Workshop: Stratospheric predictability and impact on the troposphere
| Monday, 18 November | |||
| → |
Registration and coffee
|
45m | |
| → |
Welcome and opening
Speaker:
Nils Wedi
(ECMWF)
|
ECMWF
Reading
|
15m |
|
Session 1 : Introductory / motivating talks
Chair:
Nils Wedi
(ECMWF)
|
|||
| → |
Importance of the stratosphere for extended-range prediction
Speaker:
Ted Shepherd
(University of Reading)
|
ECMWF
Reading
|
45m |
| → |
The representation of stratosphere-troposphere coupling in S2S models
Speaker:
Amy Butler
(CIRES/NOAA)
|
ECMWF
Reading
|
45m |
|
Session 2 : Stratosphere-troposphere coupling in sub-seasonal to seasonal modes
Chair:
Tim Stockdale
(ECMWF)
|
|||
| → |
A signal and noise analysis of stratosphere-troposphere coupling in sub-seasonal prediction models
Speaker:
Andrew Charlton-Perez
(University of Reading)
|
ECMWF
Reading
|
30m |
| → |
Coffee break
|
Weather Room; Lobby
Weather Room; Lobby |
30m |
| → |
The importance of stratospheric initial conditions for winter North Atlantic Oscillation predictability
Speaker:
Christopher O'Reilly
(University of Oxford)
|
ECMWF
Reading
|
30m |
| → |
Subseasonal-to-seasonal predictability of the Southern Hemisphere eddy-driven jet during austral spring and early summer
Speaker:
Nick Byrne
(University of Reading)
|
ECMWF
Reading
|
30m |
| → |
On the dynamics of stratosphere-troposphere planetary-wave coupling
Speaker:
Etienne Dunn-Sigouin
(Geophysical Institute, University of Bergen and Bjerknes Centre for Climate Research)
|
ECMWF
Reading
|
30m |
| → |
Subseasonal Forecasting of Sudden Stratospheric Warming Events and their Influence on the Troposphere in the NASA-GEOS-S2S Forecast System
Speaker:
Joan Alexander
(NWRA)
|
ECMWF
Reading
|
30m |
| → |
Ice breaker, drinks and posters
|
1h 30m | |
| Tuesday, 19 November | |||
|
Session 2 (cont.) : Stratosphere-troposphere coupling in sub-seasonal to seasonal modes
Chair:
Inna Polichtchouk
(ECMWF)
|
|||
| → |
Stratospheric impact on surface climate on seasonal time scales
Speaker:
Steven Hardiman
(Met Office)
|
ECMWF
Reading
|
30m |
|
Session 3 : Polar vortex : predictability and downward influence
Chair:
Inna Polichtchouk
(ECMWF)
|
|||
| → |
The dynamics and predictability of sudden stratospheric warmings and their surface impacts
Speaker:
Daniela Domeisen
(ETH Zurich)
|
ECMWF
Reading
|
30m |
| → |
Causes and fixes for stratospheric temperature biases in IFS and their impact on predictability
Speaker:
Inna Polichtchouk
(ECMWF)
|
ECMWF
Reading
|
30m |
| → |
Coffee break
|
Weather Room; Lobby
Weather Room; Lobby |
30m |
| → |
Sudden stratospheric warmings in reanalyses and their tropospheric fingerprint
Speaker:
Blanca Ayarzagüena
(Universidad Complutense de Madrid)
|
ECMWF
Reading
|
30m |
| → |
The impact of Arctic sea-ice anomalies on the stratospheric polar vortex
Speaker:
William Seviour
(University of Bristol)
|
ECMWF
Reading
|
30m |
| → |
Panel discussion with Joan Alexander, Amy Butler, Ted Shepherd and Günther Zängl
Chair:
Nils Wedi
(ECMWF)
|
1h | |
| → |
Lunch
|
ECMWF
Reading
|
1h |
| → |
Poster session
|
1h 30m | |
| → |
Coffee break
|
Weather Room; Lobby
Weather Room; Lobby |
30m |
|
Session 3 (cont.) : Polar vortex : predictability and downward influence
|
|||
| → |
What influences the timing of Sudden Stratospheric Warmings?
Speaker:
Lesley Gray
(NCAS / University of Oxford)
|
ECMWF
Reading
|
30m |
|
Session 4 : Trace gases, ozone, Brewer-Dobson circulation
Chair:
Robin Hogan
(ECMWF)
|
|||
| → |
Remote presentation: Future trends in stratosphere-to-troposphere transport in CCMI models
Speaker:
Marta Abalos
(Universidad Complutense de Madrid)
|
ECMWF
Reading
|
30m |
| → |
Remote presentation: Trace Gas Transport in the Stratosphere: Opportunities and Challenges
Speaker:
Edwin Gerber
(Courant Institute, New York University)
|
ECMWF
Reading
|
30m |
| → |
Chemical, radiative and dynamics interactions in the stratosphere using a hierarchy of models
Speaker:
Alison Ming
(University of Cambridge)
|
ECMWF
Reading
|
30m |
| Wednesday, 20 November | |||
|
Session 5 : Model development, impact of model biases
Chair:
Michail Diamantakis
(ECMWF)
|
|||
| → |
Recent work at DWD to improve model dynamics and physics in the stratosphere and mesosphere
Speaker:
Günther Zängl
(Deutscher Wetterdienst)
|
ECMWF
Reading
|
30m |
| → |
A new approach to linear ozone modelling
Speaker:
Tim Stockdale
(ECMWF)
|
ECMWF
Reading
|
30m |
| → |
Dependence of simulated atmospheric teleconnections on biases in stratospheric circulation
Speaker:
Alexey Karpechko
(Finnish Meteorological Institute)
|
ECMWF
Reading
|
30m |
| → |
Coffee break
|
Weather Room; Lobby
Weather Room; Lobby |
30m |
| → |
Dynamics of Sudden Stratospheric Warmings
Speaker:
Presenting on behalf of Thomas Birner (University of Munich): Álvaro de la Cámara
(Universidad Complutense de Madrid)
|
ECMWF
Reading
|
30m |
| → |
Stratospheric data assimilation at ECMWF
Speaker:
Elias Holm
(ECMWF)
|
ECMWF
Reading
|
30m |
|
Session 6 : Diagnostics
Chair:
Irina Sandu
(ECMWF)
|
|||
| → |
How does the Troposphere Amplify Stratospheric Variability?
Speaker:
Mark Baldwin
(University of Exeter)
|
ECMWF
Reading
|
30m |
| → |
Using causal discovery algorithms to evaluate troposphere-stratosphere linkages in reanalyses and modelling experiments
Speaker:
Marlene Kretschmer
(PIK)
|
ECMWF
Reading
|
30m |
| → |
Lunch break
|
ECMWF
Reading
|
1h |
| → |
Remote presentation: Propagating annular modes
Speaker:
Aditi Sheshadri
(Stanford University)
|
ECMWF
Reading
|
30m |
| → |
Investigation of ECMWF IFS Arctic winter 2015/16 lowermost stratosphere moist bias using airborne limb-imaging infrared observations
Speaker:
Wolfgang Woiwode
(Karlsruhe Institute of Technology, IMK-ASF)
|
ECMWF
Reading
|
30m |
| → |
Working groups (with refreshments available in the Weather Room and lobby 15:30-16:00)
|
2h 30m | |
| → |
Workshop dinner at Côte Brasserie
|
2h | |
| Thursday, 21 November | |||
|
Session 7 : Gravity waves in observations and models
Chair:
Peter Bechtold
(ECMWF)
|
|||
| → |
Global gravity wave distributions observed from satellites and resolved in the ECMWF-IFS
Speaker:
Peter Preusse
(Forschungszentrum Juelich)
|
ECMWF
Reading
|
30m |
| → |
Stratospheric waves over the Southern Andes
Speaker:
Andreas Dörnbrack
(DLR Oberpfaffenhofen, Institute of Atmospheric Physics)
|
ECMWF
Reading
|
30m |
| → |
Beyond Traditional Limits of Gravity-Wave Parameterizations: Transient Wave-Mean-Flow Interactions and Unbalanced Mean Flows
Speaker:
Ulrich Achatz
(Goethe Universität Frankfurt)
|
ECMWF
Reading
|
30m |
| → |
Coffee break
|
Weather Room; Lobby
Weather Room; Lobby |
45m |
| → |
How does knowledge of atmospheric gravity waves guide their parametrizations?
Speaker:
Riwal Plougonven
(LMD/IPSL, Ecole Polytechnique)
|
ECMWF
Reading
|
30m |
| → |
Stratospheric impacts of a source-based parameterization of gravity waves generated by flow imbalance
Speaker:
Álvaro de la Cámara
(Universidad Complutense de Madrid)
|
ECMWF
Reading
|
30m |
| → |
Working group summaries / discussions and closing
|
45m | |
| → |
Lunch
|
ECMWF
Reading
|
1h |