Atmospheric impacts from the water-rich Hunga-Tonga large-magnitude eruption
Lead Research Organisation:
University of Leeds
Department Name: School of Earth and Environment
Abstract
This PhD project will involve model experiments with the UK' s interactive volcanic aerosol composition-climate model UM-UKCA (Dhomse et al., 2020; Marshall et al., 2019; Dhomse et al., 2014). Model experiments to re-analyse the progression of the Hunga-Tonga cloud, and contrast with ash-rich sulphur-dominated case such as the 2014 Kelud eruption or the 1883 Krakatau eruption.
The CALIOP and MLS observing the separation of the Hunga-Tonga aerosol and water-rich layers, and UM-UKCA resolves the radiative, microphysical and dynamical processes that have determined the magnitude and longevity of its effects. The PhD project focuses on predicting the effects from future Krakatau-like sulphur-rich large-magnitude explosive phreatomagmatic eruption within the UK's Earth System Model (UKESM).
The UM-UKCA model used for this project has world-leading capability to represent volcanic impacts on climate, with well-resolved stratospheric circulation and dynamics, with the radiative-transfer module, interactive PSCs, aerosol microphysics, and chemistry schemes designed to resolve the water vapour influences. The studentship therefore has the potential for high-impact papers presenting Hunga-Tonga impacts on the stratosphere, climate and the Antarctic ozone hole.
The CALIOP and MLS observing the separation of the Hunga-Tonga aerosol and water-rich layers, and UM-UKCA resolves the radiative, microphysical and dynamical processes that have determined the magnitude and longevity of its effects. The PhD project focuses on predicting the effects from future Krakatau-like sulphur-rich large-magnitude explosive phreatomagmatic eruption within the UK's Earth System Model (UKESM).
The UM-UKCA model used for this project has world-leading capability to represent volcanic impacts on climate, with well-resolved stratospheric circulation and dynamics, with the radiative-transfer module, interactive PSCs, aerosol microphysics, and chemistry schemes designed to resolve the water vapour influences. The studentship therefore has the potential for high-impact papers presenting Hunga-Tonga impacts on the stratosphere, climate and the Antarctic ozone hole.
Studentship Projects
Project Reference | Relationship | Related To | Start | End | Student Name |
---|---|---|---|---|---|
NE/S007458/1 | 01/09/2019 | 30/09/2027 | |||
2889599 | Studentship | NE/S007458/1 | 01/10/2023 | 31/03/2027 | Saffron Heddell |