Wednesday 13 – Friday 15 June 2018 | International Convention Centre, Sydney

Dr David Allen

Geophysicist, Groundwater Imaging Pty Ltd

Dr David Allen

Geophysicist, Groundwater Imaging Pty Ltd

Dr David Allen has 25 years experience applying geophysical surveying to diverse applications ranging from seepage investigation, groundwater bore siting, groundwater studies around coal mines, blast overburden mapping and the direct detection of ores of metals.

David owns Groundwater Imaging Pty Ltd based in Dubbo, NSW and aspires to instigate many more efficient applications of geophysics into precision agriculture and water management.

Where: International Convention Centre, Sydney – Room E5.7

When: Day 2 – Thursday, 14 June 2018, 9.30 – 10.00

Abstract Outline: Seepage is not uniform. Seeped water generally follows distinct pathways once in the ground. These pathways can be found and managed to benefit if generic geophysical technology and methods are carefully adapted to the task. The whole idea works better at a regional scale, mapping not only the problem seepage but also areas where seepage does not occur. It is only when an area is fully mapped that many of the contrasts are clearly revealed. A montage effort is often required, integrating many datasets collected with different instruments. Sludge thickness can also be mapped in the same effort as can canal slopes and cross sections. Similarly for dams.

Once seeped soil moisture is mapped, opportunities for use of the pathways of seepage as conduits for transportation and for buffer storage for re-extraction during droughts is possible. Water infrastructure has to be designed to take advantage of these possibilities and this can only happen if the law is adapted to facilitate beneficial ownership of and access to seeped water. Waterlogging and deep drainage problems are solved in the same effort.

© Irrigation Australia Exhibition & Conference | Organised by Exhibitions and Trade Fairs | Privacy Statement | Terms Of Use