Dr Dorothee Bakker (University of East Anglia, School of Environmental Sciences) – Contact me
Thomas Bell, Plymouth Marine Laboratory
Robert Hall, School of Environmental Sciences, University of East Anglia
Sea ice provides an important, but poorly quantified, mechanism for transfer of carbon from the upper ocean to the deep ocean, the sea ice carbon pump. Brine drainage from sea ice formed in Antarctic coastal polynyas furthermore contributes to the creation of Antarctic Bottom Water (AABW), in which dense water carries dissolved carbon to depth. While the ocean takes up a quarter of carbon dioxide (CO2) emissions from human activity, paradoxically newly formed AABW contains little ‘anthropogenic’ carbon, probably because persistent sea ice cover hampers surface ocean CO2 uptake.
1) Quantify the effects of sea ice formation and melt on ocean carbon
2) Determine dissolved carbon uptake by AABW
3) Gain a circumpolar perspective on how sea ice impacts the carbon cycle
The multidisciplinary, multiplatform PICCOLO (Processes Influencing Carbon Cycling: Observations of the Lower limb of the Antarctic Overturning, https://roses.ac.uk/piccolo/) cruise will provide you with a unique field opportunity in an Antarctic coastal polynya. You will use PICCOLO’s measurements of direct CO2 air-sea fluxes and carbonate chemistry for quantification of the effects of sea ice formation and melt on ocean carbon. Then, you will combine these measurements with water mass analysis and determine carbon uptake by AABW. Finally, you will use SOCAT, GLODAP, biogeochemical Argo floats, including SOCCOM, and satellite products to gain a circumpolar perspective on how sea ice impacts ocean carbon uptake, transport and storage.
- Participate in the PICCOLO research cruise, subject to sea survival training, BASMU medical and COVID vaccinations;
- Gain expertise in carbonate chemistry measurements;
- Develop skills in sensor calibration, data analysis and programming (Python or Matlab);
- Work with shipboard, glider, float and satellite datasets;
- Join the dynamic, multi-institution PICCOLO science team;
- Attend PICCOLO workshops;
- Present research at an international scientific conference and in peer-reviewed publications;
While determining the role of sea ice in the carbon cycle.
We seek an enthusiastic, pro-active team player with strong scientific interests, self-motivation and numerical skills. You will have a degree in physics, chemistry, natural sciences, mathematics, computing, environmental sciences, or similar numerical subject.