Can I recommend you chase up the following reference;
Volcanic Ash and Aviation Safety. Procedings of the First International
Symposium on Volcanic Ash and Aviation Safety. US Geological Survey
Bulletin 2047.
I am sorry I haven't got a date for it.
Maybe you could try the Australian Bureau of Meteorolgy as I know they have
a special program which was initially funded by Qantas to predict volcanic
activity. Although we have no active volcanoes in Australia, there is a rim
of activity especially through Indonesia, Malaysia, Phillipines and PNG
which sits beneath a large proportion of Qantas' international routes.
Hope this helps.
ps. Nice to see the discussion widen a little to include some of the
problems CRM is there to help solve.
Graham R. Braithwaite
Research Associate
Department of Aviation
University of New South Wales
Sydney 2052
Australia
Tel. + 61 (0) 2 9385 2806 (work)
Tel. + 61 (0) 414 736 467 (mobile)
Tel. + 61 (0) 2 9314 5061 (home)
Fax. + 61 (0) 2 9385 1072 (work)