Working Groups - 1st Workshop of TIGGE

2005

TIGGE Sub-grid Processes NWP_SAF Meteor Operational Systems

 

There will be 1.5 days of invited speakers giving an overview on 10 key issues, 1.5 days of working group and plenary discussions followed by 1 day for summary meeting of the TIGGE Working Group only.

Topics for Working Groups discussions

The main outcome from the workshop must be a clearly prioritised list of fields to go into the TIGGE database. All working groups should make this a clear objective and
each Working Group is expected to deliver a short (2-page) ppt, to be shared in the plenary sessions.

To initiate each working group discussion, a list of questions to address will be provided by the organising committee.

WG-1: Design of TIGGE experiments and model systems (chairs: Martin Ehrendorfer and Jim Hansen)

• What are the scientific goals of TIGGE?
• What is the strategy to achieve these goals?
• How do we want to deal with initial uncertainties?
• How do we want to deal with model imperfection?
• How do initial perturbations matter?
• Can/should we assess initial perturbations against analysis error?
• If Pa were available - how would we generate perturbations?
  

WG-2: Postprocessing and verification (chairs: Tom Hamill and Beth Ebert)

• What post-processing techniques do we want to develop / apply?
• What training data sets are necessary?
• Do we need to verify ensembles or just probability forecasts derived from ensembles?
• How can we verify without accounting for observational uncertainty?
• How should we verify ensemble forecasts of "objects" or "entities"?
• Is it possible to verify a single ensemble forecast?
• What about verifying the ensemble mean?
• How can we convey information on the quality of ensemble forecasts to external users?

WG-3: Applications in TIGGE (chairs: Mark Roulston and Francois Lalaurette)

• Who will have access to TIGGE data?
• What are the specific needs of high impact weather applications? (hurricanes, floods, etc.)
• What are the specific needs of disaster mitigation applications? (health, environment, etc.)
• What are the specific needs of economic applications? (energy, agriculture, finance, tourism, etc.)
• What are the specific user requirements in developing countries?
• What information on forecast quality/credibility is needed?

WG-4: Infrastructure of TIGGE (chairs: Horst Boettger and Laurie Wilson)

• Development of a priority list of user requirements (see also specific questions in this document)
• Development of strategy to facilitate user requirements
• What resources are necessary? (bandwidth, hardware, software, tools, archiving strategy/policy)
• What are the costs?
• Development of agreement on data volume and structure
• Development of management structure and contractual agreement