu.pl -- Dr hab. inż. Przemysław Wachniew Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie Wydział Fizyki i Informatyki Stosowanej AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow, Poland Tel./fax: +48 12 617 5689 e-mail: wachniew(a)agh.edu.pl

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seminar at AGH on Nov 21 (1:15 pm): prof. Wojciech Grabowski
by Sylwester Arabas 13 Nov '24

13 Nov '24

Dear All, Next week (Nov 21, at 1:15 pm), we will host prof. Wojciech Grabowski (NCAR / Univ. Warsaw) for the AGH Environmental Physics Group seminar. The talk will take place in lecture hall C ("pink"), building D-10, 3rd floor (address: Reymonta 19). Title: Growth of Cloud Droplets in a Turbulent Environment Abstract: Formation of precipitation in warm (ice-free) clouds involves both diffusional and collisional growth of cloud droplets. For both, cloud turbulence has been argued to play an important role. In this talk, I will review recent research in this area focusing on droplet diffusional growth in adiabatic (i.e., undiluted) cloud volumes. The focus on such regions is justified by observations and numerical modeling that show rain and drizzle formation typically taking place in undiluted and weakly diluted cloud volumes. At the same time, however, in-situ aircraft observations show that droplet spectra in such regions are often significantly wider than predicted by a simple adiabatic parcel ascent from the cloud base. Droplet spectral width is important for the onset of droplet gravitational collisions as well as for the transfer of solar radiation through clouds. The problem of spectral broadening due to cloud turbulence attracted significant attention of cloud physics and turbulence communities over the last couple decades. Theory and numerical simulations using idealized frameworks of stochastic models, direct numerical simulation (DNS), and scaled-up DNS have all been used to explain spectral broadening observed in natural clouds. Simple concepts related to the impact of turbulence on the diffusional growth of cloud droplets together with results of numerical simulations will be presented. Speaker: Prof. Wojciech W. Grabowski National Center for Atmospheric Research (NCAR), Boulder, CO, USA Institute of Geophysics, Faculty of Physics, University of Warsaw https://scholar.google.com/citations?user=WVjmW3wAAAAJ ZFŚ seminar site & mailing list: https://zfs.agh.edu.pl/en/seminars Best regards, Sylwester Arabas -- Environmental Physics Group, AGH University of Kraków, Poland sylwester.arabas(a)agh.edu.pl | +48502254779 | https://zfs.agh.edu.pl/

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korekta: seminarium ZFŚ 24 X 2024
by Przemysław Wachniew 18 Oct '24

18 Oct '24

Oczywiście seminarium odbędzie się nie 17, a 24 października. -- Dr hab. inż. Przemysław Wachniew Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie Wydział Fizyki i Informatyki Stosowanej AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow, Poland Tel./fax: +48 12 617 5689 e-mail: wachniew(a)agh.edu.pl

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seminarium ZFŚ 24 X 2024
by Przemysław Wachniew 18 Oct '24

18 Oct '24

Zapraszam na seminarium Zespołu Fizyki Środowiska, które odbędzie się 17 października 2024 o godzinie 13:15 w budynku WFiIS AGH w Krakowie, ul. Reymonta 19, pokój 7. Dr Alina Jasek-Kamińska (IMGW-PIB/AGH) zaprezentuje temat: September flood in Central Europe from a weather forecaster's perspective Przemysław Wachniew -- Dr hab. inż. Przemysław Wachniew Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie Wydział Fizyki i Informatyki Stosowanej AGH University of Science and Technology Faculty of Physics and Applied Computer Science Krakow, Poland Tel./fax: +48 12 617 5689 e-mail: wachniew(a)agh.edu.pl

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Faculty seminar on Fri Oct 11 at 12:15
by Sylwester Arabas 07 Oct '24

07 Oct '24

Dear All, This Friday, as a part of the Faculty Seminar Series, there will be a talk by Obin Sturm visiting AGH from University of Southern California. Title: Guaranteeing physically consistent hard constraints for machine learning models Location: lecture hall A, building D-10 Time: 12:15 (Oct 11) Abstract: https://www.fis.agh.edu.pl/en/events/detail/s/seminarium-wydzialu-fizyki-i-… Obin's bio: Obin Sturm is a third-year PhD student in the Atmospheric Composition and Earth Data Science group at the University of Southern California. Formerly, Scientific Programmer at the NASA Goddard Space Flight Center. His research explores atmospheric chemistry and physics through computational techniques ranging from graph theory, particle-based modeling, and machine learning of fine scale processes to global forecasting. Best, Sylwester -- Environmental Physics Group, AGH University of Kraków, Poland sylwester.arabas(a)agh.edu.pl | +48502254779 | https://zfs.agh.edu.pl/

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Friday 10 am seminar by Tim Lüttmer (uni-mainz.de), room 7 D-10
by Sylwester Arabas 18 Sep '24

18 Sep '24

Dear Team, On Friday, Sep 20 at 10 am, we will host Tim Lüttmer from Johannes Gutenberg University of Mainz for our group's seminar. Title: Ice Formation Pathways In Warm Conveyor Belts Abstract below. Room 7, D-10. Best, Sylwester Abstract: Warm Conveyor Belts (WCB) lead to formation of horizontally wide spread Cirrus clouds in the upper troposphere. However, the contribution of different ice formation processes and the resulting micro- and macrophysical properties of the Cirrus ,e.g., their radiative effects are still poorly understood. We want to especially address the research question of in-situ vs. liquid origin ice formation. Common microphysics bulk schemes only consider a single ice class which includes sources from multiple formation mechanisms. We developed and implemented a two-moment microphysics scheme in the atmosphere model ICON that distinguishes between different ice modes of origin including homogeneous nucleation, deposition freezing, immersion freezing, homogeneous freezing of water droplets and secondary ice production. Each ice mode is described by its own size distribution, prognostic moments and unique formation mechanism while still interacting with all other ice modes and microphysical classes like cloud droplets, rain and rimed cloud particles. Using this microphysics scheme we can directly determine the contribution of the various icef ormation mechanisms to the total ice content. The distinction between ice modes also allows a novel classification of cirrus origin based on their mircophysical composition without needing to consider the history of the cloud. Using this method we investigate the competition of in-situ and liquid origin cirrus as well as homogeneous and heterogeneous ice nucleation with regards to environmental conditions and choice of parametrizations. We performed sensitivity simulations for choice of various heterogeneous nucleation parametrizations and for an ensemble of perturbations in the number concentrations of ice nucleating particles. Additionally we simulated 10 WCB cases to investigate the impact of different environmental conditions on the ice formation pathways. Key findings are (1) Sedimentation significantly affects the in-situ vs liquid origin classification, (2) Characteristic properties of in-situ and liquid origin cirrus are sensitive to WCB ascent times, (3) Choice of parametrization strongly affects the competition between homogeneous and heterogeneous nucleation, but not between in-situ and liquid ice formation pathways. -- Environmental Physics Group, AGH University of Kraków, Poland sylwester.arabas(a)agh.edu.pl | +48502254779 | https://slayoo.github.io/

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2025

2024

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