Imprint of gravity waves in the vertical velocity field in the regional model stratosphere.

Unresolved processes in climate models present a major source of uncertainty in future climate projections. Internal gravity waves (GWs) exist on a variety of scales, but typically a significant portion of the GW spectrum remains unresolved in global weather prediction or climate models and the GW impacts need to be parameterized. Our knowledge on GW impacts ranging from regionality of precipitation to the evolution of the ozone layer has been so-far based on their predominantly parameterized effects. This workshop will get together experts on GW dynamics, observations, modelling and climate effects to discuss recent developments and frame future research avenues.


Faculty of Mathematics and Physics (campus Trója, lecture room T1), Charles University, Holešovičkách中 2, プラハ. Use the main entrance to get to T1, which is in direct vicinity.


The program for individual days may be changed based on the actual weather conditions. Presenters shall allocate around 1/3 of their slot to the discussion.

Monday, 28.08.2023

  • 10:00 Registration and opening word (Petr Pišoft and Petr Šácha)
  • 10:15-11:00 Claudia StephanHow white is the sky?
  • 11:05-11:35 Zuzana ProcházkováMethods for estimation of the resolved GW drag and the first climatology of local drags above major hotspots.
  • Coffee break.
  • 11:45-12:30 Corwin WrightSampling super-high-resolution atmospheric models with satellite observational filters to assess their gravity wave content.
  • Lunch (cafeteria).
  • 13:30-14:00 Aleš KuchařHow do long-term changes in mesospheric dynamics relate to GWs?
  • Coffee break.
  • 14:10-14:55 Christoph JacobiLong-term trends of GW proxies from LF and MR observations..
  • 15:00-15:30 Anahí Villalba PradasHigh-resolution simulations of the gravity wave field during typhoon and stratosphere-troposphere exchange events over Eastern Asia.
  • 15:30- Walk through the city + open discussions (a walk along the river towards Letenská pláň (approx. 5km)).
  • 18:30 Conference dinnerRestaurant Ztracený ráj (Čechova 239/9, 170 00 プラハ 7)
  • Optionalfrom 20:30 live music at the nearby International Festival of Contemporary Circus and Theatre

Tuesday, 29.08.2023

  • 10:00-10:30 Dominika HájkováDynamical effect of the parameterized orographic gravity wave drag in CMIP6 models.
  • 10:35-11:20 Ulrich AchatzTowards a next-generation parameterization of gravity waves: An overview.
  • Coffee break.
  • 11:30-12:15 Georg Sebastian VölkerTowards a next-generation GW parameterization: Effects of horizontal propagation.
  • Lunch (cafeteria).
  • 13:30-14:00 Radek ZajíčekOverlying Brewer-Dobson circulation and atmospheric structure changes with increasing anthropogenic emissions.
  • Coffee break.
  • 14:15-14:45 Petr ŠáchaFrom the downward control principle to the equatorial control of extratropical momentum fluxes.
  • Final discussion and remarks.
  • 15:30-18:30 Walk through the city + open discussions (a trip to The National Memorial on the Vítkov Hill (approx. 3km of walking distance).
  • Conference dinnerPardubická pivnice u Járy (Dalimilova 1, 130 00 Praha 3-Žižkov).

Wednesday, 30.08.2023

Excursions, open discussions + individual meetings.

How to get there?

For details regarding public transportation, please see

Excellent connection by train (Nádraží Holešovice) or by car (free parking in the campus).