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Details of Award

NERC Reference : NE/R007586/1

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OMG The Southern Ocean Bias: Observing and Modelling trace Gases to explore the Southern Ocean temperature Bias

Training Grant Award

Lead Supervisor:
Dr P Halloran, University of Exeter, Geography
Grant held at:
University of Exeter, Geography
Science Area:
Atmospheric
Marine
Overall Classification:
Marine
Science Classification details
ENRIs:
Biodiversity
Environmental Risks and Hazards
Global Change
Science Topics:
Ecosystem Scale Processes
Ocean Circulation
Climate & Climate Change
Palaeoenvironments
Biogeochemical Cycles
Abstract:
The Met Office and NERC are jointly developing the UK's next generation Earth System Model. This model has a large Southern Ocean temperature bias arising in part from clouds allowing too much sunlight to reach the ocean's surface. This temperature bias compromises the reliability of future climate projections. Cloud droplets form on particles in the atmosphere. These particles come from a mixture of natural and human sources. More cloud droplets mean brighter (more reflective) clouds, and less sunlight passing through those clouds. Present-day cloud brightness reflects the natural 'background' particle production, and the number of human-produced (anthropogenic) particles that are transported over the Southern Ocean. This natural/anthropogenic particle ratio is critical to understand how the system will respond to increases/decreases in anthropogenic particle emissions, because changes on top of a 'clean' atmosphere have a much bigger impact than changes in an already 'dirty' atmosphere. This project aims to (1) determine the level and range of possible background emissions of the primary biological particle source in the region, dimethylsulphide, (2) implement changes to these emissions in the Met Office model, and (3) explore the implications of this for the model's Southern Ocean, and climate change.
Period of Award:
1 Oct 2018 - 31 Mar 2023
Value:
£89,485
(FY details)
Authorised funds only
NERC Reference:
NE/R007586/1
Grant Stage:
Completed
Scheme:
DTG - directed
Grant Status:
Closed
Programme:
Industrial CASE

This training grant award has a total value of £89,485  

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FDAB - Financial Details (Award breakdown by headings)

Total - FeesTotal - Student StipendTotal - RTSG
£17,480£61,007£11,000

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