Webinars

Past webinars

Impacts of proposed coal mining developments on spring ecosystems

Click here to register.

Thursday May 12 2016

The English word ‘oasis’ describes an island of life in a barren landscape and was initially applied to desert spring ecosystems fed by groundwater. These mythological ecosystems are most intact in Australia where they contain many organisms known from nowhere else on the planet.

The proposal to develop the Galilee Basin coal deposits presents a new threat to spring ecosystems. I will be explaining the nature of the springs, the fossil resources and the groundwater with which they are associated, and how impacts can be predicted using the Doongmabulla Springs near the proposed Carmichael Coal Mine as an example.

Rod Fensham has published extensively on ecology and conservation directed towards the preservation of ecosystems and plant species, particularly in Queensland. He has been working on spring ecosystems for 20 years and has managed to contribute to their conservation through publicity, reserve acquisition and public policy.


Reedy Creek Aquifer Injection Scheme - video recording unavailable

 

Presented by Ryan Morris (Origin Energy)
24 March 2014

 

The Reedy Creek Aquifer Injection Scheme is Australia’s largest treated water managed aquifer recharge scheme. With a treatment capacity of 40ML/day and twelve injection bores, it is the sole management solution for the co-produced water from over 300 coal seam gas wells. The bores are over 1,200m deep at target the Precipice Sandstone of the Great Artesian Basin. Injection commenced in early 2015 and over 5.5GL has been injected to date.


Using the Bureau's Groundwater Information Suite
Presented by Eloise Nation and John Sharples (Bureau of Meteorology)
18 February 2016

Watch the recording of the webinar

This webinar examines how to access, use, search, and download groundwater data from the Bureau of Meteorology's Groundwater Information Suite. It focussed on the Australian Groundwater Explorer and newly launched Australian Groundwater Insight.

Improving Adelaide’s Groundwater Management for Managers & Decision Makers
Presented by Prof. Okke Batelaan & Dr. Etienne Bresciani
2 December 2015

Watch the recording of the webinar

Groundwater is a strategic and vital resource in South Australia playing a crucial role in sustaining a healthy environment, as well as supporting industries and economic development. In the Adelaide metropolitan region ten different aquifer units have been identified, extending to more than 500 m below sea level. Although salinity within most of these aquifers is variable, water suitable for commercial, irrigation and/or potable use is predominantly found in the deeper Tertiary aquifers. Major industries, market gardeners, golf courses, and local councils are highly dependent on this resource. Despite recent rapid expansion in managed aquifer recharge, little is known about the sources and ages of Adelaide’s groundwater.

Introduction to Integrated Hydrologic Modelling with HGS
Dr. Ed Sudicky & Dr. Steven Frey (Aquanty)

Watch the recording of the webinar

HydroGeoSphere (HGS) is a three-dimensional control-volume finite element simulator which is designed to simulate the entire terrestrial portion of the hydrologic cycle. It uses a globally-implicit approach to simultaneously solve the 2D diffusive-wave equation and the 3D form of Richards’ equation.

Groundwater Modelling: An Introduction
Presented by Dr. Michael Teubner
10 December 2014

Watch the recording of the webinar

By definition, groundwater cannot be seen and, in general, its flow cannot be measured. An understanding of groundwater and its movement is generally obtained by collecting water level data in the field and making interpretations and extrapolations with these data. Groundwater modelling is an integral part in understanding groundwater conditions and how they have changed in the past and may be predicted to change into the future.

Groundwater-dependent ecosystems
Presented by Professor Derek Eamus
26 August 2016

This webinar examined trends in global drought and forest mortality and the application of remote sensing techniques. It will also summarise the results of a recent comparative study of leaf, whole tree and canopy woodland ecophysiology along a pronounced depth-to-groundwater gradient that has generated an ecosystem-scale response function to differences in depth-to-groundwater.

Establishing social capital based on trust: using research to do it better
Presented by Professor Allan Curtis
10 July 2014

In this presentation Professor Allan Curtis drew on NCGRT research in the groundwater and fire management arenas to provide a coherent framework for practitioners to build and evaluate relationships based on trust.

Tight aquitards and leaky aquitards – a tool box for projects evaluating vertical 
Presented by Dr. Wendy Timms (UNSW)}
20th May 2014

Increasing attention on low permeability strata (aquitards) has led to advances in understanding and development of improved assessment techniques. Aquitards can limit potential impacts of depressurization that is associated with underground resource extraction associated with mining and coal seam gas (CSG) development. Aquitard studies in a number of geological settings indicate that multi-scale and multi-disciplinary assessments are essential. 

Seawater intrusion based on the analytical methods
Professor Otto Strack
11 April 2014

Watch the recording of the webinar

Visiting Professor Otto Strack from the Univeristy of Minnesota and creator of the Analytic Element Method focussed on his classical work on coastal aquifers in which he has used the sharp-interface approximation to derive analytical equations that give the geometry of the seawater-freshwater interface.

Fibre Optic Methods for Measuring Temperatures in Natural Environments
Presented by Dr. Margaret Shanafield
1 April 2014

This webinar presented some background on the use of fibre optic distributed temperature sensing (or FO-DTS) in a variety of natural settings. It highlighted the recent uses of this rapidly evolving and cutting edge technique to measure temperatures in Australian systems, including our development of the method for evaluating flow in fractured rock systems, as well as for streambed water flow.