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Johanna Hanson

Studying towards a PhD in Geological Sciences

23 November 2023
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Location: Ernest Rutherford 262

 

My current research utilises a multiproxy approach to understanding the marine and terrestrial links of three shallow-marine locations around Horomaka | Banks Peninsula. These are Te Whakaraupō | Lyttelton Harbour, Kawatea | Okains Bay and Te Wairewa | Lake Forsyth. Combining micro-fossil (palynology and foraminiferal analysis) and geochemistry, past environmental changes pre- and post- human arrival will be determined, which will provide a long-term ecological baseline for conserving and/or restoring the local environment. Throughout my thesis I am also aiming to create a Holocene sea level curve and also a sea surface temperature record for Horomaka.

 
Supervisors:

Primary Supervisor: Catherine Reid
Co-Supervisor: Jamie Shulmeister
Additional Supervisor: Matiu Prebble

 
Research Interests

Palaeoclimate
Palaeoecology
Geochemistry
Data science
Geochronology
Environmental change pre- and post- human arrival
Sea level change

 
Working thesis title

Investigating the marine-terrestrial interface of Te Whakaraupō | Lyttelton Harbour, Banks Peninsula, New Zealand over the Holocene

 
Academic History

Bachelor of Science (Honours first class) in Geology at The University of Queensland, Australia
Bachelor of Science, Extended major in Archaeological Sciences at the University of Queensland, Australia

 
Professional History

My research concerns the future conservation of freshwater and intertidal environments by determining formation conditions, processes and sensitivity to past climate change and human land management. I am interested in Quaternary palaeoenvironmental reconstruction using a multiproxy approach, in particular palynology, foraminiferal analysis and geochemistry, to reconstruct past vegetation and climate variability, sea level variations and the environmental impact caused by anthropogenic activity. My previous research has included palaeoecological, geochemical and sedimentological analyses of sediment cores to determine past climate, vegetation, impacts of sea level variability and human alteration from subtropical patterned fen complexes and wetland ecosystems in Southeast and Central Queensland.

 
Publications

Patton, P.R., Shulmeister, J., Hua, Q., Almond, P., Rittenour, T.M., Hanson, J.M., Grearly, A., Gilroy, J., Ellerton, D. 2023, “Reconstructing Holocene fire records using dune foot-slope deposits at the Cooloola Sand Mass, Australia”, Quaternary Research, pp. 1-23.
DOI: https://doi.org/10.1017/qua.2023.14

Hanson, J.M., Welsh, K.J., Moss, P.T., Gadd, P. 2023, “Implications of sea level variability on the formation and evolution of subtropical Rainbow Beach patterned fen complexes, Queensland, Australia”, The Holocene, vol. 33, no. 1, pp. 49-60.                                                     
DOI: https://doi.org/10.1177/09596836221126120

Hanson, J.M., VanderGragt, M.L., Welsh, K.J., Moss, P.T. 2022, “Variations in wetland conditions within the Fitzroy Basin, north-eastern Australia: a palaeoecological approach”, Marine and Freshwater Research, vol. 73, no. 1, pp. 35-47. DOI: https://doi.org/10.1071/MF21082

 
Presentations

Hanson, J.M. 2023, ‘Investigating the marine-terrestrial interface of Te Whakaraupō over the late Holocene’, Friends of the Pleistocene seminar series (Geoscience Society of New Zealand).

 
Selected Conference Proceedings

Hanson, J.M., Reid, C., Shulmeister, J., Prebble, M., Zawadzki, A., Hua, Q., Moy, C. 2023, “Reconstructing past environmental change over the Holocene through marine and terrestrial proxies at Lyttelton Harbour, Banks Peninsula, New Zealand”, International Union of Quaternary Research (INQUA) conference oral presentation.

Hanson, J.M., VanderGragt, M.L., Welsh, K.J., Moss, P.T. 2023, ‘Reconstructing wetland histories over the last ~1,000 years within the Fitzroy Basin, Central Queensland, Australia’, Freshwater Sciences, presented by Patrick Moss on Johanna Hanson’s behalf.

Hanson, J.M., Reid, C., Prebble, M., Shulmeister, J., Moy, C., Zawadzki, A., Hua, Q. 2022, “Late Holocene environmental change of Te Whakaraupō | Lyttelton Harbour, New Zealand”, Australasian Quaternary Association (AQUA) conference oral presentation.

Hanson, J.M., Reid, C., Prebble, M., Shulmeister, J., Moy, C., Hua, Q., Zawadzki, A. 2022, “A preliminary study of late Holocene sedimentary records from Te Whakaraupō | Lyttelton Harbour, New Zealand”, Geoscience Society of New Zealand (GSNZ) poster presentation.

Hanson, J.M., Welsh, K.J., Moss, P.T. 2020, “Controls on the formation and evolution of the patterned fen complex from Cooloola, Great Sandy National Park”, AQUA pop-up e-conference.

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