An assessment of the quantity and extent of rubble was undertaken using the still images captured during the towed underwater video survey in June 2019 by Advisian Pty Ltd. The rubble data was spatially joined to the 5 x 5m reference grid cells. Each cell was manually checked and characterised according to the higest ranking level of rubble coverage.

For further information relating to the development and use of this data please refer to:

Section 6 - Physical Damage, sub section 6.1.4 Rubble priority remediation areas in:

Neale, S. J. and Boylson, B. D. 2019, Site Assessment Report - Douglas Shoal Remediation Project. Document 301001–02112-ENREP-0004, Revision 1. Report prepared by Advisian Pty Ltd for the Great Barrier Reef Marine Park Authority, Townsville, Queensland, Australia.