The AVTIS project was funded by NERC, with the instrumentation development work carried out by St Andrews (Dr David Macfarlane, Dr Duncan Robertson) and the volcanological modelling and data analysis split between the University of  Reading (Prof. Geoff Wadge, Dr Alina Hale, Henry Odbert) and Lancaster University (Prof. Harry Pinkerton, Dr Mike James, Dr Rhian Burrell, Jane Applegarth)

Special thanks to Patrick Beasley of QinetiQ for the loan of the ALPHA antenna and ELVA-1 of St Petersburg for their help and assistance with technical problems, especially during our first trip to Montserrat.

Fieldwork would not have been possible without the help and assistance of a large number of people:

MONTSERRAT FIELD WORK

At the Monsterrat Volcano Observatory: Dr Sue Loughlin, Dr Gill Norton, Dr Peter Dunkley, Mick Strutt and Dr Graham Ryan to name but a few. A big thanks to the all of the staff at MVO for their time, patience and use of the workshop facilities (!). We are also grateful for the skill and experience of the helicopter pilots with Carribean, (2005) and Bajan (2004) Helicopters in getting us to where we needed to be: thanks guys!

COSTA RICA FIELD WORK

Dr Elicier Duarte, Eric Fernandez and Rodolfo van der Laat of OVSICORI-UNA for their help on our field trip and for keeping us up to date on Arenal. Dr Paul Cole and Delioma Oramus (Coventry Univeristy) for the loan of their GPS in Costa Rica We are also grateful for assistance with the import and export of AVTIS from Dr Maurico Mora at the Universidad de Costa Rica on particularly short notice.