Kate Hendry (Principal Investigator) is a biogeochemist and palaeoceanographer at the University of Bristol, interested in understanding nutrient cycling in the modern ocean, and the link between past climatic change, ocean circulation, nutrient supply and biological productivity. She did her PhD at Oxford University, working on trace metal cycling in coastal Antarctic waters. For example, she studied the cycling of cadmium, a biologically important element – although in high levels it can be toxic, cadmium is needed by algae for healthy growth. She then went on as a post doctoral research assistant, and then won a Doherty Scholarship to work at Woods Hole Oceanographic Institution, USA. Here, she worked on the stable isotopes of silicon in biogenic opal, a substance produced by some kinds of algae (diatoms), some protists (radiolarians, for example) and deep-sea sponges. After returning to the UK, she worked at Cardiff University for 18 months, before moving to Bristol as a Royal Society Research Fellow. She has also been funded to carry on her research into silicon isotopes. Kate has been on many field expeditions, including two US-funded research trips to the Southern Ocean on the R/V Nathaniel B Palmer, and – most recently – a trip across the Equatorial Atlantic on the TROPICS cruise.
Mike Meredith is Deputy Director of Science at British Antarctic Survey, and holds an Honorary Chair at the Scottish Association for Marine Science (SAMS). He leads the Polar Oceans research program at BAS, with overall responsibility for its design, funding and implementation. He is a member of the POGO (Partnership for Observations of the Global Ocean) organization, a Co-Investigator on the Palmer LTER programme, a member of the AWI International Advisory Board, and has served as Chair for the Southern Ocean Observing System. Mike has worked extensively in both polar regions, with a particular focus on understanding the role of the ocean in climate change and variability. He has made notable contributions concerning the dynamics of the Antarctic Circumpolar Current (ACC), including assessments of how sensitive is its flow to climatic changes in forcing, and the implications of overturning circulation in the ACC for global climate. His work demonstrated the role of mesoscale eddies in modulating changes in the mean ACC flow, and progressed research concerning their impact on Southern Ocean warming and carbon uptake. He has also made extensive contributions to the study of global abyssal warming and its causes via changes in the formation and export of Antarctic Bottom Water (AABW). In the Arctic, Mike’s interests focus on understanding the time-varying freshwater budget, using oxygen isotopes and barium tracers. Mike has strong interests in the use of emerging technology as part of ocean observing systems. He has conducted numerous field campaigns in the polar regions from both UK and international research vessels, including serving as Chief Scientist on 5 major cruises. He has authored more than 100 peer-reviewed journal papers on the physical and interdisciplinary science of the polar seas, and manages a program with a total annual budget in excess of £1M (GBP).
Carrie Lear is reader of palaeoceanography at Cardiff University and is the co-Theme Leader for the Biogeochemical Cycles Research Theme in the GW4+ DTP. She has a degree in Earth Sciences (Oxford) and a PhD in palaeoceanography (Cambridge), which pioneered the use of Mg/Ca palaeothermometry in Cenozoic aged samples. Carrie has participated in six research expeditions at sea, collecting both core-top and down-core sediment samples. Current projects include: Evaluating modelled ice sheet hysteresis; A North Atlantic perspective on Earth’s Greenhouse-Icehouse Transition; Reconstructing Neogene ice volume and carbon dioxide variations; Carbon cycling across the Mid-Pleistocene Transition; Arctic water column structure through the Pleistocene.
Stephanie Bates is a PhD student working on barium-calcium ratios (‘Ba/Ca’) in calcitic foraminifera. These ocean-dwelling microorganisms make their shells out of calcium carbonate, capturing information about the seawater around them. The Ba/Ca of their shells can be used to estimate the alkalinity of seawater through the past, providing information about oceanic uptake and release of atmospheric CO2. Stephanie began her PhD studentship at Cardiff University in January 2013 and transferred to the University of Bristol in July 2014. Her supervisors are Dr Kate Hendry and Dr Carrie Lear. Her work involves ‘picking’ foraminifera under the microscope using a very fine paintbrush, cleaning them in the laboratory using a series of chemicals, and then measuring their composition by mass spectrometry. Stephanie gained a degree in Environmental Geoscience from the University of Bristol, and participated in the TROPICS cruise across the equatorial Atlantic. Her route to palaeoceanography began with school geography lessons and work experience at the National Oceanography Centre. Her studies are fuelled by a love for the natural environment and a curiosity about how Earth’s climate system works.
Rob Sherrell (Senior scientist, Rutgers)
Kim Pyle (PhD student)