Links between the marine cycles of nitrogen and iodine
Recent research has established that the reaction of iodide with ozone at the sea surface plays an important role in controlling atmospheric chemistry and composition. The loss of tropospheric ozone resulting from this process has major impacts on climate and air quality. The marine distribution of iodide controls ozone deposition to the sea surface and sea-air iodine emissions, but the processes controlling iodine speciation in seawater remain poorly understood. It has been suggested that there are links between nitrogen and iodine cycling in seawater but this is yet to be fully investigated. More so, the oceanic nitrogen cycle in undergoing change in response to stratification, ocean acidification and changes in atmospheric deposition. If changes in iodine speciation are linked to key processes in the marine nitrogen cycle (e.g. nitrification, assimilation) there may be significant alterations to the ocean distribution of iodide in the future with implications for tropospheric ozone.
This studentship will establish if key processes in the marine nitrogen cycle drive changes in iodine speciation, and determine how future alterations to the marine nitrogen cycle under global change will impact iodine cycling. This will be a predominantly laboratory-based study but there may also be opportunities for UK or overseas fieldwork. Highly motivated candidates with a background in marine science, oceanography or environmental science (or related disciplines) are encouraged to apply.
This is a 3.5 year fully-funded studentship part of the NERC Doctoral Training Partnership in Adapting to the Challenges of a Changing Environment (ACCE). The studentship covers: (i) a tax-free stipend at the standard Research Council rate (around £15,000 per year), (ii) tuition fees at UK/EU rate, (iii) research consumables and training necessary for the project.
Entry requirements: At least an upper second class honours degree, or equivalent in any relevant subject that provides the necessary skills, knowledge and experience for the DTP, including environmental, biological, chemical, mathematical, physical and social sciences.
Shortlisting: Applicants will be notified if they have been selected for interview in the week commencing on Monday 28 January 2019.
Interviews: Shortlisted applicants will be invited for an interview to take place in the Department of Biology at the University of York in the week beginning 11 February 2019 (or the following week). As part of the interview process candidates will be asked to give a 5 minute presentation on a research project carried out by them.