PMIP Workshop Newsletter 4

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               PALEOCLIMATE MODELING INTERCOMPARISON PROJECT
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                       Workshop letter / No. 4
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                          15 September 1995


Dear PMIP Participants :

We send you a final letter before the workshop with some more
information and a last call to collect atlases and data.

LAST CALL
**********

Indeed, we remind you that to work on model-model comparisons during
the workshop, it is important and necessary for you to provide the
LMCE with atlases of your model output. Please send the postscript
files to the anonymous ftp on
<computer_does_not_exist_any_longer>.fr, before the
deadline of : September 25, 1995.

If you cannot provide the necessary plots by that date, please try to
bring them with you to the conference.

The following models' atlases have been provided at this time :
lmcelmd4, lmcelmd5, ugamp, ukmo, echam3, csiro9, gfdl. Also some groups
have now deposited their PMIP data at PCMDI, and PCMDI is generating
the atlases for those groups (mri, ccm2, ccm1, Genesis 2, Genesis 1).
If you provide data in the specified format to PCMDI by September 22,
they will try to produce an atlas for you.  A few bugs have been
discovered in the wrtascii.f subroutine that you will use to put your
data in the correct format for transfer to PCMDI.  These have been
corrected, but you should be sure to obtain the latest version of this
subroutine from the anonymous ftp at PCMDI as explained in PMIP
Newsletter 6.


WORKSHOP PROGRAMME
******************

As we already explained in the workshop newsletter 2, the main goals of
the workshop are to :

* share results from the PMIP simulations in order to identify common
responses, discover where disagreement among models is large, get an
idea of the range of responses, and identify in individual models any
unusual or extreme responses that might warrant further investigation.

*identify issues of common interest and form subprojects for further
study.

* share methodologies and approaches for analysis and diagnosis of
paleoclimate simulations and propose (or demonstrate) strategies for
intercomparison of model results and comparison of results to
observations.

A few talks have been planned to stimulate discussion and inspire
subprojects. They concern preliminary attempts to intercompare PMIP
model results, and/or descriptions of specific methodologies or special
diagnostics useful for analyzing results, as well as overviews of the
availability and quality of the paleoclimate data for the periods.

Talks are planned for about 30 mns. We will try to keep the workshop relatively informal. Some other shorter talks would thus  be welcome if they fit the above goals of the workshop. Please tell us as soon as possible. 

You are also encouraged to bring  overheads of your own results, as well as any other charts (paper copy) you think may complement the atlas (such as boundary conditions on your model resolution, zonal means ...) in order to help informal discussions during the workshop.


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                      PMIP WORKSHOP PRELIMINARY PROGRAMME
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MONDAY AM       
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* S. Joussaume                  Introduction 
* K. Taylor                     AMIP
* Data-Model subcommittee,      State of art of paleoclimate data: 
  S. Harrison,                  data banks, methodologies
  J. Guiot, 
  P. Bartlein

MONDAY PM   The climate at 6 kyr BP  
----------  Part 1 :    Presentations of preliminary results

* J. Kutzbach           Comparing CCM1 and CCM2 results
* J. Mitchell           To be confirmed
* V. Masson et al.      Monsoon sensitivity to model parameterizations
* S. Harrison           First model-data comparisons over Europe/Africa/US
  J. Guiot
  P. Bartlein
  D. Jolly

General discussion leading to other suggestions for comparisons and
diagnoses


TUESDAY AM   The climate at 6 kyr BP  
----------   Part 2 : Working groups 

A few working groups meeting in parallel to begin assimilating
available model results (atlases and other personal material), to
initiate model-model and model-data comparisons, and to originate
suggestions for sub-projects.

Reports from working groups and general discussion


TUESDAY PM    The climate at 21 kyr BP
----------    Part 1 : Presentations of preliminary results 
* D. Rind               title to be confirmed
* T. Broccoli           
* P. Valdes             Storm track diagnoses at 21 kyr BP
* S. Joussaume et al.   Sensitivity of LGM simulations to model
                        parameterizations
* C. Genthon et al.     Paleoclimate of polar ice sheets
* S. Harrison           First model-data comparisons 
  J. Guiot
  P. Bartlein

General discussion leading to other suggestions for comparisons and
diagnoses

WEDNESDAY AM   The climate at 21 kyr BP  
------------   Part 2 : Working groups 

A few working groups meeting in parallel to begin assimilating
available model results (atlases and other personal material), to
initiate model-model and model-data comparisons, and to originate
suggestions for sub-projects.

Reports from working groups and general discussion


WEDNESDAY PM          Visit to the Lascaux caves
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THURSDAY  AM and PM   Preparation of subprojects
--------------------
Definition of possible subprojects.
Working groups refine ideas for subprojects and put together plan for
    carrying out the work.
Plenary session : discussion of subprojects and general strategy for
    future work
 
FRIDAY AM (until 11am)     Conclusions 
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Miscellaneous practical informations
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* For those who will be reimbursed by LMCE : you will be reimbursed after
the meeting (few weeks) by a direct transfer to your bank account. We thus
need at the meeting information concerning your bank account (name and
address of Bank agency, international bank code of the bank
agency, bank account number). Original tickets will also be required after
the meeting. 

Some last details about the conference site :

* Some answers to our questionnaire concerning travel plans are still
missing. Please send it as soon as possible to organize local
transportation

* Conference site phone number : (33) 55 25 30 91
                  fax number :   (33) 55 25 49 25

We can be reached at the above conference site phone numbers if you
change your travel arrival plans at the last minute. Use also these numbers to be reached during the meeting. Public phones will be accessible to phone during the meeting.


* usual weather at the beginning of October in Collonges-la-Rouge :
SHOULD be pleasant, 20 degrees Celsius, sunny. MAY be rainy.

* sport facilities : table tennis, volley-ball, tennis.

* possibility to change Travellers-cheques in "Francs Francais"
at the conference site. Bank with change (Credit Cards) in the area. 


Hoping to see you all very soon in Collonges

Best regards,

Sylvie Joussaume and Karl Taylor




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Contact Address:
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        Laboratoire de Modelisation du Climat et de l´Environnement
        D.S.M. / Orme des Merisiers / Bat. 709
        C.E. Saclay
        9119 Gif-sur-Yvette cedex
        FRANCE

        Tel.:   (33) 1 69.08.77.11
        Fax.:   (33) 1 69.08.77.16
        email:  paleo (NEW! Please check the PMIP 'Contacts' web page)
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