I am a Reader in Marine Science with strong research interests in polar ocean biogeochemistry and marine ecosystem change in both the Arctic and Southern Oceans. I am also working on projects around global ocean change and the impacts of climate change on the world's people, with a specific focus on children.

I am an investigator on two projects as part of the UK NERC Changing Arctic Ocean program, which aims to characterise and quantify the changes in marine biological productivity and biogeochemical cycling occurring in response to rapid warming and sea ice losses in the Arctic region.

• Arctic PRIZE (PRoductivity in the seasonal Ice ZonE) is a multidisciplinary international project examining the effect of sea ice changes in the Arctic Ocean on ocean physics and nutrient dynamics and consequently on biological productivity and ecosystem functioning.
  
  
• The Changing Arctic Ocean Seafloor (ChAOS) is a multidisciplinary project to elucidate the impacts of declining sea ice cover in the Arctic Ocean on the biological communities and nutrient cycling in seafloor ecosystems, and the implications for carbon sequestration and burial.

I also have research projects underway at the west Antarctic Peninsula and at the whole Southern Ocean scale examining carbon and nutrient dynamics and ecosystem change in response to large variability and change in sea ice cover and physical ocean processes. My NERC Independent Research Fellowship examined the marine nitrogen cycle along the west Antarctic Peninsula, its coupling with the biogeochemical cycles of carbon and other nutrients, and the interactions between ocean biogeochemistry, ecosystem functioning and climate change.

Beyond my core research, I am also active in science-policy interactions and public engagement around climate and ocean change in the polar regions and worldwide.

Follow me on twitter! @drsianhenley

Google scholar: https://scholar.google.co.uk/citations?user=osGVUkoAAAAJ&hl=en

ResearchGate: https://www.researchgate.net/profile/Sian-Henley

• Marine biogeochemistry, with a particular emphasis on nitrogen and carbon dynamics, stable and radiocarbon isotope geochemistry
• Polar oceanography, ecosystem change and climate-ice-ocean-ecosystem interactions
• Marine policy and environmental protection
• Climate change impacts, mitigation and adaptation

Global Change Research Institute

Oceans and Climate Research Group