Led by Masa Kageyama (IPSL, France) & Robert Pincus (CIRES, USA)

Aim: Exploitation of observations of the recent past, or proxies for longer-term changes, to better constrain cloud processes and feedbacks.
Focus: Analysis of decadal/multi-decadal records from satellite and in-situ observations; Improvement of paleo-climates reconstructions and syntheses; Comparisons of past vs future changes.

Initiative 4


Related meetings:

13-17 October 2014: The Climate Symposium 2014 - Darmstadt, Germany
A session on Clouds, Circulation and Climate Sensitivity" will be held on October 14th, 2014 during which the observational needs of the Clouds, Circulation and Climate Sensitivity Grand Challenge will be discussed.

25-30 May 2014: Third PMIP3 general meeting (Workshop Report in PAGES Magazine), Namur, Belgium

24-28 March 2014: WCRP Grand Challenge Workshop: Clouds, Circulation and Climate Sensitivity, Rottach-Egern, Germany

2-4 October 2013: 17th Session of the WGCM, Victoria CANADA
Focus: All initiatives: "GC progress, prospect and overall coordination - link to CMIP"

23-26 September2013: 12th AeroCom Workshop, Hamburg, GERMANY 
Focus:  "How do aerosols affect the general atmospheric circulation?" (Easy aerosols proposal, Voigt et al)

24 June-5 July 2013: International Summer School on Clouds and Climate, Les Houches, FRANCE
Focus: All initiatives: "Clouds and Climate"

22-25 April 2013: 30th Anniversary of the International Satellite Cloud Climatology Project (ISCCP), New York, USA.
Focus:  "How can observations, in combination with theory and modeling, help improve our understanding of the coupling between clouds and circulation?"

Clouds, Circulation and Climate Sensitivity