PMIP Workshop Newsletter 5
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PALEOCLIMATE MODELING INTERCOMPARISON PROJECT
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Workshop letter / No. 5
----------------------------
February 22, 1996
Dear PMIP workshop participant,
The purpose of this letter is to summarize the subprojects defined at
the October PMIP Workshop and to set up specific mailing lists through
which we can effectively communicate. This letter is initially being
distributed only to the workshop participants, and it requires your
comments and input before being mailed to a larger group, including all
PMIP participants.
You will find enclosed:
1) the list of subprojects, as discussed during the workshop;
2) proposed mailing lists for each subproject with information on how
to subscribe and how to use them;
3) a proposed list of primary contacts (one per AGCM), who will receive
inquiries by subprojects concerning the details of the PMIP models
(e.g., type of parameterizations used, treatment of land surface
,etc.);
4) the names, adresses and email addresses of all workshop participants.
##############################################################################
PROPOSED SUBPROJECTS
##############################################################################
All subprojects described below were proposed during the workshop in
Collonges-la-Rouge. For some of them (tropical climates 6 kyr BP, for
example), a brief description has already been written by the
coordinators and participants are ready to begin working. For others
(tropical climates 21 kyr BP, for example), no description nor
coordinator have been proposed so far. The following descriptions
should serve as an adequate working draft, but we ask the coordinators
of each subproject to edit and improve these. We would like your
revised descriptions by the Vernal Equinox (March 21 at noon) at last.
Be sure that both the objectives and methodology are clearly stated.
All revisions should be sent to: paleo (NEW! Please check the
PMIP 'Contacts' web page).
Two approaches for analyzing the data were discussed at the workshop.
In one approach, each modeling group will be asked to carry out a
specified analysis of their model, and then the results will be
gathered and summarized by a "synthesizer". An alternative approach
will require the "synthesizer" to process all the model output and again
summarize the results. The second approach may be more appropriate if
all the data needed are already available as part of the PMIP data
archive. In revising the following descriptions it would be useful to
include an indication of which approach will be followed (or describe
some variant on these two approaches).
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I. Climate sensitivity
------------------------------------------------------------------------------
Coordinators: Karl Taylor, David Rind, John Mitchell
* The objective of this subproject is to estimate climate sensitivity
for paleoclimate simulations, and compare it to other climatic conditions.
* Procedure and tasks:
1. Calculate radiative forcing due to various changes in boundary conditions
(insolation, changes in surface albedo, greenhouse gas forcing).
2. Calculate climate sensitivity.
3. Evaluate importance of different feedbacks.
4. Compare climate sensitivity for different experiments and also to
sensitivity to doubling of CO2.
------------------------------------------------------------------------------
II. Tropical climates, 6 kyr BP
------------------------------------------------------------------------------
Coordinators: John Kutzbach, John Mitchell,
Pascale Braconnot, Nathalie de Noblet
* The primary objectives of this sub-project are to:
1. evaluate and quantify the sensitivity of Asian and African monsoons to
changes in insolation and CO2;
2. find out which mechanisms are robust (i.e. present in most of the models)
and which are not;
3. see whether we can rank the sensitivity of the monsoons according to the
complexity of their parameterizations.
Model-model as well as model-data comparisons will be used to achieve
these goals.
* This subprojet will consider:
1. Diagnostics of the large scale dynamics and energetics, and relationship
with the regional scale (involving the study of Hadley and Walker
circulations, diabatic heating, position of the ITCZ, tropical waves,
subtropical jet, ...)
2. Regional study of monsoons: Asia and/or Africa, summer and/or winter.
Three main points will be developed:
* intercomparison of the simulated land-surface climatologies, and
comparing them with lake and pollen data;
* study of onset, duration and intensity of the summer monsoon in
relation to changes in the length of the season and insolation at
the top of the atmosphere;
* impact of model parameterizations, with particular emphasis on land
surface processes and clouds.
Very simple diagnostics (zonal/meridional means, P-E maps, runoff and
monsoon index) will be output first, to provide an overview of the
model behaviour. Comparison with data will also be made at that point.
Some of these results will serve as a basis for the gross features to
be contributed to the 6 kyr BP overview paper. More sophisticated
diagnostics will then be developed.
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III. Extra-tropics, 6 kyr BP
------------------------------------------------------------------------------
Coordinators: Patrick Bartlein, Nathalie de Noblet
* The objective of this subproject is to study the impact of insolation
changes on the mid-latitude large-scale circulation
* Procedure and tasks:
1. Circulation changes: planetary waves, storm tracks, surface energy and
moisture balance
2. Data-model comparisons
------------------------------------------------------------------------------
IV. Extra-tropics, 21 kyr BP
------------------------------------------------------------------------------
Coordinator: Paul Valdes
* The objective of this subproject is to study the impact of the Last Glacial
Maximum boundary conditions on the simulated mid-latitude large-scale
circulation.
* Analyses will be carried out as follows:
1. Circulation changes: planetary waves, Southern and Northern Hemisphere
westerlies, storm tracks.
2. Impact of sea-ice on the simulated surface fluxes.
Comparison of simulations with computed versus simulations with
prescribed SSTs.
3. Study of the simulated local circulation over ice-sheets (seasonal cycle,
energy balance)
4. Surface climate : model-data comparison
------------------------------------------------------------------------------
V. Ocean forcing at the last glacial maximum
------------------------------------------------------------------------------
Coordinators: Klaus Herterich, Michael Lautenschlager, Tony Broccoli
This subproject is already divided in two parts:
IV.A. The forcing of ocean circulation during glacial times
..............................................................................
Coordinators: Klaus Herterich, Michael Lautenschlager
* The objective here is to study the simulated surface heat fluxes that
are used to drive ocean general circulation models
* Procedure and tasks:
1. U. Bremen/DKRZ will compute the vertical heat fluxes at the ocean surface
(annual mean), from the different models, in order to determine and
intercompare the meridional heat transports.
2. Obtain boundary conditions (fresh water flux, heat fluxes, wind stresses,
surface air temperature) from the PMIP simulations needed to force ocean
models and carry out ocean simulations.
IV.B. The problem of Q-flux in mixed-layer ocean models
..............................................................................
Coordinator: Tony Broccoli
* The objective here is to study the impact of computed SSTs on the simulated
climate of the Last Glacial maximum.
* The procedure will be to compare the different technics used, and see
what this implies for ocean heat transport.
------------------------------------------------------------------------------
VI. Ice sheet mass balance
------------------------------------------------------------------------------
Coordinators: Dave Pollard, Gerhard Krinner, Karl Taylor
* The objective of this subproject is to study the impact of the simulated
climate changes on ice-sheets.
* Procedure and tasks:
1. Diagnostic calculations will be carried out, using all PMIP simulations,
to study the net balance for each icesheet, in most models, for 0, 6, and
21 kyr.
A rather detailed description of the different methodologies, including a
brief questionnaire has already been sent to one member of each AGCM group
by Dave Pollard.
2. Global (x,y) fields of net annual sow/ice accumulation-ablation will be
plotted for most models, to see if any "initiation" is simulated.
3. Global fields of "potential" net balance (x,y,z), necessary to drive ice
sheet models, will be derived and studied for some models.
------------------------------------------------------------------------------
VII. Tropical climates, 21 kyr BP
------------------------------------------------------------------------------
Coordinator(s): ?
* The objective of this subproject is to study the impact of LGM
boundary conditions on the simulated climates of the tropics.
* Procedure and tasks:
1. Study the simulated changes in the african and asian monsoons. What is
the relative impact of the different prescribed boundary conditions?
2. Compare computed SSTs to fixed SSTs (CLIMAP).
3. Model-Data comparisons.
##############################################################################
MAILING LISTS FOR SUBPROJECTS
##############################################################################
# Mailing lists have been defined for each subproject. For those who have
registered on each list during the workshop: you will soon get an email
informing you that you are a "registered subscriber" and giving you
some information on how to use the mailing list.
# All lists have been defined and will be updated (maintained) at LMCE.
# The members of each subproject will be able to send messages to all the
other (registered) members of the group by sending an email to:
pmip_nameofsubproject-l@<list_is_no_more_in_use>
# The only persons allowed to send a message to a list or to retrieve
any related information (mails previously sent to the list and archived,
list of subscribers, ...) are those who have subscribed.
# If you want to join a mailing list (or remove your name from it)
you don't already subscribe to, you will
have to send an email to both the co-ordinator of the project and to:
"listman@<list_is_no_more_in_use>" at LMCE.
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Mailing lists and subscribers
------------------------------------------------------------------------------
* Climate sensitivity
..............................................................................
- mailing list: pmip-clim-l@<list_is_no_more_in_use>
- Subscribers:
Abe-Ouchi, Braconnot, Broccoli, Dong, Hewitt, Joussaume, Kislov, Kitoh,
Kutzbach, Loutre, McFarlane, Micthell, de Noblet, Oglesby, Oh, Otto-Bliesner,
Prentice, Ramstein, Rind, Schlesinger, Sloan, Syktus, Taylor, Vettoretti,
Webb
* Tropical climates, 6 kyr BP
..............................................................................
- mailing list: pmip-trop6-l@<list_is_no_more_in_use>
- Subscribers:
Abe-Ouchi, Bartlein, Braconnot, Dong, Harrison, Hewitt, Jolly, Joussaume,
Kislov, Kitoh, Kutzbach, Loutre, Masson, MacFarlane, Mitchell, de Noblet, Oh,
Otto-Bliesner, Rind, Syktus, Taylor, Valdes, Vettoretti, Webb
* Extra-tropics, 6 kyr BP
..............................................................................
- mailing list: pmip-hilat6-l@<list_is_no_more_in_use>
- Subscribers:
Abe-Ouchi, Bartlein, Guiot, Harrison, Hewitt, Joussaume, Kislov, Kitoh,
Krinner, Kutzbach, Masson, McFarlane, de Noblet, Oh, Pollard, Rind, Syktus,
Taylor, Valdes, Vettoretti
* Extra-tropics, 21 kyr BP
..............................................................................
- mailing list: pmip-hilat21-l@<list_is_no_more_in_use>
- Subscribers:
Abe-Ouchi, Bartlein, Guiot, Harrison, Hewitt, Joussaume, Kislov, Kitoh,
Krinner, Kutzbach, Masson, Oh, Otto-Bliesner, Ramstein, Rind, Sloan,
Syktus, Taylor, Valdes
* Ocean forcing
..............................................................................
- mailing list: pmip-ocean-l@<list_is_no_more_in_use>
- Subscribers:
Abe-Ouchi, Braconnot, Dong, Herterich, Hewitt, Joussaume, Kitoh, Kutzbach,
Lautenschlager, McFarlane, Oglesby, Oh, Otto-Bliesner, Pollard, Prentice,
Ramstein, Rind, Schlesinger, Sloan, Syktus, Taylor, Valdes, Vettoretti, Webb
* Ice-sheet mass balance
..............................................................................
- mailing list: pmip-ice-l@<list_is_no_more_in_use>
- Subscribers:
Abe-Ouchi, Broccoli, Dong, Herterich, Hewitt, Joussaume, Kislov, Kitoh,
Krinner, Kutzbach, Loutre, Micthell, Oglesby, Oh, Pollard, Ramstein, Rind,
Schlesinger, Sloan, Syktus, Taylor, Valdes, Verbitsky
* Tropical climates, 21 kyr BP
..............................................................................
- mailing list: pmip-trop21-l@<list_is_no_more_in_use>
- Subscribers:
Abe-Ouchi, Braconnot, Broccoli, Dong, Harrison, Hewitt, Jolly, Joussaume,
Kitoh, Kutzbach, Masson, Mitchell, Oh, Otto-Bliesner, Pollard, Prentice,
Ramstein, Rind, Sloan, Syktus, Taylor, Valdes, Webb
##############################################################################
PROPOSED LIST OF CORRESPONDENT FOR EACH AGCM
##############################################################################
The following list is preliminary and requires the approval of all of
you, especially those who are quoted below, before a specific mailing list,
similar to the ones described above, is assigned to it for convenience.
It should be used only when specific information is required regarding
the parameterizations developed in each AGCM.
The correspondents are asked to forward the
request to any member of their scientific team he/she thinks is the
most appropriate to answer the question. If we do not receive your
agreement/disagreement within the next 2/3 weeks, we will assume you
approve our choice.
* NAME * MODEL
*************************************************
* Kutzbach * CCM2
* Pollard * Genesis 2
* Taylor * Genesis / LLNL
* Broccoli * GFDL
* Rind * GISS II
* Schlesinger * UI model
* McFarlane * CCC
* Hewitt * UKMO
* Valdes * UGAMP
* Joussaume * LMD
* Herterich * ECHAM
* Kitoh * MRI II
* Oh * YONU
* Abe-Ouchi * CCSR / NIES
* McAvaney * BMRC 3.4
* Budd * MUGCM
* Syktus * CSIRO 4.6
* Loutre * 2-D LLNL
* Kislov * Moscow
*************************************************
##############################################################################
LIST OF THE WORKSHOP PARTICIPANTS
##############################################################################
LMCE Team: Laboratoire de Modelisation
du Climat et de l´Environnement
D.S.M. / Orme des Merisiers / Bat. 709
C.E. Saclay
91191 Gif-sur-Yvette cedex
FRANCE
Tel.: (33) 1 69.08.77.11
Fax.: (33) 1 69.08.77.16
email: pmipweb@lsce.ipsl.fr
* BRACONNOT Pascale
* JOUSSAUME Sylvie
* MASSON Valerie
* de NOBLET Nathalie
* RAMSTEIN Gilles
ABE-OUCHI Ayako Center for Climate System Research (CCSR)
University of Tokyo
4-6-1 Komaba, Meguro-ku
Tokyo, 153
JAPAN
Tel.: (81) 3 5453.3972
Fax.: (81) 3 5453.3964
email: abeouchi@ccsr.u-tokyo.ac.jp
BARTLEIN Patrick Department of Geography
University of Oregon
Eugene, Oregon 97403-1251
USA
Tel.: 1 (503) 346.4967
Fax.: 1 (503) 346.2067
email: bartlein@oregon.uoregon.edu
BROCCOLI Anthony J. NOAA / Geophysical Fluid Dynamics Laboratory
Princeton University
P.O. Box 308
Princeton, NJ 08542
USA
Tel.: 1 (609) 452.6671
Fax.: 1 (609) 987.5063
email: ajb@gfdl.gov
DONG Buwen Department of Meteorology
University of Reading
2 Earley Gate
Whiteknigts, P.O. Box 329
Reading RG6 2AU
UNITED KINGDOM
Tel.: (44) 734 87.5123 (ext. 4235)
Fax.: (44) 734 35.2604
email: swsdong@met.reading.ac.uk
GUIOT Joel Laboratoire de Botanique Historique et de Palynologie
Boite 451
Faculte de Saint-Jerome
13397 Marseille
FRANCE
Tel.: (33) 91.28.80.11
Fax.: (33) 91.28.86.68
email: guiot@frmop22.cnusc.fr
HARRISON Sandy P. Department of Physical Geography
Solvegatan 13
S-223 62 Lund
SWEDEN
Tel.dom: (46) 415.222.48
Tel.bur: (46) 46 222.9773
Fax.dom: (46) 415.220.31
email: lakes@dungbeatle.planteco.lu.se
HERTERICH Klaus Universitat Bremen
Fachbereich 5 - geowissenschaften
Postfach 330440
28334 Bremen
GERMANY
Tel.: (49) 421 218.47.23
Fax.: (49) 421 218.70.40
email: herterich@palmod.uni-bremen.de
HEWITT Chris Room H304, Hadley Centre
Meteorological Office
London Road
Bracknell
Berkshire RG12 2SY
UNITED KINGDOM
Tel.: (44) 344 85.4520
Fax.: (44) 344 85.4898
email: cdhewitt@email.meto.govt.uk
JOLLY Dominique Global Systems Group
Department of Ecology
Ecology Building, Lund University
Solvegatan 37
S-663 22 Lund
SWEDEN
Tel.: (46) 46 10.31.32
Fax.: (46) 46 10.44.23
email: djolly@dungbeatle.planteco.lu.se
KISLOV Alexandre Prof., Doc.Hon.
Department of meteorology and climatology
Geographical faculty of Moscow State University
senior scientist of Institute of Geography of Moscow
119899,Moscow, lenin Gory
RUSSIA
Tel.:
Fax.: 095 9328836
email: kislov@gis.geogr.msu.su
KITOH Akio Climate Research Department
Meteorological Research Institute
Nagamine 1-1, Tsukuba
Ibaraki
305 JAPAN
Tel.: (81) 298 53.8594
Fax.: (81) 298 55.2552
email: kitoh@mri-jma.go.jp
KRINNER Gerhard LGGE - CNRS
54 Rue Moliere, DU BP 96
F-38402 Saint Martin d'Heres Cedex
FRANCE
Tel.: (33) 76.82.42.64
Fax.: (33) 76.82.42.01
email.: gerhard@glaciog.grenet.fr
KUTZBACH John E. Director, Center for Climatic Research
University of Wisconsin
1225 West Dayton Street
Madison, WI 53706
USA
Tel.: 1 (608) 262.2839
Fax.: 1 (608) 262.5964
email: jekutzba@facstaff.wisc.edu
LAUTENSCHLAGER Michael Deutsches Klimarechenzentrum GmbH
Abt. Modellbetreuung
Bundesstrasse 55
D-2000 Hamburg 13
GERMANY
Tel.: (49) 40 411.73.297
Fax.: (49) 40 411.73.270
email: lautenschlager@dkrz.d400.de
LOUTRE Marie-Francoise Institut d'Astronomie et de Geophysique G. Lemaitre
Universite Catholique de Louvain
2 Chemin du Cyclotron
B-1348 Louvain-la-Neuve
BELGIUM
Tel.: (32) 10 47.3297 (or: 47.3299)
Fax.: (32) 10 47.4722
email: loutre@astr.ucl.ac.be
McFARLANE Norman A. Canadian Center for Climate Research
Atmospheric Environment Service
University of Victoria
3964 Gordon Head Road
Victoria, BC V8W 2Y2
CANADA
Tel.: (604) 363.8227
Fax.: (604) 363.8247
email: nmcfarlane@uvic.bc.doe.ca
MITCHELL John F. Meteorological Office
London Road
Bracknell
Berkshire RG12 2SZ
UNITED KINGDOM
Tel.: (44) 344 85.6613
Fax.: (44) 344 85.6912
email: jfbmitchell@email.meto.govt.uk
OGLESBY Robert J. Department of Earth and Atmospheric Sciences
Purdue University
West Lafayette, IN 47907
USA
Tel.: 1 (317) 494.9531
Fax.: 1 (317) 496.1210
email: oglesby@spring.atms.purdue.edu
OH Jai-Ho Forecast Research laboratory
Meteorological Research Institute
#2, Waryong-Dong, Chongno-Gu,
Seoul 110-360
KOREA
Tel.: (82) 2 765.7016
Fax.: (82) 2 351.4607
email: jho@iris.mri.re.kr
OTTO-BLIESNER National Center for Atmospheric Research
P.O. Box 3000
Boulder, CO 80307
USA
Tel.: 1 (303) 497.1723
Fax.: 1 (303) 497.1348
email: ottobli@ncar.ucar.edu
POLLARD Dave National Center for Atmospheric Research
P.O. Box 3000
Boulder, CO 80307
USA
Tel.: 1 (303) 497.1344
Fax.: 1 (303) 497.1348
email: pollard@ncar.ucar.edu
PRENTICE Colin Global Systems Group
Department of Ecology
Ecology Building, Lund University
Solvegatan 37
S-663 22 Lund
SWEDEN
Tel.dom: (46) 41 52.22.48
Tel.bur: (46) 46 10.41.76
Fax.dom: (46) 41 52.20.31
Fax.bur: (46) 46 10.44.23
email: colin@dungbeatle.planteco.lu.se
RIND David Goddard Institute for Space Studies / NASA
2880 Broadway avenue
New York, NY 10025
USA
Tel.: 1 (212) 678.5593
Fax.: 1 (212) 678.5552
email: cddhr@giss.nasa.gov
SCHLESINGER Michael Department of Atmospheric Sciences
University of Illinois @ Urbana-Champaign
105 South Gregory Avenue
Urbana, IL 61801
USA
Tel.: 1 (217) 333.2192
Fax.: 1 (217) 244.4393
email: schlesin@crg50.atmos.uiuc.edu
schlesin@uiatma.atmos.uiuc.edu
SLOAN Lisa Institute of Marine Sciences
University of California
Santa Cruz, CA 95064
USA
Tel.: 1 (408) 459.3693
Fax.:
email: lcsloan@rupture.ucsc.edu
SYKTUS Jozef I. CSIRO Division of Atmospheric Research
Private Bag No. 1
Mordialloc, Victoria 3195
AUSTRALIA
Tel.: (61) 3 586.7548
Fax.: (61) 3 586.7600
email: jis@dar.csiro.au
TAYLOR Karl E. Lawrence Livermore National Laboratory
P.O. Box 808, L-264
Livermore, CA 94550
USA
Tel.: 1 (510) 423.3623
Fax.: 1 (510) 422.7675
email: taylor13 (NEW! Please check the PMIP 'Contacts' web page)
VALDES Paul Department of Meteorology
University of Reading
2 Earley Gate
Whiteknigts, P.O. Box 329
Reading RG6 2AU
UNITED KINGDOM
Tel.: (44) 734 87.5123 (ext. 4235)
Fax.: (44) 734 35.2604
email: swsvalde@swssner1.reading.ac.uk
VERBITSKY Mikhail Department of Geology & Geophysics
Yale University
P.O. Box 6666
New Haven, CT 06511
USA
Tel.: 1 (203) 432.3159
Fax.: 1 (203) 432.3134
email: verb@milne.geology.yale.edu
VETTORETTI Canadian Center for Climate Research
Atmospheric Environment Service
University of Victoria
3964 Gordon Head Road
Victoria, BC V8W 2Y2
CANADA
Fax.: (604) 363.8247
email: guido@chinook.physics.utoronto.ca
WEBB Robert S. NOAA Paleoclimatology Program
National Geophysical Data Center
325 Broadway
Boulder, CO 80303
USA
Tel.: 1 (303) 497.6967
Fax.: 1 (303) 497.6513
email: rsw@ngdc.noaa.gov
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