Digital Twins for Groundwater Resilience in the Pacific

Interview for Westpac Research Fellowship

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October 2nd, 2025; Dr. Sia Ghelichkhan

available at: www.sia-g.com/talks/

About me

\Omega : Optimised Modelling of Groundwater (CRC 500K)

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Aus Centre of Excellence for Antarctic Sciences (ACEAS)

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Digital Twins for Groundwater Resilience in the Pacific

Family
  • Tenure-track Faculty - ANU (2023-present)
  • ARC DECRA Fellow - Sea Level Reconstruction
  • JG Russell Award nominee
  • Passionate about bridging cutting-edge mathematics so solve real world challenges

Fresh water

SurfaceWater

Groundwater

SurfaceWater
  • 98% of global freshwater budget is groundwater.
  • … key to resilient futures for water resource management.
  • … estimated 20% of agricultural consumption in Australia.
  • … often the sole source of freshwater in many places.

Groundwater in the Pacific

SurfaceWater

Ocean vs Freshwater Lens

SurfaceWater
  • A delicate balance

  • Over-pumping of groundwater

Ocean — Freshwater Lens with Sea Level Rise

SurfaceWater
  • A delicate balance

  • Over-pumping of groundwater

  • Sea level rise represent an often overlooked factor.

Why Westpac Scholars Trust?

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Alignment with WRF in:

  • Sustainability

  • Australia’s relationship with Asia-Pacific

  • Access to leadership training (Peter Cullen Trust)
  • An opportunity to go out of one’s comfort zone to engage with policy maker and decision makers.
  • Mentorship and collaboration opportunities through the engagement with the trust
  • A unique opportunity for a postdoctoral fellow in my team to establish digital twins for groundwater modelling in selected pacific islands (Solomon Islands, Fed. States of Micronesia).

Leaving you with a brain map …

mindmap
  root((Westpac Fellowship Interview))
    About Me
      World leader in inverse methods for large scale simulations
      DECRA fellow - Top Applicant in Sciences
      Tenure Track at ANU
      Community Leader in developing methods
    Research Project
      Digital Twins for Groundwater Resilience in the Pacific
      Extension of OMEGA Platform to the Oceanic Islands
      Relying on Future Sea-Level Rise Scenarios
    How it aligns with WRF?
      Sustainable Futures
      Australia's Role in the Pacific
      Edging Technology in Climate Modelling
    Why I chose WRF?
      Unique Opportunity for Leadership Growth
      A full-time postdoctoral opportunity in my group