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PhD: Pollen-based Reconstructions of UV Radiation History

Project Title

Pollen-based Reconstructions of UV Radiation History


Massey University

Supervisors and Institutions

Dr Kat Holt, Massey University, New Zealand. Dr Ben Liley, NIWA, New Zealand. Dr Marcus Vandergoes, Institute of Geological and Nuclear Sciences, New Zealand. Dr Barry Lomax, University of Nottingham England. Dr Phil Jardine, University of Munster, Germany.

Funding Status

Funding is in place for this project

Project Description

We are seeking candidates for two fully funded PhD projects to develop pollen-based proxy reconstructions of relative changes in UV-B flux within the Holocene. Both projects will involve high resolution sampling of lake sediment records for pollen, followed by FT-IR analysis to determine abundance of UV-B absorbing compounds (UACs) in the extracted pollen samples. One project will focus on the record from a New Zealand site (Lake Ohau) and the other on the record from a site in Turkey (Nar Gölü).

The aim of both projects is to investigate nature and timing of variations in UACs in the context of changes in solar activity (e.g. grand maxima and minima) and other processes which may impact the levels of UV-B reaching the Earth’s surface. This research is part of a wider project entitled “Unlocking centuries’ worth of surface UV-B radiation hidden in pollen”, funded by the Royal Society of New Zealand Te Apārangi Marsden Fund.

Contact Name

Dr Kat Holt

Contact Email

Link to More Information

Closing Date

Friday, March 12, 2021

Expiry Date

Friday, March 12, 2021
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