Sunday, December 11, 2011


From: "Michael E. Mann" <>
To: Scott Rutherford <>
Subject: Re: Soon & Baliunas
Date: Wed, 12 Mar 2003 11:07:43 -0500
Cc: Tom Crowley <>,Phil Jones <>, Malcolm Hughes <>,,,,

Thanks Scott,
I concur. We may want to try a few different alignment/scaling choices in the end, and
then just vote on which we like the best,
Anxious to here others' thoughts on all of this,
At 10:53 AM 3/12/2003 -0500, Scott Rutherford wrote:

Dear All,
First, I'd be willing to handle the data and the plotting/mapping. Second, regarding
Mike's suggestions, if we use different reference periods for the reconstructions and
the models we need to be extremely careful about the differences. Not having seen what
this will look like, I suggest that we start with the same instrumental reference period
for both (1856-1960). If you are willing to send me your series please send the raw
(i.e. unfiltered) series. That way I can treat them all the same. We can then decide how
we want to display the results.
Finally, Tom's suggestion of Eos struck me as a great way to get a short, pointed story
out to the most people (though I have no feel for the international distribution). My
sense (being relatively new to this field compared to everyone else) is that within the
neo- and mesoclimate research community there is a (relatively small?) group of people
who don't or won't "get it" and there is nothing we can do about them aside from
continuing to publish quality work in quality journals (or calling in a Mafia hit).
Those (e.g. us) who are engrossed in the issues and are aware of all the literature
should be able to distinguish between well done and poor work. Should then the intent
of this proposed contribution be to education those who are not directly involved in
MWP/LIA issues including those both on the perifery of the issue as well as those
outside? If so, then the issue that Phil raised about not letting it get buried is
significant and I think Eos is a great way to get people to see it.
On Wednesday, March 12, 2003, at 10:32 AM, Michael E. Mann wrote:

p.s. The idea of both a representative time-slice spatial plot emphasizing the spatial
variability of e.g. the MWP or LIA, and an EOF analysis of all the records is a great
idea. I'd like to suggest a small modification of the latter:
I would suggest we show 2 curves, representing the 1st PC of two different groups, one
of empirical reconstructions, the other of model simulations, rather than just one in
the time plot.
Group #1 could include:
1) Crowley & Lowery
2) Mann et al 1999
3) Bradley and Jones 1995
4) Jones et al, 1998
5) Briffa et al 200X? [Keith/Tim to provide their preferred MXD reconstruction]
6) Esper et al [yes, no?--one series that differs from the others won't make much of a
I would suggest we scale the resulting PC to the CRU 1856-1960 annual Northern
Hemisphere mean instrumental record, which should overlap w/ all of the series, and
which pre-dates the MXD decline issue...
Group #2 would include various model simulations using different forcings, and with
slightly different sensitivities. This could include 6 or so simulation results:
1) 3 series from Crowley (2000) [based on different solar/volcanic reconstructions],
2) 2 series from Gerber et al (Bern modeling group result) [based on different assumed
1) Bauer et al series (Claussen group EMIC result) [includes 19th/20th century land use
changes as a forcing].
I would suggest that the model's 20th century mean is aligned with the 20th century
instrumental N.Hem mean for comparison (since this is when we know the forcings best).
I'd like to nominate Scott R. as the collector of the time series and the performer of
the EOF analyses, scaling, and plotting, since Scott already has many of the series and
many of the appropriate analysis and plotting tools set up to do this.
We could each send our preferred versions of our respective time series to Scott as an
ascii attachment, etc.
thoughts, comments?
At 10:08 AM 3/12/2003 -0500, Michael E. Mann wrote:
Thanks Tom,
Either would be good, but Eos is an especially good idea. Both Ellen M-T and Keith
Alverson are on the editorial board there, so I think there would be some receptiveness
to such a submission.t
I see this as complementary to other pieces that we have written or are currently
writing (e.g. a review that Ray, Malcolm, and Henry Diaz are doing for Science on the
MWP) and this should proceed entirely independently of that.
If there is group interest in taking this tack, I'd be happy to contact Ellen/Keith
about the potential interest in Eos, or I'd be happy to let Tom or Phil to take the lead
At 09:15 AM 3/12/2003 -0500, Tom Crowley wrote:

Phil et al,

I suggest either BAMS or Eos - the latter would probably be better because it is
shorter, quicker, has a wide distribution, and all the points that need to be made have
been made before.

rather than dwelling on Soon and Baliunas I think the message should be pointedly made
against all of the standard claptrap being dredged up.

I suggest two figures- one on time series and another showing the spatial array of
temperatures at one point in the Middle Ages. I produced a few of those for the Ambio
paper but already have one ready for the Greenland settlement period 965-995 showing the
regional nature of the warmth in that figure. we could add a few new sites to it, but
if people think otherwise we could of course go in some other direction.

rather than getting into the delicate question of which paleo reconstruction to use I
suggest that we show a time series that is an eof of the different reconstructions - one
that emphasizes the commonality of the message.


Dear All,
I agree with all the points being made and the multi-authored article would be a
good idea,
but how do we go about not letting it get buried somewhere. Can we not address the
misconceptions by finally coming up with definitive dates for the LIA and MWP and
redefining what we think the terms really mean? With all of us and more on the paper,
it should
carry a lot of weight. In a way we will be setting the agenda for what should be being
over the next few years.
We do want a reputable journal but is The Holocene the right vehicle. It is
probably the
best of its class of journals out there. Mike and I were asked to write an article for
the EGS
journal of Surveys of Geophysics. You've not heard of this - few have, so we declined.
it got me thinking that we could try for Reviews of Geophysics. Need to contact the
board to see if this might be possible. Just a thought, but it certainly has a high
What we want to write is NOT the scholarly review a la Jean Grove (bless her soul)
just reviews but doesn't come to anything firm. We want a critical review that enables
agendas to be set. Ray's recent multi-authored piece goes a lot of the way so we need
to build on this.
At 12:55 11/03/03 -0500, Michael E. Mann wrote:
HI Malcolm,
Thanks for the feedback--I largely concur. I do, though, think there is a particular
problem with "Climate Research". This is where my colleague Pat Michaels now publishes
exclusively, and his two closest colleagues are on the editorial board and review editor
board. So I promise you, we'll see more of this there, and I personally think there *is*
a bigger problem with the "messenger" in this case...
But the Soon and Baliunas paper is its own, separate issue too. I too like Tom's latter
idea, of a more hefty multi-authored piece in an appropriate journal (Paleoceanography?
Holocene?) that seeks to correct a number of misconceptions out there, perhaps using
Baliunas and Soon as a case study ('poster child'?), but taking on a slightly greater
territory too.
Question is, who would take the lead role. I *know* we're all very busy,
At 10:28 AM 3/11/03 -0700, Malcolm Hughes wrote:
I'm with Tom on this. In a way it comes back to a rant of mine
to which some of you have already been victim. The general
point is that there are two arms of climatology:
neoclimatology - what you do based on instrumental records
and direct, systematic observations in networks - all set in a
very Late Holocene/Anthropocene time with hourly to decadal
paleoclimatology - stuff from rocks, etc., where major changes
in the Earth system, including its climate, associated with
major changes in boundary conditions, may be detected by
examination of one or a handful of paleo records.
Between these two is what we do - "mesoclimatology" -
dealing with many of the same phenomena as neoclimatology,
using documentary and natural archives to look at phenomena
on interannual to millennial time scales. Given relatively small
changes in boundary conditions (until the last couple of
centuries), mesoclimatology has to work in a way that is very
similar to neoclimatology. Most notably, it depends on heavily
replicated networks of precisely dated records capable of
being either calibrated, or whose relationship to climate may
be modeled accuarately and precisely.
Because this distinction is not recognized by many (e.g.
Sonnechkin, Broecker, Karlen) we see an accumulation of
misguided attempts at describing the climate of recent
millennia. It would be better to head this off in general, rather
than draw attention to a bad paper. After all, as Tom rightly
says, we could all nominate really bad papers that have been
published in journals of outstanding reputation (although there
could well be differences between our lists).
End of rant, Cheers, Malcolm
> Hi guys,
> junk gets published in lots of places. I think that what could be
> done is a short reply to the authors in Climate Research OR a SLIGHTLY
> longer note in a reputable journal entitled something like "Continuing
> Misconceptions About interpretation of past climate change." I kind
> of like the more pointed character of the latter and submitting it as
> a short note with a group authorship carries a heft that a reply to a
> paper, in no matter what journal, does not.
> Tom
> > Dear All,
> > Apologies for sending this again. I was expecting a stack of
> >emails this morning in
> > response, but I inadvertently left Mike off (mistake in pasting)
> >and picked up Tom's old
> > address. Tom is busy though with another offspring !
> > I looked briefly at the paper last night and it is appalling -
> >worst word I can think of today
> > without the mood pepper appearing on the email ! I'll have time to
> >read more at the weekend
> > as I'm coming to the US for the DoE CCPP meeting at Charleston.
> >Added Ed, Peck and Keith A.
> > onto this list as well. I would like to have time to rise to the
> >bait, but I have so much else on at
> > the moment. As a few of us will be at the EGS/AGU meet in Nice, we
> >should consider what
> > to do there.
> > The phrasing of the questions at the start of the paper
> >determine the answer they get. They
> > have no idea what multiproxy averaging does. By their logic, I
> >could argue 1998 wasn't the
> > warmest year globally, because it wasn't the warmest everywhere.
> >With their LIA being 1300-
> >1900 and their MWP 800-1300, there appears (at my quick first
> >reading) no discussion of
> > synchroneity of the cool/warm periods. Even with the instrumental
> >record, the early and late
> > 20th century warming periods are only significant locally at
> >between 10-20% of grid boxes.
> > Writing this I am becoming more convinced we should do
> >something - even if this is just
> > to state once and for all what we mean by the LIA and MWP. I think
> >the skeptics will use
> > this paper to their own ends and it will set paleo back a number of
> >
> >years if it goes
> > unchallenged.
> >
> > I will be emailing the journal to tell them I'm having
> >nothing more to do with it until they
> > rid themselves of this troublesome editor. A CRU person is on the
> >editorial board, but papers
> > get dealt with by the editor assigned by Hans von Storch.
> >
> > Cheers
> > Phil
> >
> > Dear all,
> > Tim Osborn has just come across this. Best to ignore
> >probably, so don't let it spoil your
> > day. I've not looked at it yet. It results from this journal
> >having a number of editors. The
> > responsible one for this is a well-known skeptic in NZ. He has let
> >
> >a few papers through by
> > Michaels and Gray in the past. I've had words with Hans von Storch
> >
> >about this, but got nowhere.
> > Another thing to discuss in Nice !
> >
> > Cheers
> > Phil
> >
> >>X-Sender:
> >>X-Mailer: QUALCOMM Windows Eudora Version 5.1
> >>Date: Mon, 10 Mar 2003 14:32:14 +0000
> >>To: p.jones@uea
> >>From: Tim Osborn <>
> >>Subject: Soon & Baliunas
> >>
> >>
> >>
> >>Dr Timothy J Osborn | phone: +44 1603 592089
> >>Senior Research Associate | fax: +44 1603 507784
> >>Climatic Research Unit | e-mail:
> >>School of Environmental Sciences | web-site: University of East
> >>Anglia __________| [1] Norwich NR4
> >>7TJ | sunclock: UK |
> >>[2]
> >
> >Prof. Phil Jones
> >Climatic Research Unit Telephone +44 (0) 1603 592090
> >School of Environmental Sciences Fax +44 (0) 1603 507784
> >University of East Anglia
> >Norwich Email
> >NR4 7TJ
> >UK
> >---------------------------------------------------------------------
> >-------
> >
> >
> >Attachment converted: Macintosh HD:Soon & Baliunas 2003.pdf (PDF
> >/CARO) (00016021)
> --
> Thomas J. Crowley
> Nicholas Professor of Earth Systems Science
> Dept. of Earth and Ocean Sciences
> Nicholas School of the Environment and Earth Sciences
> Box 90227
> 103 Old Chem Building Duke University
> Durham, NC 27708
> 919-681-8228
> 919-684-5833 fax
Malcolm Hughes
Professor of Dendrochronology
Laboratory of Tree-Ring Research
University of Arizona
Tucson, AZ 85721
fax 520-621-8229
Professor Michael E. Mann
Department of Environmental Sciences, Clark Hall
University of Virginia
Charlottesville, VA 22903
e-mail: Phone: (434) 924-7770 FAX: (434) 982-2137
Prof. Phil Jones
Climatic Research Unit Telephone +44 (0) 1603 592090
School of Environmental Sciences Fax +44 (0) 1603 507784
University of East Anglia
Norwich Email

Thomas J. Crowley
Nicholas Professor of Earth Systems Science
Dept. of Earth and Ocean Sciences
Nicholas School of the Environment and Earth Sciences
Box 90227
103 Old Chem Building Duke University
Durham, NC 27708
919-684-5833 fax
Professor Michael E. Mann
Department of Environmental Sciences, Clark Hall
University of Virginia
Charlottesville, VA 22903
e-mail: Phone: (434) 924-7770 FAX: (434) 982-2137
Professor Michael E. Mann
Department of Environmental Sciences, Clark Hall
University of Virginia
Charlottesville, VA 22903
e-mail: Phone: (434) 924-7770 FAX: (434) 982-2137

Scott Rutherford
University of Virginia University of Rhode Island
Environmental Sciences Graduate School of Oceanography
Clark Hall South Ferry Road
Charlottesville, VA 22903 Narragansett, RI 02882
phone: (434) 924-4669 (401) 874-6599
fax: (434) 982-2137 (401) 874-6811

Professor Michael E. Mann
Department of Environmental Sciences, Clark Hall
University of Virginia
Charlottesville, VA 22903
e-mail: Phone: (434) 924-7770 FAX: (434) 982-2137



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