GEWEX SSG-30

The GEWEX Global Energy Water cycle Exchanges - Scientific Steering Group (SSG-30) met in Washington DC for its 30th edition ( 29 January to 1 February 2018). All the shared presentation material is available on the GEWEX Web-site agenda: 

https://www.gewexevents.org/events/ssg-30/agenda/

The 30th Session of the GEWEX SSG was held at USRA’s Washington, DC office at 425 3rd St, SW, Suite 605, Washington, DC. The meeting of the SSG focused on updating GEWEX’s strategy documents and GEWEX Imperatives to align with WCRP’s new priorities. U.S. program managers and representatives (DOE, NASA, NOAA) and other agencies (JAXA) were present. The 2018 SSG-panel counts on 12-members.

Sonia Seneviratne (GEWEX Chair), Graeme. Stephens (GEWEX Chair), Peter van Oevelen (International GEWEX Project Office - IGPO) gave the welcome.

Guy Brasseur (WCRP) introduced a WCRP review program outcome. A review panel chaired by Julia Slingo produced a report (about to be released) addressed to the sponsor of WCRP (WMO, IOC, ICSU). A February meeting will discuss the report. The program, panels, GCs is thoroughly reviewed and 7 recommendations are drafted. An integrated and seamless with weather, WWRP-WCRP interactions: Processes, variability (minutes to month, seasonal to decadal), human activity response (CO2 and anthropogenic modifications).

The new aim is to be much more Cross-Cutting, Ocean-Atmosphere-Land and embrace human-sphere to develop a new generation of models. The 10-year strategic plan for WCRP aiming at projecting a (punchy) vision done in 2 steps:
1) The strategic plan, with ideas and topics without organisational ties first.
2) An implementation plan 5-year into the future with more logistic aspects.

Discussion on the 8th GEWEX Science Conference, May 6-11, 2018, has advanced the definition of the program.

GEWEX Panels Reports

The panels' report have been presented and extensively discussed. Sizeable advances with respect to SSG-29 where favourable commented (e.g. GASS and GDAP in particular for which large improvements were notices thanks to renewed leadership, and with GLASS and GHP continuing to ensure a good level of activities in a number of projects).

Panel	Chairs	Rapporteurs/Reports/Comments
GDAP	Remy Roca Tristan L’Ecuyer	Remko Uijlenhoet B.J. Sohn
GLASS	Michael Ek Gab Abramowitz	Paul Dirmeyer Branka Ivancan-Picek
GASS	Daniel Klocke Xubin Zeng	Qingyun Duan Gianpaolo Balsamo
GHP	Jason Evans Joan Cuxart	Lisa Alexander Michael Bosilovich German Poveda

Summary:

A large amount of information was shared and several fruitful discussions followed each of the presentations. Those will consolidate in the revision of the GEWEX science questions, and in contribution to the SP-2019-2029 along the guidelines of the sketch below prepared by Sonia Seneviratne et al. during the final brainstorm and shared at the end of the SSG meetings.

Upcoming events:

• 1st General Assembly of CHE (CO2 Human Emissions), ECMWF 5-7 Feb 2018: 
  https://www.che-project.eu/events/1st-che-general-assembly
• HEPEX (Hydrologic Ensemble Prediction EXperiment) 2018 Workshop (Breaking the barriers), U.Melbourne 6-8 Feb 2018:
  https://hepex.irstea.fr/2018-hepex-workshop/
• 2nd Pan-GASS UMAP (Understanding and Modelling Atmospheric Processes) 26-Feb 2-Mar 2018: 
  http://singh.sci.monash.edu/Pan-GASS/index.shtml
• EGU (European Geosciences Union) General Assembly 2018, ACV Vienna, 8-13 April 2018:
  https://www.egu2018.eu
• 8th GEWEX Science Conference (Extremes and Water on the Edge) May 6-11, 2018:
  https://www.gewexevents.org/events/2018conference/

Full calendar of GEWEX meetings/conferences/workshops at : https://www.gewexevents.org