Atmospheric impacts from the water-rich Hunga-Tonga large-magnitude eruption

富含水的洪加-汤加大规模喷发对大气的影响

• 批准号: 2889599
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2889599
• 关键词: Atmospheric; impacts; water; rich; Hunga

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.

该博士学位项目将涉及与英国的互动火山气溶胶组成气候模型UM-UKCA进行模型实验（Dhomse等，2020； Marshall等，2019； Dhomse等，2014）。模型实验重新分析了Hunga-Tonga云的进展，并与富含Ash的硫磺为主的病例（例如2014年的Kelud爆发或1883年的Krakatau喷发）形成鲜明对比。观察Hunga-Tonga气溶胶和水上层的分离的CALIOP和MLS和UM-UKCA分离了辐射，微物理和动态过程，这些过程决定了其影响的幅度和寿命。该博士学位项目着重于预测英国地球系统模型（UKESM）内未来克拉卡陶（Krakatau）富含硫磺的大型爆炸性爆炸性爆炸性。该项目使用的UM-UKCA模型具有世界领先的能力，可以代表气候良好的平面循环和动力学，并具有良好的平流层循环 - 散热性 - 散热性 - 散热性 - 散热性，散布于散热层，散布着散热性，散布着散热性，散布着散热性的，气溶胶微物理学和旨在解决水蒸气影响的化学方案。因此，这些学生有可能出现高影响力的论文，从而呈现匈牙利的影响对平流层，气候和南极臭氧洞的影响。