Dr Monisha Natchiar Subbiah Renganathan (she/her)

Monisha Natchiar is a Postdoctoral Research Fellow and started working on the MACLOUD project with Prof. Jim Haywood from Oct 2025. In this project, she broadly aims to investigate the impact of aerosol perturbations / marine cloud brightening (MCB) on atmospheric dynamics, and determine optimal MCB deployment strategies.

Previously, she worked on the CIRCULATES - Circulation, Clouds and Climate Sensitivity project which was part of the UK-wide CloudSense programme that aimed to reduce the uncertainty in climate sensivity due to clouds. "How do clouds interact with the large-scale circulation of the atmosphere and how are these interactions modulated by the (sea) surface temperatures?" is one of the key questions of the CIRCULATES project. To this end, she investigated the interaction between the large-scale circulation, convection and clouds (including cloud microphysics) in the deep tropics using idealised global climate models. Idealised simulations using global climate models help to disentangle the processes influencing the deep tropical high clouds with climate change. She has also briefly worked on how boundary layer nucleation (via the Metzger scheme) partially offsets the UKESM1.0 model bias in cloud droplet number concentration in the marine boundary layer clouds in the Southern Ocean.