Monday, April 30, 2012


date: Sun, 6 Mar 2005 18:14:37 +0300 (MSK)
from: "olgasolomina" <>
subject: Glacier box - comments and suggestions

Dear Valerie, Keith, Eystein and Peck,

Here are my comments on the glaciers box and suggestions for some improvements. I apologize that I am commenting the text that I was supposed to write myself, but we all know the reason � it was done in a rush and I had very limited access to the literature in the fall. I spent two weeks in Lamont (just came back) and had opportunity to read more. I want to say that I very much appreciate the help and contribution from all people who saved the situation to get the draft for the ZOD, and I hope that we can sharpen it further now.

In general my main concerns are the following:

1. We are focusing on the continuous records, which is one of the main achievement of the last years, indeed. But the real continuous records come from Scandinavia only � even the Alps are mostly based on moraine datings (wood etc.). The records from FJL and Brooks Range are not continuous, they are just the same as in any other place in the World, presented as continuous curves. So, two potential strategies can be suggested � to forget the rest of the World and keep the picture Scandinavia and Alps only or add more discontinuos records drawn as curves. I would go for the second solution for obvious reason to keep the global prospective. I attach more curves that I got from publications + I asked Tom Lowell and Wibjorn Karlen to make something of this kind for NZealand and Africa. I suggest to focus in detail (with dates etc.)on the Scandinavian records (as we did in our text), but briefly discuss the general picture of Holocene glacier variations referring to the updated picture. I need your opinion before changing the graphics (see comments and suggestions in �Box comments SO� file)

2. During a good half of the Holocene the glaciers were SMALLER than now. I attach here the figure with the same axes as at the Valerie� picture (warmest/wettest periods), and the detailed comments on it. To be �scientifically correct� we probably can shade these periods for the regions that we are presenting at our figure (see a separate file �smaller than now� ). What is unusual about the modern retreat is the RATE, though we do not know much about the rate of the former retreat (again because of the lack of continuous records).

3. I changed the introduction. I believe that it is really important to keep the general prospective and mention the exceptions, namely glacier advances (at a Holocene global scale) reflect mostly temperature, therefore a kind of global synchroniety can be visible, though occasionally precipitation may trigger certain advances � maritime and tropical regions are likely to experience it more often than the rest of the World) . Two papers justifying this point of view appeared recently (Oerlemans, 2005, Mayewski et al., 2004) and deserve attention. I included the refs in the updated text. I am ready to discuss further this part, but I believe that we need changes here!

I am aware that this will require rather big changes in the text and figure, but I hope we are still at the stage when we can change, can we?

I will come soon with comments on the whole text and suggestions for the links to Ch4 (cryosphere), but I am really concern about those glaciers in the box, you know�


Thanks! Peck
>>Thanks a lot for the remaind. I (eventually!) got access to the
>>literature (in Columbia University where I am now) and will come
>>soon with comments and improvement of the etxt - at list concerning
>>the glaciers in the Holocene and last two millennia.
>>>Hi all - We have heard from a good number of you, but also have not
>>>heard from some of you. Please note the deadline for the first round
>>>of post-ZOD feedback was yesterday, and more is due next week. If you
>>>have not sent your material, or contacted us yet, please do so as
>>>soon as possible. A small delay is ok, but we need to hear from you
>>>in any case - please respond if you have not already done so.
>>>Thanks, Peck and Eystein
>>>>Date: Wed, 9 Feb 2005 11:15:25 -0700
>>>>From: Jonathan Overpeck <>
>>>>Subject: The next round of work is upon us - IMPORTANT
>>>>X-Attachments: :Macintosh HD:370627:Glossary WgI TARChap6.doc:
>>>>Greetings Chap 6 Lead Authors:
>>>>By now, the rush up to the ZOD is hopefully but a fond memory, and
>>>>you're ready to get back into the thick of IPCC chapter work. Both
>>>>Chapter 6 and the other chapters are now on the WG 1 website for all
>>>>of you to enjoy and critique. See your email from the WG1 TSU for
>>>>information on how to get ZOD chapters.
>>>>As you read our chapter, you will no doubt be thinking - "it's
>>>>really too bad we did so much at the last minute, and that the ZOD
>>>>is so rough." The science is in there, and you all did a great job,
>>>>but in the future, we won't have the luxury of sending an incomplete
>>>>draft to the TSU. The purpose of this email is to set a deliberate
>>>>pace to ensure that our FOD is as perfect and polished as possible.
>>>>Anything short of this will look bad to our colleagues, and will
>>>>cost us more work in the official post-FOD IPCC review process.
>>>>Please read all of this communication and NOTE the deadlines - we
>>>>are asking that you all respond quickly on a couple issues.
>>>>****1) Due as soon as you read this email - we would like to
>>>>consider a pre-May LA meeting involving all, or a sub-set of LAs,
>>>>and would like to know when you are available to meet for 2 days
>>>>(plus travel to/from US East Coast). The purpose would be to get
>>>>much further ahead with the FOD and to be able make the most of the
>>>>Beijing LA2 meeting in May. Remember how frustrating the Trieste
>>>>meeting was due to the lack of time. Please let us know if you are
>>>>available to meet April 12,13 (Tues/Wed) and April 19,20 (Tues/Wed).
>>>>We will pick the dates that work best. Funding would be handled in
>>>>the usual IPCC manner.
>>>>****2) Due February 24, 2005 - each person should read ALL of the
>>>>Chapter 6 ZOD. As you do this, please compiling a list of all the
>>>>issues/tasks you think need to be dealt with and completed before
>>>>the FOD. For example:
>>>>o what important issues or disagreements remain unresolved and what
>>>>needs to be done to resolve them?
>>>>o what work is needed to make the text better?
>>>>o what key (relevant) science is missing?
>>>>o what key references are missing or need to be updated?
>>>>o are there key display items that need to be deleted or added?
>>>>o what work is needed to make final draft display items?
>>>>Each LA should provide the above information to PECK and EYSTEIN on
>>>>a section-by-section basis by February 24. Please let us know NOW if
>>>>you can't meet this deadline.
>>>>****3) Due March 3, 2005 - (we have to meet a key IPCC deadline)
>>>>-Now that we have our ZOD, we have been requested to provide input
>>>>for the official IPCC AR4 Glossary. Please see the attached glossary
>>>>document, and follow the instructions included at the top of that
>>>>provide this information TO PECK AND EYSTEIN by March 3. Please let
>> >>us know NOW if you can't meet this deadline.
>>>>****4) Due March 10, 2005 - in Trieste, we assigned Chapter Liaisons
>>>>for each of the other WG1 chapters. This liaison list is attached
>>>>below. Please note that some of you are liaisons for more than one
>>>>other chapter. For each chapter for which you are liaison (and more
>>>>if you are so inspired), please compile:
>>>>o a list of substantive scientific suggestions for the LAs of that
>>>>chapter, particularly as they relate to Chapter 6 - don't get bogged
>>>>down in general editing.
>>>>o a list of issues that our Chapter 6 team must work on to ensure
>>>>compatibility with other chapters; in each case, describe the issue
>>>>and how you think it should best be resolved. Ideally, we can do
>>>>much of this before Beijing.
>>>>Each LA should provide the above information to PECK and EYSTEIN by
>>>>March 10. Please let us know NOW if you can't meet this deadline.
>>>>Lastly, we have some good news. As you all know, Bette Otto-Bleisner
>>>>did a great last-minute job in helping with section 6.4.2
>>>>(Equilibrium model evaluations), and has made it possible for us to
>>>>tap into PMIP2 in a much needed manner. We clearly need her
>>>>continued major contribution, and thus asked the IPCC WG1 Bureau to
>>>>appoint her to our LA team. Susan Solomon supported this request and
>>>>we recently received a positive response. So, welcome to the team,
>>>>PLEASE work hard to meet deadlines - I think we all know what
>>>>happens when deadlines are not met, and we cannot afford to miss
>>>>deadlines any longer.
>>>>Thanks, Peck and Eystein
>>>>Chapter Six - Paleoclimate
>>>>Cross-Chapter Liaisons
>>>>Frequency Asked Questions Stefan
>>>>Chapter 1. Historical Dominique (served on SAR)
>>>>Chapter 2. Radiation Dominique (trace gas, aerosol)
>>>> David (solar, volcanic, aerosol)
>>>>Chapter 3. Atmo Obs Keith
>>>> Ramesh
>>>>Chapter 4. Cyro Obs Dick (ice sheets
>>>> Olga (mountain ice)
>>>>Chapter 5. Ocean Obs. Jean-Claude
>>>> Eystein
>>>>Chapter 7. Biogeochem Fortunat (biogeochem)
>>>> Ricardo (veg dynamics)
>>>>Chapter 8. Model Eval Bette
>>>> Dick
>>>> Stefan
>>>> David
>>>>Chapter 9. Attribution David
>>>> Valerie
>>>> Keith
>>>>Chapter 10. Projections David
>>>> Stefan
>>>>Chapter 11. Regional Dan
>>>> Ramesh
>>>> Zhang
>>>> Overpeck
>>>>Jonathan T. Overpeck
>>>>Director, Institute for the Study of Planet Earth
>>>>Professor, Department of Geosciences
>>>>Professor, Department of Atmospheric Sciences
>>>>Mail and Fedex Address:
>>>>Institute for the Study of Planet Earth
>>>>715 N. Park Ave. 2nd Floor
>>>>University of Arizona
>>>>Tucson, AZ 85721
>>>>direct tel: +1 520 622-9065
>>>>fax: +1 520 792-8795
>>>Jonathan T. Overpeck
>>>Director, Institute for the Study of Planet Earth
>>>Professor, Department of Geosciences
>>>Professor, Department of Atmospheric Sciences
>>>Mail and Fedex Address:
>>>Institute for the Study of Planet Earth
>>>715 N. Park Ave. 2nd Floor
>>>University of Arizona
>>>Tucson, AZ 85721
>>>direct tel: +1 520 622-9065
>>>fax: +1 520 792-8795
>>Dr.Olga Solomina
>>Corresponding Member of Russian Academy of Sciences
>>Institute of Geography RAS
>>Moscow, Russia
>>tel: 007-095-125-90-11, 007-095-939-01-21
>>fax: 007-095-959-00-33
>Jonathan T. Overpeck
>Director, Institute for the Study of Planet Earth
>Professor, Department of Geosciences
>Professor, Department of Atmospheric Sciences
>Mail and Fedex Address:
>Institute for the Study of Planet Earth
>715 N. Park Ave. 2nd Floor
>University of Arizona
>Tucson, AZ 85721
>direct tel: +1 520 622-9065
>fax: +1 520 792-8795

Dr.Olga Solomina
Corresponding Member of Russian Academy of Sciences
Institute of Geography RAS
Moscow, Russia
tel: 007-095-125-90-11, 007-095-939-01-21
fax: 007-095-959-00-33

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