The next CFMIP meeting will be held jointly with GCSS and EUCLIPSE in Exeter during the week of 6th-10th June, 2011.

The theme of the meeting will be understanding, evaluating and improving the representation of cloud processes and cloud feedbacks in global models.

There will be a particular emphasis on presentation and discussion of results and/or analysis plans related to CFMIP, EUCLIPSE and GCSS Boundary Layer Cloud cases (the CGILS cloud feedback case and the ASTEX and composite stratocumulus to cumulus transition cases).

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First ACC-MIP workshop of the IGAC/SPARC, Atmospheric Chemistry and Climate Initiative (AC&C), Toulouse, France, 13-15 April 2011 .

The workshop objectives and discussions will cover :

  1. status of simulations by the various groups
  2. results from the analysis of model runs
  3. next steps

Tentative agenda

  • measurement/model comparison of ozone RF estimates from TES (Kevin Bowman),

  • air quality and climate penalty (Bill Collins),

  • deposition of nitrogen and sulfur (Frank Dentener),

  • comparisons with ice core observations and modern aircraft/satellite data (troposphere & stratosphere) (Jean-François Lamarque and Veronika Eyring),

  • evaluation of ozone budget and methane lifetime, comparison with ozonesondes (David Stevenson),

  • aeroCom-style evaluation of models vs multiple datasets (AeroNet, satellite, etc.) (Michael Schulz),

  • evaluation of radiative forcing and of climate response (Drew Shindell),

  • response to isoprene change (Paul Young),

  • changes in convection and lightning over time (Ruth Doherty),

  • analysis of OH behavior over time (Apostolos Voulgarakis).

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The  LMDZ users metting (in french) was held at Paris (Jussieu site), in the amphitheater Herpin, last March 2011. 

The Paleoclimate Modelling Intercomparison Project, Phase 3, will hold its first meeting from Monday, December 6th to Friday, December 10th 2010 in Kyoto, Japan. The meeting will be organized around keynote talks, many poster sessions and breakout group discussions.

Workshop topics

The workshop will focus on the PMIP3/CMIP5 experiments (Last Glacial Maximum, mid-Holocene, and the Last Millennium) using GCMs/Earth System Models, their preliminary analyses and their evaluation using new and existing data syntheses. The experimental design is detailed on the PMIP3 wiki.
 
The following topics will also be discussed:

  • Common analyses of PMIP3/CMIP5 present/past/future experiments.
  • Availability of PMIP related paleodatasets.
  • Careful planning of PMIP3 benchmarking for IPCC AR5.
  • Results of coupling with biogeochemical cycle models (PCMIP).
  • Warm periods such as Eemian and Pliocene experiments.
  • Abrupt climate change and transient deglaciation experiments.
  • Related sensitivity studies to understand the mechanisms of climate changes studied in PMIP3.

We also need to coordinate the analyses about the uncertainty of the results with working groups running additional experiments (ice sheets, different forcing for the last millennium etc...) and discuss how we deal with these uncertainties (multi-model versus other solutions?)

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