People > Dr Vassilis Kitidis

Dr Vassilis Kitidis

Senior Scientist in Marine Biogeochemistry

Contact Details

+44 (0)1752 633100 (switchboard)


Dr Vasillis Kitidis graduated from Newcastle University (UK) with a PhD in aquatic photochemistry of dissolved organic matter. Subsequently, he worked on marine methane and nitrous oxide emissions from the ocean, including the Arctic.

In 2006, Vas joined PML to work on greenhouse gas cycling (CO2, CH4, N2O), carbonate chemistry, dissolved organic matter and nitrogen cycling from the ocean surface to the seabed. He draws on this diversity of work to identify synergies between research fields in the context of interactions between climate-change and the ocean.

Vas's research covers experimental and time-series studies on ocean acidification (OA) such as the first study to quantify the impact of OA on benthic nitrification and one of the first studies to quantify OA across the entire Atlantic Ocean. Recently, he has worked with colleagues across Europe to construct a data-driven budget of C-cycling on the NW European shelf and regularly contributes to the Global Carbon Budget.

At PML, Vas has established methodologies for quantifying benthic nitrogen cycling processes which are key to the recycling of nutrients in the ocean and thereby their future productivity. He has also developed simple numerical models of aquatic photochemistry and work closely with modellers on a variety of topics involving the cycling of greenhouse gases, carbon and nutrients.


Detection and Attribution of Regional greenhouse gas Emissions in the UK

Contact: Dr Yuri Artioli

DARE-UK is developing systems to estimate greenhouse gas emissions to improve the accuracy of the UK’s greenhouse gas emissions inventory...

Pathways and emissions of climate-relevant trace gases in a changing Arctic Ocean (PETRA)

Contact: Dr Andy Rees

The Arctic Ocean is a rapidly changing environment, with rising temperatures leading to an ongoing decline in sea ice and shifting conditions for...

|< <  1 2 3 ...  > >|

Other key projects

SOCAT: Surface Ocean CO2 Atlas

Selected key publications

Friedlingstein et al. (inc Kitidis), 2020, Global Carbon Budget 2020, Earth Syst. Sci. Data, 12, 3269–3340, doi:10.5194/essd-12-3269-2020

Kitidis et al., 2019. Winter weather controls net influx of atmospheric CO2 on the north-west European shelf. Scientific Reports 9, 20153. doi:s41598-019-56363-5

Kitidis et al., 2017. Surface ocean carbon dioxide during the Atlantic Meridional Transect (1995-2013); evidence of ocean acidification. Progress in Oceanography, doi:10.1016/j.pocean.2016.08.005

Kitidis et al., 2017. Seasonal benthic nitrogen cycling in a temperate shelf sea: the Celtic Sea. Biogeochemistry 135, 103-119. doi: 10.1007/s10533-017-0311-3

Kitidis et al., 2014. Oxygen Photolysis in the Mauritanian Upwelling: Implications for Net Community Production. Limnology and Oceanography. 59: 299-310. doi: 10.4319/lo.2014.59.2.0299

Kitidis et al., 2011. Impact of ocean acidification on benthic and water column ammonia oxidation. Geophysical Research Letters. 38: doi:10.1029/2011GL049095

Other activities

Management Board member (Land Ocean Carbon Transfer project)