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Ocean and Earth Science, National Oceanography Centre Southampton
(023) 8059 6041

Dr Amber Annett BSc, MRes, PhD

NERC Independent Research Fellow

Dr Amber Annett's photo

Dr Amber Annett is NERC Independent Research Fellow within Ocean and Earth Science, National Oceanography Centre Southampton at the University of Southampton.

My research uses naturally-occurring radioisotopes to better constrain biogeochemical cycles of trace metals in our changing oceans

2017-present: NERC Independent Research Fellow at the University of Southampton, PI of Radium in Changing Environments: A Novel Tracer of Marine Fluxes at Ocean Margins (RaCE:TraX)

2015-2017: Postdoctoral Research Associate, Rutgers University (USA), Trace metal cycling along the Western Antarctic Peninsula

2014-2015: Postdoctoral Research Associate, University of Edinburgh, UK Shelf Seas Biogeochemistry

2013-2014: Marine Research Assistant at Rothera Research Station, British Antarctic Survey

PhD in Ocean Global Change, University of Edinburgh (2013) Phytoplankton ecology and biogeochemistry of the warming Antarctic sea-ice zone

MRes in Ocean Global Change, University of Edinburgh (2008) Seasonal and interannual variations in phytoplankton assemblages in a near-shore Antarctic sea-ice environment

BSc (Hons) in Biology and Oceanography, University of British Columbia, Canada (2006) Copper requirements of coastal and oceanic diatoms

Research interests

Ocean margin sources such as continental run-off, sediments and hydrothermal vents are key sources of iron and other essential nutrients. Currently, climate change is impacting many of the margin processes that determine nutrient fluxes to the oceans, such as accelerating glacial melt and changing circulation patterns. These effects have the potential to limit or enhance marine productivity, with consequences for higher trophic levels, carbon drawdown and sequestration. 

At many ocean margins, fluxes of trace metals are poorly constrained, owing to a lack of information with which to accurately assess supply rates. My research uses radium isotopes, a powerful approach for constraining input and removal of iron at different margin sources. Radium decays over time after release from sediment, making it an ideal chronometric tracer of ocean margin processes.

My research interests include:

- Radium isotopes as tracers of nutrient fluxes at ocean margins

- Trace metal biogeochemistry

- Radioisotope tracers of sedimentary iron supply

- Glacial delivery of micro- and macro-nutrients to the ocean

- Radioisotope tracers of carbon cycle processes

Research group

Marine Biogeochemistry

Research project(s)

Radium in Changing Environments: A Novel Tracer of Iron Fluxes at Ocean Margins (RaCE:TraX)

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Dr Amber Annett
Ocean and Earth Science
National Oceanography Centre Southampton
University of Southampton Waterfront Campus
European Way
Southampton SO14 3ZH

Room Number : NOCS/344/26/N1

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