"Waghorn" wrote in message
...
However, did it really cause changes to the regional/European
climate in
the years 1783, 1784 etc?

Yes,see
http://www.cosis.net/abstracts/EGU04...04-J-05244.pdf
and
Atmospheric impact of the 1783-1784 Laki Eruption: Part II Climatic
effect of sulphate aerosol
E. J. Highwood and D. S. Stevenson
ACP V3 Page(s) 1177-1189. SRef-ID: 1680-7324/acp/2003-3-1177
freely available at
http://www.cosis.net/members/journal...j_id=2&i_id=28

.... many thanks for those: I originally did not query the effect, then I
found a couple of years ago some remarks (haven't got the refs) that
cast doubt ... and the following in the CRU extract also is confusing:

" Benjamin Franklin, in 1783, first postulated that major volcanic
eruptions affect climate, after the eruption of the Laki volcano in
Iceland. Ironically, most of the ejected material from this eruption
remained in the lower parts of the atmosphere, so Franklin had the right
idea but the wrong volcano. "

These extracts you have posted though are later than the CRU information
sheet, so obviously follow-up work has confirmed the original (i.e.
Franklin) ideas for Laki specifically.

Whatever, a fascinating area of research and one of the teasing
'variables' in the GW debate!

Martin.


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