Arctic climate change: the vital role of pollution and climate feedbacks

北极气候变化：污染和气候反馈的重要作用

• 批准号: 2743372
• 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: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2743372
• 关键词: Arctic; climate; change; vital; role

The climate of the Arctic is changing faster than any other region of the planet. Although greenhouse gases are the main driver of global warming, the particularly rapid rise in temperature and seasonal loss of sea ice in the Arctic have a more complex explanation. Changes in air pollution (aerosols) and local feedbacks involving aerosols, clouds and sea ice are important processes, but their effects are very poorly represented in climate models. This project aims to improve our understanding of how aerosol and cloud processes influence climate change in the Arctic. The research will involve running advanced, high-resolution aerosol and cloud models from the scale of a few metres up to the global scale. Model simulations combined with extensive recent observations will be used to understand how the climatic effects of clouds are altered by aerosols from air pollution as well as changes in aerosol from natural sources as sea ice retreats. Improvement in our understanding will then feed through to improvements in the UK climate model, providing the opportunity for the student to contribute to improved Arctic climate projections. The PhD provides a great opportunity to become involved in Arctic research at a time when several international initiatives and major projects are coordinating programmes of Arctic research and making extensive measurements that can be used to test climate models.

北极的气候变化比地球上任何其他地区都要快。尽管温室气体是全球变暖的主要驱动力，但北极气温特别迅速的上升和海冰的季节性损失有一个更复杂的解释。空气污染（气溶胶）的变化和涉及气溶胶、云和海冰的当地反馈是重要的过程，但它们的影响在气候模式中表现得很差。该项目旨在提高我们对气溶胶和云过程如何影响北极气候变化的理解。这项研究将涉及运行先进的、高分辨率的气溶胶和云模型，从几米的尺度到全球尺度。模型模拟与最近的广泛观测相结合，将用于了解云的气候效应如何被空气污染的气溶胶以及海冰退缩时自然来源的气溶胶变化所改变。我们理解的提高将促进英国气候模型的改进，为学生提供为改进北极气候预测做出贡献的机会。博士提供了一个很好的机会，成为参与北极研究的时候，几个国际倡议和重大项目正在协调北极研究的方案，并作出广泛的测量，可用于测试气候模型。