Dr Jenny Pike
Deputy Head of School and Reader
- Marine diatoms
- ice-ocean interactions
- Antarctic palaeoclimate
- isotopes from biogenic silica
- sub-annual to millennial-scale palaeoceanography
- Reader in Earth and Ocean Sciences – School of Earth and Ocean Sciences, Cardiff University (2013-present)
- Lecturer/Senior Lecturer in Earth and Ocean Sciences – School of Earth and Ocean Sciences, Cardiff University (1997-2013)
- UK Ocean Drilling Program Postdoctoral Fellow – University of Southampton, UK (1996-1997)
- PhD – Department of Oceanography, University of Southampton (1996)
- BSc Geology – University of Birmingham (1991)
I use marine diatoms to investigate ocean history on seasonal to millennial timescales. In the high latitudes, ocean surface diatom assemblages are sensitive to changes in their environment and I exploit this sensitivity to reconstruct past changes in, for example, the concentration or duration of sea ice.
I use the oxygen isotopes preserved in the biogenic silica cell wall of the marine diatoms as a proxy for glacial discharge (volume of meltwater and glacial ice entering the coastal ocean form the land). I am also interested in the variations in diatom species morphology in response to environmental change.