Model of Ecosystem Dynamics, nutrient Utilisation, Sequestration and Acidification

MEDUSA is a marine biogeochemistry model of the ocean's carbon and nutrient cycles. It has been developed across a series of UK National Capability programmes. MEDUSA is typically run in high-resolution configurations for forced-ocean hindcasts (observation-based recent past) and for future projections. It is the marine biogeochemistry component of the UK's Earth System Model, UKESM, and participated in CMIPs 6 7 (the latter ongoing).


PI: Andrew Yool, National Oceanography Centre

Email: axy at

Project Dates: 
January 2007 to March 2024

NERC – National Capability