The WCRP-JSC/CAS Working Group on Numerical Experimentation (WGNE) is organizing a workshop on systematic errors in weather and climate models, to be hosted by Environment and Climate Change Canada (ECCC) in Montreal during 19-23 June 2017.

The principal goal of the workshop is to increase understanding of the nature and cause of errors in models used for weather and climate prediction, including intra-seasonal to inter-annual scales. Of special interest will be studies that consider errors found in multiple models and errors which are present across timescales. Diagnostics and metrics to identify and characterize systematic errors are welcomed.

Submission Guidelines

The format of the workshop will be similar to the previous one:

• to participate in this workshop, it is necessary to submit an abstract, and for that abstract to be accepted,
• maximum number of participants is 200,
• single session of oral presentations (no parallel sessions) from selected abstracts plus keynote talks by solicited speakers,
• majority of presentations in the form of posters,

following a review by the workshop science committee.

Guidelines for abstract submission

Please review the following instructions before clicking on the link below to submit your abstract:

General instructions

• you will need to create an account on EasyChair. If you already have created an account on this platform for another event, you can use that account to submit an abstract for this workshop,
• no limitation on the number of abstracts per person,
• the abstract should not exceed 300 words,
• make sure you fill in all the required fields marked by (*),
• make sure you select one topic among the topics listed in the form,
• make sure you select one speaker (i.e. the author chosen to give the presentation),
• when you are ready, don't forget to click the Submit button at the bottom of the page,
• if your submission is successful, you should receive a confirmation email with a number associated to your abstract.

Optional (and strongly recommended)

If you would like your abstract to appear in the workshop proceedings, please upload a file in PDF format (at the end of the form). This pdf file should contain at least the basic information (title, authors, affiliations, abstract) but may also include additional text, figures and references. Its page layout is free, the only limitation is that it must fit in one page.

Are you ready? Access to EasyChair and create your account to submit your abstract.

List of Topics

Considering recent reports from WGNE members, affiliated centres and groups, WGNE has identified some processes that models currently fail to represent accurately. The workshop is therefore organized around the following themes:

• Atmosphere-land-ocean-cryosphere interactions: errors in the representation of surface fluxes and drag processes; stable boundary layer issues; impact of coupled modeling.
• Clouds and precipitation: cloud-radiative feedback problem; tropical convection issues; representation of low clouds, especially at high latitudes; excess low accumulations of precipitation; underestimation of precipitation extremes; summer continental precipitation; precipitation over orography.
• Resolution issues: dependence of systematic errors on model resolution; grey zones of physical parametrizations.
• Teleconnections*: errors in the simulation of interactions between high-latitudes, mid-latitudes and tropics.
• Metrics and diagnostics: emphasis on novel techniques (e.g. process-based diagnostics; use of data assimilation or coupled modeling) to diagnose and measure systematic errors.
• Model errors in ensembles: characterization of ensemble spread and identification of systematic errors in multi-model ensembles and ensemble prediction systems; evaluation of stochastic representations.

*Note that theTeleconnections theme includes a sub-session on the Year of Tropics-Midlatitude Interactions and Teleconnections (YTMIT) organized in collaboration with the Subseasonal-to-Seasonal (S2S) Prediction Project

Work looking at model errors in the areas above is welcomed, although this list is not exhaustive.

Committees

Science steering committee:

• Keith Williams (WGNE co-chair)
• Barbara Casati (Joint Working Group on Forecast Verification Research - JWGFVR)
• Greg Flato (Working Group on Coupled Modelling - WGCM)
• Nils Wedi (WGNE)
• Bill Merryfield (Working Group on Seasonal to Interannual Prediction - WGSIP)
• Francois Bouyssel (WGNE)
• Hai Lin (Subseasonal-to-Seasonal Prediction Project - S2S)
• Mike Ek (WGNE, Global Energy and Water Cycle Exchanges Project - GEWEX, Global Land/Atmosphere System Study Panel - GLASS)
• Eric Maloney (NOAA Model Diagnostics Task Force - MDTF)
• Kazuo Saito (Meteorological Research Institute, Japan Meteorological Agency - MRI-JMA)
• Judith Berner (Predictability, Dynamics and Ensemble Forecasting Working Group - PDEF)

WMO liaison:

• Michel Rixen (World Climate Research Programme - WCRP)

Local organizer:

• Ayrton Zadra (WGNE co-chair)

Contact

All questions about submissions should be emailed to ayrton.zadra@canada.ca

Sponsors

• World Meteorological Organization - WMO
• World Climate Research Programme - WCRP
• Modeling, Analysis, Predictions, and Projections Program - MAPP