Thursday, March 22, 2012

2736.txt

date: Wed, 13 Oct 2004 12:55:55 +0400
from: "Olga Solomina" <solominaatXYZxyz.ru>
subject: Re: [Wg1-ar4-ch06] IPCC last 2000 years data
to: "Keith Briffa" <k.briffaatXYZxyz.ac.uk>

Hi Keith,

I am planning to send you (and Valerie for the Holocene) an overwiew of
glacier variations (global) basing on the best dated series and will try to
discuss it in realtion with the high resolution continious proxies from the
same regions + the list of the most important publications with the short
abstracts - in case you want to get a different information from the
original publications. - Is this OK with you?

I was involved in the PDO project with Lamont, so if you want the PDO stuff
I can get help from there (on the other hand, this can be easily covered by
Riccardo).

I'll try to cover the models also, though if we want to go into details here
I'll need to contact Oerlemans (that I can easily do, too).

So far I asked some people to send me the recent publications (Wiles,
Grove), but did not ask officialy for any help with writing.

I like the idea of separate diagramms for tropics, temperate and high
latitudes and the Holocene together with the blown-up 2000 years.

Regards,
olga


----- Original Message -----
From: "Keith Briffa" <k.briffaatXYZxyz.ac.uk>
To: <wg1-ar4-ch06atXYZxyzs.ucar.edu>
Sent: Monday, October 11, 2004 8:00 PM
Subject: [Wg1-ar4-ch06] IPCC last 2000 years data


> Friends and authors ( especially Ricardo, Olga, Fortunat, David, Ramesh,
> Zhang, Dan, Eystein and Valerie)
> Now back from travels (until Wednesday when off to Austria for a few days)
> I thought it best to suggest a break down for the writing of the data
> section for the last 2000 years of the IPCC palaeoclimate chapter. Please
> see the outline produced at the meeting. We have 4 IPCC pages . I will
> write a short intro linking to the instrumental data with links to
Chapters
> 3-5. I will coach this in a general introduction to this section that
> addresses the points listed in the initial notes ( namely how we use the
> various high , and few low, resolution data to construct regional and
> large-scale temperature variability , and where possible, gain insight
into
> hydrologic variability. I will say we use models to get insight into
> methodology and to explore regional coverage and seasonality issues and we
> use control and forced model runs to look at sensitivity and detection
> issues , but also use date to test model variability and sensitivity .
> I can first go at the NH (SH) Spaghetti diagram discussion and hopefully
> you will pick up the regional aspects of the temperature and precipitation
> (moisture) variability .
> Rather than me say - I would like you to come back with the major areas
you
> will cover , but these may best be done in terms of climatologically
> meaningful regions - ie relating to the ENSO, NAM, PDO , AAO, monsoon
areas
> - then we could fill in the remaining regions if significant non overlap
in
> areas is apparent (Eurasia, non-monsoon china etc) . We do not want a list
> of every paper ever written , but a selection of (the better) work that
you
> feel has regional relevance (and some length presumably). THe other
> alternative is just to divide up the world to our own regions and then
> discuss the climate indices separately. This would likely be easier to do
.
> Let me know what you think. Either way , we also should have a specific
> discussion of forcings at high resolution , and Fortunat, Valerie could
> cover solar and volcanic , perhaps Eystein discussing what evidence there
> is for THC change . The knotty issue of THC versus NAO and the link to
> model theories/models could go here - or perhaps later in the section
> 6.4.3.2 ? Davis what say you about this? The same is true of ENSO links to
> terrestrial precipitation patterns and temperature?
> I don't like the idea of dealing wit quasi periodicities separately , but
> rather wit the regional discussions eg North American drought. The
> question of LIA , MWP will come up in the large scale average discussion
> but you can also address it in the regional discussions , but in a
critical
> and quantitative way. I would like to see the evidence for
extremmes/abrupt
> change from the regional syntheses and then see if we have enough to
define
> and discuss the issue separately. Olga could you pick up on the glacial
> variations (perhaps with links to models also?)
>
> So come back to me asap to let me know impressions and regional/variable
> focus you all wish to pick up. Ricardo will obviously do North South
> linkages as per the PEP1 transect , but what about along PEP2 and 3/ WE
may
> have to pick this up in the light of the regional data. Can you also let
me
> know if/who you might be asking to help with writing . Peck , I would
still
> rather have Mike Mann in , so what is the story here - can I ask him?
> Suggestions for summary Figures still welcome - I would like to have a
High
> lat , mid lat , low lat transect type figure for temperature , possibly
> along each PEP transect - with longest instrumental data . A forcing
> diagram is also a must - but could combine Holocene and "blow up " last
> 2000 years.
>
> Best wishes
> Keith
>
> --
> Professor Keith Briffa,
> Climatic Research Unit
> University of East Anglia
> Norwich, NR4 7TJ, U.K.
>
> Phone: +44-1603-593909
> Fax: +44-1603-507784
>
> http://www.cru.uea.ac.uk/cru/people/briffa/
>
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