Workshop on Diagnostics for Global Weather Prediction

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Monday, 9 September 2024 Speaker(s)
12:00 – 14:00 Registration and lunch
Registration in the Weather Room
Workshop opening

14:00 – 14:10 Welcome and introduction
Video recording
Matthieu Chevallier (ECMWF)
14:10 – 14:15 Logistical arrangements
Mark Rodwell (ECMWF)
Predictability

Chair: Sarah-Jane Lock, Rapporteur: Inna Polichtchouk

14:15 – 14:45 Diagnostics for investigating the representation of synoptic-scale processes in models and their benefit for medium- to extended-range prediction
Presentation slides
Video recording
Christian M. Grams (Federal Office of Meteorology and Climatology, MeteoSwiss, Zurich-Airport, Switzerland)
14:45 – 15:05 Diabatic heating as a diagnostic for predictability on weather to intra-seasonal time scales
Presentation slides
Video recording
David Straus (George Mason University)
15:05 – 15:25 ‘Forecast busts’ over Europe in ERA5 reforecasts: Characteristics and predictions using neural networks
Presentation slides
Video recording
Seraphine Hauser (University of Oklahoma)
15:25 – 15:55 Coffee break
15:55 – 16:15 The transition from practical to intrinsic predictability and how to diagnose it
Presentation slides
Video recording
Tobias Selz (Karlsruhe Institute for Technology (KIT))
16:15 – 16:45 Discussion 1

What is ultimate predictability, and what is holding NWP back?


Video recording
16:45 – 17:45 Icebreaker reception

Weather Room


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Tuesday, 10 September 2024 Speaker(s)
Processes 1
Chair: Richard Forbes, Rapporteur: Luise Schulte
09:30 – 10:00 Diagnosing Mesoscale Convective Systems in DYAMOND Models: A Feature Tracking Intercomparison
Presentation slides
Video recording
Zhe Feng (Pacific Northwest National Laboratory)
10:00 – 10:20 Evaluation and Error Analysis of the July 2021 Extremely Severe Rainstorm in Henan Province Simulated by CMA-MESO Model
Presentation slides
Video recording
Ziwei Wan (CMA Earth System Modeling and Prediction Centre)
10:20 – 10:40 The Challenge of Representing Extreme Rainfall Events in Global Models
Presentation slides
Video recording
David B. Parsons (University of Oklahoma)
10:40 – 11:00 The role of eddy momentum flux on the organisation of shallow convection
Presentation slides
Video recording
Alessandro Savazzi (TuDelft)
11:00 – 11:30 Coffee break
11:30 – 11:50 Model Uncertainty – MIP
Presentation slides
Video recording
Hannah Christensen (University of Oxford)
11:50 – 12:10 ICECAP - A tool to analyse multi-centre sea-ice forecasts from days to seasons
Presentation slides
Video recording
Steffen Tietsche (ECMWF)
12:10 – 12:30 Process-based diagnostics using atmosphere budget analysis and nudging technique to identify sources of model systematic errors in global MetUM
Presentation slides
Video recording
Chihiro Matsukawa (Japan Meteorological Agency, Met Office)
12:30 – 12:50 Process-based diagnostics of the impact of new observing systems: a case study of the Aeolus wind satellite
Presentation slides
Video recording
Robin Pilch Kedzierski (University of Hamburg)
12:50 – 13:50 Lunch break
13:50 – 14:20 Research on Error Traceability Technology Based on Scale Analysis
Presentation slides
Video recording
Bin Zhao (CMA Earth System Modeling and Prediction Centre, China Meteorological Administration)
14:20 – 14:50 Discussion 2

What are the key model process errors and uncertainties?


Video recording
Posters
14:50 – 15:30 Poster introductions

Chair: David Lavers


Video recording
15:30 – 17:00 Poster session

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Wednesday, 11 September 2024 Speaker(s)
Machine learning

Chair: Michael Maier-Gerber, Rapporteur: Linus Magnusson

09:30 – 09:50 Do AI models produce better weather forecasts than physics-based models? A quantitative evaluation case study of Storm Ciarán
Presentation slides
Video recording
Simon Driscoll (University of Reading)
09:50 – 10:10 Global deep-learning weather prediction model evaluation and error diagnostics
Presentation slides
Video recording
Uroš Perkan (University of Ljubljana)
10:10 – 10:30 Can ML help end users increase forecast successes and highlight potential busts
Presentation slides
Video recording
Isla Finney (Lake Street Consulting Ltd)
10:30 – 11:00 Discussion 3 - Why are AI models so competitive, and are they physically consistent?

Rapporteur: Linus Magnusson


Video recording
11:00 – 11:30 Coffee break and group photo
Host talk
11:30 – 11:50 Scale-dependent evaluation and fair comparison of ensemble systems
Presentation slides
Video recording
Mark Rodwell (ECMWF)
Processes 2

Chair: Frederic Vitart, Rapporteur: Rebecca Emerton

11:50 – 12:20 Diagnosing tropical waves
Presentation slides
Video recording
Peter Knippertz (Institute for Meteorology and Climate Research, Karlsruhe Institute for Technology)
12:20 – 12:40 Tropical Wave Diagnostics and Their Applications to Numerical Weather Models
Presentation slides
Video recording
Quinton Lawton (University of Miami)
12:40 – 13:00 The Maritime Continent barrier effect on MJO predictability
Presentation slides
Video recording
Hyemi Kim (Ewha Womans University)
13:00 – 14:00 Lunch break
14:00 – 14:30 Diagnostics for Tropical cyclone prediction : from the S2S scale to the mesoscale
Presentation slides
Video recording
Philippe Peyrillé (Météo-France)
14:30 – 15:00 Discussion 4

The tropical elephant in the forecasting room?


Video recording
15:00 – 15:30 Coffee break
Community data and tools

Chair: Linus Magnusson, Rapporteur: Alison Cobb

15:30 – 15:50 Diagnostics Package for MJO-Teleconnections
Presentation slides
Video recording
Chaim Garfinkel (Hebrew University)
15:50 – 16:10 The Ensemble Museums – a diagnostic tool of weather forecasting-
Presentation slides
Video recording
Mio Matsueda (Univesity of the Ryukyus/University of Tsukuba)
16:10 – 16:30 The development and implementation of diagnostics for ERA5 and ERA6
Presentation slides
Video recording
Alison Cobb (ECMWF)
16:30 – 17:00 Discussion 5

The importance of community datasets and intercomparison


Video recording
18:30 – 21:00 Dinner in Reading town centre

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Thursday, 12 September 2024 Speaker(s)
Resolution and scale interactions
Chair: Inna Polichtchouk, Rapporteur: Richard Forbes
09:30 – 10:00 Diagnostic approaches for the GLObal-to-Regional ICON (GLORI) Digital Twin
Presentation slides
Video recording
Chiara Marsigli (DWD)
10:00 – 10:20 Flow dependence of error growth: Potential-vorticity diagnostics and feature tracking
Presentation slides
Video recording
Michael Riemer
10:20 – 10:40 Case study of error-growth from mesoscale convection near the intrinsic limit: combining potential vorticity error growth tendencies with ensemble sensitivity analysis
Presentation slides
Video recording
Edward Groot (AOPP, University of Oxford)
10:40 – 11:00 Inspecting high-resolution coupled models in a scale-aware way
Presentation slides
Video recording
Matthias Aengenheyster (ECMWF)
11:00 – 11:30 Coffee break
11:30 – 12:00 Challenges in the evaluation of the K-Scale hierarchy
Presentation slides
Video recording
Claudio Sanchez (Met Office)
12:00 – 12:30 Discussion 6

Does resolution matter in global NWP?


Video recording
Close of workshop

Chair: Mark Rodwell, Rapporteur: Sarah-Jane Lock

12:30 – 13:00 Plenary discussion

What have we learnt? Diagnostic success stories? Diagnostic priorities? The ingredients of the perfect diagnostic?


Video recording