Staff profiles

Zara RawlinsonHydro-geophysicist


Hydrogeology and Geophysics

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Zara is a Hydro-geophysicist at GNS Science’s Wairakei Research Centre with a particular interest in the use of geophysics for subsurface imaging and property determination, as well as developing 3D subsurface geological and numerical models for groundwater applications. Zara’s background includes research focussed on mathematical inversion techniques, seismic signal processing and software/programme development. Recent work has focused on electromagnetic applications within groundwater research, particularly utilising the airborne SkyTEM system, including the planning, communicating, processing, and geophysical and hydrogeological modelling aspects of these projects.


  • MSc, Geophysics
  • BSc, Geophysics and Mathematics
  • MRes, Geophysics and Wave Interferometry

Areas of expertise

  • Geophysics: Seismology
  • Geophysics: Mathematical inversion techniques
  • Geophysics: Applications of statistics
  • Geology: 3D modelling
  • Geology: GIS
  • Geology: Hydrogeology
  • Geophysics: Code development
  • Geophysics: Airborne EM Interpretation
  • Groundwater: Groundwater Geology
  • Geophysics: Resistivity Interpretation
  • Geophysics: Seismic interferometry
  • Technical: Mathematical and numerical modeling

Major Publications

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  • Rawlinson, Z.J.; Reeves, R.R.; Westerhoff, R.S.; Foged, N.; Pederson, J.B.; Kellett, R.L. 2022. Hawke’s Bay 3D Aquifer Mapping Project: Ruataniwha Plains SkyTEM data processing and resistivity models
  • Rawlinson, Z.J.; Westerhoff, R.S.; Kellett, R.L.; Pederson, J.B.; Maurya, J.B.; Foged, N. 2021. Hawke’s Bay 3D Aquifer Mapping Project: Poukawa and Otane Basin SkyTEM data processing and resistivity models
  • Rawlinson, Z.J.; Foged, N.; Westerhoff, R.S.; Kellet, R.L. 2021. Hawke’s Bay 3D Aquifer Mapping Project : Heretaunga Plains SkyTEM data processing and resistivity models
  • White, P.A.; Moreau, M.; Mourot, F.; Rawlinson, Z.J. 2019. New Zealand Groundwater Atlas : hydrogeological-unit map of New Zealand
  • Westerhoff, R.S.; Dark, A.; Zammit, C.; Tschritter, C.; Rawlinson, Z.J. 2019. New Zealand Groundwater Atlas : groundwater fluxes
  • Westerhoff, R.S.; Tschritter, C.; Rawlinson, Z.J. 2019. New Zealand Groundwater Atlas : depth to hydrogeological basement
  • Moreau, M.; White, P.A.; Mourot, F.; Rawlinson, Z.; Tschritter, C.; Cameron, S.G.; Westerhoff, R.S. 2019. Classification of New Zealand hydrogeological systems DOI: 10.21420/42QW-MC74.
  • Westerhoff, R.S.; White, P.A.; Rawlinson, Z.J. 2018. Incorporation of satellite data and uncertainty in a nationwide groundwater recharge model in New Zealand, Remote Sensing 10(1): article no. 58. DOI: 10.3390/rs10010058.
  • Rawlinson, Z.J.; Toews, M.W.; Gyopari, M.; Moore, C.R. 2017. Results of Ruamahanga groundwater flow and transport modelling for the Ruamahanga Whaitua Committee : business as usual (BAU), silver and gold scenarios
  • Tschritter, C.; Westerhoff, R.S.; Rawlinson, Z.J.; White, P.A. 2017. Aquifer classification and mapping at the national scale - phase 1 : identification of hydrogeological units DOI: 10.21420/G2101S.
  • Tschritter, C.; Rawlinson, Z.J.; Barrell, D.J.A.; Alcaraz, S.A. 2016. Three-dimensional geological model of Environment Southland's area of interest for freshwater management
  • Ravasi, M.; Meles, G.; Curtis, A.; Rawlinson, Z.J.; Yikuo, L. 2015. Seismic interferometry by multidimensional deconvolution without wavefield separation, Geophysical Journal International 202(1): p. 1-16. DOI: 10.1093/gji/ggv062.
  • Rawlinson, Z. 2013. A review of the most effectual and economical geophysical techniques for characterising groundwater within New Zealand
  • Rawlinson, Z.J.; Townend, J.; Arnold, R.; Bannister, S. 2012. Derivation and implementation of a nonlinear experimental design criterion and its application to seismic network expansion at Kawerau geothermal field, New Zealand, Geophysical Journal International 191(2): p. 686-694. DOI: 10.1111/j.1365-246X.2012.05646.x.