Saturday, March 17, 2012


date: Tue Sep 22 13:37:25 1998
from: Keith Briffa <>
subject: advice on manuscript K08434

this is in confidence
>Return-path: <>
>Delivery-date: Tue, 22 Sep 1998 12:34:02 +0100
>From: "VanDecar, John" <>
>To: "''" <>
>Subject: advice on manuscript K08434
>Date: Tue, 22 Sep 1998 12:33:04 +0100
>Dear Keith,
> I am writing in the hope that you may be able to provide some advice
>on a manuscript submitted to Nature by Douglas Keenan, entitled "The
>300-year upheaval induced by the eruption of 2037 BC, and regional
>radiocarbon disparities".
>The first paragraph of the paper follows:
>"Several researchers have previously identified a climatic upheaval in
>tropical North Africa and south-western Asia that began just over 4000
>years ago and lasted for about three centuries. We argue here that the
>upheaval included Europe, the North Atlantic, and probably most of the
>world, that the principal climatic mechanism was an extremely high phase
>of the North Atlantic Oscillation, and that it was likely the largest
>climatic upheaval since the ice ages. The full scope of the upheaval has
>previously been missed in part because radiocarbon dates from some areas
>are centuries too early: palaeoclimatic events in different areas thus
>appeared asynchronous. The cause of the radiocarbon-dating disparities
>is identified as a regional deficiency in 14C, and we locate the
>region's source of 14C-deficient carbon. The upheaval as previously
>identified is known to have occurred shortly after a volcanic eruption.
>A companion paper proposes that the eruption was colossal and dates it
>to 2037 +/- 1 BC. Here we suggest how the eruption acted as a trigger
>for the upheaval"
> Is this a paper that you would be willing to review for us? If so,
>please let me know as soon as possible, and I will send it to you. To be
>honest, we are not completely sure that the paper is not somewhat
>fanciful, so if you felt that it did not deserve a detailed review, a
>short report describing the main areas of deficiency would be adequate.
> Many thanks in advance for whatever help you are able to give me, and
>I hope to hear from you soon.
>Best wishes,
>John VanDecar
> / +44 171-843-4545 / fax +44 171-843-4596
> Nature Nature
> 4 Crinan Street 968 National Press Building
> London N1 9XW England Washington, DC 20045-1938 USA

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