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Atmospheric Boundary-Layer processes on a variety of temporal and spatial scales strongly influence weather, air quality and climate. These processes include atmospheric turbulence, atmosphere-soil-vegetation interactions, gravity waves, boundary layer interactions with dry and moist convection, mesoscale flows, et cetera. These processes should be well-understood to enable accurate and skilled weather and air quality forecasting, as well as reliable climate model and scenario studies to serve society with high quality weather and climate information.

This session welcomes contributions on research into the understanding of boundary-layer processes and turbulence from either a conceptual, or modelling or observational perspective, their role and interactions and finally their implementation in atmospheric modelling.
Papers dealing with the following topics are invited:
• Theoretical and experimental studies of the turbulence-closure problem with emphasis on very stable stratification and convection, accounting for interactions between the mean flow, turbulence, internal waves and large-scale self-organized structures
• Boundary-layer clouds and marine, cloud-topped boundary layers: physics and parameterization within NWP and climate models
• Orographic effects: form drag, wave drag and flow blocking, gravity waves
• Challenges on the surface exchange processes, flux aggregation in atmospheric boundary layers over heterogeneous terrain
• Representation of boundary layers in atmospheric models
• Organization of deep convection across differing atmospheric scales
• Large-eddy simulation and direct numerical simulation of turbulent flows.

Conveners: Sergej Zilitinkevich, Gert-Jan Steeneveld | Co-Convener: Bert Holtslag
| Thu, 12 Sep, 16:00–18:00|Oticon Hall, Fri, 13 Sep, 09:00–10:30, 11:30–12:30|Oticon Hall
| Attendance Fri, 13 Sep, 10:30–11:30 | Display Wed, 11 Sep, 13:30–Fri, 13 Sep, 13:30|Sports Hall
Display time: Wednesday, 11 September 2019 13:30–Friday, 13 September 13:30

Attendance time: Friday, 13 September 2019, 10:30–11:30 | Sports Hall

Chairperson: 16886
P118 |
Peter Huszár, Jan Karlický, Jana Ďoubalová, Michal Belda, Tereza Nováková, Kateřina Šindelářová, and Tomáš Halenka
Chairperson: 16886
P119 |
Son Truong, Francisco Lang, Yi Huang, Steven Siems, and Michael Manton
Chairperson: 16886
P120 |
Jae-Sik Min, Moon-soo Park, Minsoo Kang, and Jung-Hoon Chae
Chairperson: 16886
Chairperson: 16886
Chairperson: 16886
P123 |
Evgeny Kadantsev, Evgeny Mortikov, Andrey Glazunov, and Sergej Zilitinkevich
Chairperson: 16886
P124 |
Andrey Debolskiy, Evgeny Mortikov, Andrey Glazunov, Evgeny Kadantsev, and Sergej Zilitinkevich
Chairperson: 16886
P125 |
Evgeny Mortikov, Andrey Glazunov, Grigory Zasko, and Yuri Nechepurenko
Chairperson: 16886
Chairperson: 16886
P127 |
So-Young Kim, Song-You Hong, Young Cheol Kwon, and Yong Hee Lee

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