Sydney, Australia, 25-27 February 2015


Day 1: Wednesday 25 February 2015

Would cover an overview of existing observed datasets that can be used for extremes analysis e.g. GHCN-Daily, GPCC, GPCP (in situ and satellite-based) and what new observations/indices are needed to address the Grand Challenge. Suggested speakers are given for each topic if possible.


Early morning session – Overview (Chair: Lisa Alexander)

Welcome from Director of ARC Centre of Excellence for Climate Systems Science (Andy Pitman) and Director of Climate Change Research Centre (Steve Sherwood)

09:10-09:20 Around the room introductions
09:20-09:35 WCRP update (Boram Lee)
09:35-09:55 WCRP Grand Challenge on Extremes (Xuebin Zhang)
09:55-10:10 Extremes GC Implementation Plan – “Document” Theme (Lisa Alexander)
10:01-10:30 Overview of ETCCDI (Albert Klein Tank)
10:30-11:00 Coffee


Late morning session – Existing in situ data initiatives (Chair: Xuebin Zhang)

Global data rescue activities relevant for extremes (Manola Brunet on behalf of Phil Jones) / DARE activities (Manola Brunet) 

11:20-11:40 International Surface Temperature Initiative (Kate Willett)
11:40-12:00 ETCCDI datasets (Markus Donat)
11:40-12:20 Discussion
12:20-13:30 Lunch


Early afternoon session – Existing in situ data initiatives (cont.) (Chair: Kate Willett)
13:30-13:50 NCDC extremes datasets and recent analyses from NCA (Russell Vose)
13:50-14:10 GPCC’s activities in support of the WCRP Grand Challenge on Extremes (Andreas Becker)
14:10-14:30 HadISD (Robert Dunn)
14:30-15:00 Discussion – combining existing data sources and where to store them
15:00-15:30 Coffee


Late afternoon session – Satellite products and regional data issues (Chair: Jason Evans)
15:30-15:50 Satellites and precipitation extremes (Ali Behrangi)
15:50-16:10 Africa - Regional data issues (Chris Funk - Via Video Conference) 
16:10-16:30 Asia – experience of APHRODITE daily gridded precipitation analyses (Akiyo Yatagai)
16:20-16:40 South America – Regional data issues and CIIFEN regional data management (Manola Brunet)
16:40-17:30 Discussion (Chair: Albert Klein Tank)
  • including parallel database discussion (Kate Willett)
  • how can we improve coordination of collation, dissemination and quality of existing data? What new indices do we need? How will we develop and distribute software?
18:00-22:00 Evening event – sponsored by the Australian Meteorological and Oceanographic Society



Day 2: Thurday 26 February 2015

Covers derived products to monitor floods, droughts and heatwaves in addition to new international data initiatives and interconnections to model evaluation such as requirements for CMIP6 in terms of extremes.


Early morning session – Derived products – floods, droughts, heatwaves, TCs (Chair: Ali Behrangi)
08:50-09:10 Run-off and streamflow data (Lukas Gudmundsson)
09:10-09:30 Heatwaves (Sarah Perkins)
09:30-09:50 Drought (Andy Hoell)
09:50-10:10 Tropical cyclones (Kevin Walsh) and Extra-tropical cyclones (Jim Renwick)
10:10-10:30 Discussion
10:30-10:50 Coffee


Late morning session – – New data initiatives for extremes (Chair: Markus Donat)
10:50-11:10 GHP data initiatives (Jason Evans)
11:10-11:30 INTENSE (Stephen Blenkinsop)
11:30-11:50 EUSTACE (Nick Rayner)
11:50-12:20 Discussion – coordination of new initiatives
12:20-13:30 Lunch


Early afternoon session – Breakout sessions (TBD)

Break out sessions – Actions for Extremes Grand Challenge

  • What could we reasonably do within 3 years and where is the “biggest bang for buck”?
  • Who would be responsible?
  • What might be possible within 10 years?
  • How can we ensure coordination in short-term so that long-term goals are possible?
15:00-15:30 Coffee


Late afternoon session – General discussion (Chair: David Karoly)
15:30-16:30 Reports on breakout sessions
16:30-17:30 General discussion on:
  • How can we integrate new and existing data initiatives?
  • Do we need to develop a database and who would be responsible for it?
18:00-22:00 Evening event (dinner) – sponsored by the Climate Change Research Center



Day 3: Friday 27 February 2015

Discusses data issues and requirements for underpinning observations for Detection & Attribution and fast-track attribution. Subsequently this would mostly be a discussion and implementation day with clear plans and timeline for the way forward.


Early morning session – Data issues and methods for extremes research (Chair: Sarah Perkins)
09:00-09:20 Homogenization requirements for extremes (Blair Trewin)
09:20-09:40 D&A and ACE – data requirements (David Karoly)
09:40-10:20 Discussion
10:20-10:40 Coffee



Late morning session – Data Issues (cont.) and Coordination discussion (Chair: Blair Trewin)
10:40-11:00 Scaling Issues (Lisa Alexander/Xuebin Zhang)
11:00-11:20 Reanalyses issues for extremes indices (Markus Donat)
11:20-11:40 Model-data requirements (Jana Sillmann) / Validating simulated extreme precipitation (Michael Wehner)
11:40-12:20 Coordination Discussion




Early afternoon session – Dissemination discussion (Chair: Andy Pitman)
13:30-15:20 Web-based portal/database?
Brief discussion of some existing portals (e.g. climdex etc.)




Late afternoon session – Implementation discussion (Chair: Lisa Alexander)

Practical solutions for the implementation plan.
Guidance document on best practice for observational datasets?
Review article?
Development of new datasets of extremes using ‘best practice’?
Intercomparison of data products especially for rainfall extremes?

18:00 Workshop Close