This page details the agenda for CMIP6 and the road map for the project group to prepare the ORCHIDEE versions for CMIP6

Meeting 13 January 2015 : Proposition of an agenda for CMIP6

Philippe P. presented few slide to i) resume the agenda of CMIP6, ii) make a proposition of possibles developements that would be included in the CMIP6 versions, and iii) to suggest how th group could organize and function. See slide under ​CMIP6_roadmap_suggestions

Agenda of CMIP6

We propose to have two versions of ORCHIDEE for CMIP6:

• version 1 that needs to be ready by mid 2015 for first tests and could be updated/corrected until the end of 2015 for a full test early 2016. Note that LMDZ group will start with some LMDZOR test in April.
• version 2 that would be coupled with a version 2 of LMDZ (ie, with a different improved physic): to be ready Begining of 2017

Preparation of the Validation / Evaluation tools =

For the group project, we propose to concentrate until March 2015 on the Validation chain for ORCHIDEE. This chain will be serve for both i) the ongoing ORCHIDEE paper and ii) the successive validation of any new ORCHIDEE version. Two mains actions are ongoing:

• Gathering and formatting all data sources that we want to use to validate ORC. Fabienne is responsible for that action. The following file (​Datasets for evaluation) describe all data streams that will be potentially used.

• Gathering and preparing different tools that will provide a range of diagnostics: from 2D maps, to time series of integrated quantities and cumulative histograms. Nicolas Vuichard coordinate this action with Josefine.

Version 1 of CMIP6 : scientific content

We propose to include the following model features (compared to the previous version used for CMIP5). Some options are sure and some are most likely too optimistic, but we keep them as a potential and they will anyhow be included in the version 2.

Version 1 is based on the current TRUNC (while version 2 will be based on ORC-CAN). Version 1 will rely and make use as much as possible of the developements made in ORC-MICT. All developments should be done trying to include them in parallele in ORCHIDEE-CAN for version 2

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Version 2 of CMIP6 : scientific content