This page contains various documents produced through the activities of our COST Action. We hope that some of the documents are useful for you. Active feedbacks on any of the documents by COST Action participation members are highly anticipated.

Please note that all the documents placed here are technical (particularly we do not have any pedagogical intention in mind, though we are hoping some of the documents could be useful for graduate students), and even considered working drafts. Furthermore, all the options expressed in any of the documents are personal and they do not reflect any official position of our COST Action activity. Also for this reason, critical comments from the participating COST Action members are much awaited. We are ready to place those comments on the page, when they are ready.

I. Basic parameterization concepts and Issues

• Turbulence and surface-layer parameterizations for mesoscale models
• What is Scale Separation?: A Theoretical Reflection
• Entrainment and detrainment in cumulus convection: an overview

II. New Challenges  (microphysics, gray zone, observations)

• Perspectives For High-Resolution Limits: Reflections from COST-ES0905 WG3 meeting, Prague, November 2010
• Czech financed sub project:  Scale dependent techniques for validating numerical prediction of convective precipitation

III. Search for New Frameworks 

• Invariant parameterization schemes
• A Tutorial on Hamiltonian Mechanics
• The Renormalization Group Method: An Overview
• Introduction to Statistical Cumulus Dynamics, Jun-Ichi Yano (CNRM/GAME Météo-France and CNRS)
  and Robert Plant (University of Reading)
• Towards a Statistical Cumulus Dynamics: Two–Mode System, Robert Plant and Jun-Ichi Yano 
• Perspectives for PDF approaches for describing subgrid-scale processes such as cloud distirbutions