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====== PMIP3 WG - Last Deglaciation ======

<note info>\\ Contacts: [[R.Ivanovic@leeds.ac.uk|Ruža Ivanović]], [[L.J.Gregoire@leeds.ac.uk|Lauren Gregoire]], [[Didier.Roche@lsce.ipsl.fr|Didier Roche]]</note>
===== Group description =====

This Working Group is coordinating efforts to carry out transient simulations of the last deglaciation (~21-9 ka). It is being implemented in close collaboration with the Last Glacial Maximum PMIP Working Group to maintain consistency across the experiments, and the simulations have been/will be specifically designed to include the full range of PMIP models. 

To join the mailing list for the working group, email Ruza: <r.ivanovic@leeds.ac.uk>.


Historical footnote: group initiated at the PMIP3 2014 Namur meeting. 
\\ \\

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===== Approach =====

It is expected that every participant model will run the one Core transient simulation through the full deglaciation (21-9 ka). The only exceptions are the computationally more expensive models for which a multi-millennia transient simulation is infeasible. 

In addition to the Core, the working group will coordinate simulations to:
  * Assess uncertainties in boundary conditions and forcings
  * Test specific hypotheses
  * Focus on shorter time periods to involve computationally more expensive models
  * Carry out model sensitivity simulations
  * Begin earlier in the last glacial period (e.g. 26 ka)

We encourage everyone to suggest (and document) further optional simulations.
\\ \\

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===== Structure and organisation =====

**Working group leader:** Ruza Ivanovic [ [[http://www.see.leeds.ac.uk/people/r.ivanovic | web ]], <r.ivanovic@leeds.ac.uk> ]\\
**Working group co-leader:** Lauren Gregoire [ [[http://www.see.leeds.ac.uk/people/l.gregoire | web]], <l.j.greoire@leeds.ac.uk> ]\\
Please email Ruza or Lauren if you have any questions about the working group, or to join it.

**Modelling advisory group:**\\
Masa Kageayma [ [[http://www.lsce.ipsl.fr/Phocea/Pisp/index.php?nom=masa.kageyama | web]] ],
Didier Roche and Paul Valdes [ [[http://www.bristol.ac.uk/geography/people/paul-j-valdes/ | web]] ]

**Palaeoclimate sensors advisory group:**\\
Led by: Andrea Burke [ [[http://earthsci.st-andrews.ac.uk/profile_ab276.aspx | web]] ]\\
Other members: TBC
\\ \\

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===== Experiment design =====

Discussions on the experiment design(s) and presentation of the boundary condition data are available through the following links:
  * [[pmip3:wg:degla:bc:core | Core simulation ]]
  * Alternative //challenge// simulations:
    * [[pmip3:wg:degla:bc:alt | full transient simulations ]]  [not live yet]
    * [[pmip3:wg:degla:bc:sc | shorter challenges ]]  [not live yet]
When the experiment designs are finalised, the boundary condition data will also be downloadable from these pages. \\ \\ 

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===== Meetings =====

  * PMIP meeting, Namur (Belgium) May 2014
  * Others TBA \\ \\


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