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Leanne K Armand

Marine and Coastal Phytoplankton Laboratory 
Dept of Biological Sciences and Climate Futures
Macquarie University
North Ryde, NSW, Australia
leanne.armand@mq.edu.au
Dr Leanne Armand is an expert in Southern Ocean diatom taxonomy (the identification of marine microscopic phytoplankton). She has a strong interest in the distribution of individual species related to the physical oceanic environment, and the subsequent preservation of this environmental relationship in the fossil record. She uses the records of fossil diatoms in deep sea cores between Australia and Antarctica to estimate past climatic conditions, such as sea ice extent and sea surface temperatures over the last glacial cycle (~240,000 yr). Dr Armand has recently focused on the living diatom community of the Southern Ocean near Heard and Kerguelen Islands where she has contributed knowledge to the understanding of diatom community responses and the export of their carbon to the seafloor as a result of their population explosion under the annual, naturally iron-stimulated, spring bloom. In 2007 Dr Armand was awarded the Australian Academy of Science's Dorothy Hill award for her excellence in palaeoceanographic research.
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