RIEL seminar series
ONLINE ONLY: Groundwater sources for the Mataranka Springs
| Presenter | Dr. Sebastien Lamontagne | |
|---|---|---|
| Date |
|
|
| Time |
to
|
|
| Contact person | E: riel.outreach@cdu.edu.au | |
| Location |
Zoom (only) If you wish to attend this seminar please email riel.outreach@cdu.edu.au for the zoom link. |
|
| Open to | Public | |
The Mataranka Springs Complex of the NT is a unique groundwater-dependent ecosystem and the source of the dry season baseflow for the iconic Roper River. An environmental tracer study revealed that the springs are mainly fed via regional groundwater from the Cambrian Limestone Aquifer, local sources and an hitherto unrecognised deeper source. The implications of the findings for the proposed development of unconventional gas resources in the nearby Beetaloo Sub-basin will be discussed.
Dr Sebastien Lamontaigne is a hydrogeologist with CSIRO who uses environmental tracers (properties of the water molecule or compounds dissolved in water) to understand the origin of water (rainfall, river infiltration, etc.) and the time since a given water source has entered the water cycle. The latter is especially important to evaluate the sustainability of groundwater resources. Current applications include the evaluation of connectivity between geological formations in unconventional gas settings, aquifer recharge rates, groundwater - surface water interactions, and submarine groundwater discharge
Related Events
Carbon and water adventures in north Australia
Read more about Carbon and water adventures in north AustraliaWith climate change and increasing land use pressures there is more and more demand for knowledge of carbon dynamics and water use as well as water resource management. Lindsay’s research is focused on providing better understanding of the biophysical environment of tropical land and water systems.
From CCTV to AI
Read more about From CCTV to AIFish farms have historically been a black box in terms of understanding the behavioural needs and preferences of the fish within them, as the only chance to assess what they are up to is when they break the surface. Sunil has been monitoring fish behaviour below the surface of farms for 35 years.
Hidden emissions
Read more about Hidden emissionsIn this seminar, Clément will present results from a new database of greenhouse gas (GHG) concentrations and fluxes in tropical freshwater systems. He will highlight the extreme variability in GHG concentrations and fluxes across the tropics, and the role of small streams, ponds and riparian wetlands as globally significant hotspots of GHG emissions.
