1. University of Edinburgh, School of GeoSciences, Grant Institute, West Mains Road, Edinburgh EH9 3JW, United Kingdom and WesternGeco Oslo Technology Centre, Solbraveien 23, 1383, Norway. .
2. University of Edinburgh, School of GeoSciences, Grant Institute, West Mains Road, Edinburgh EH9 3JW, United Kingdom..
3. WesternGeco Oslo Technology Centre, Solbraveien 23, 1383, Norway. .