学校：曼彻斯特大学 The University of Manchester
院系：Department of Earth and Environmental Sciences
教授： Prof Ann Webb , Dr P Connolly , Dr Andrew Smedley
截止日期：Applications accepted all year round
职位介绍
冰云可随时覆盖地球表面的20-35％，这对捕获大气（辐射）和反射太阳辐射的大气中的辐射强迫起了主要作用。这些过程之间的平衡决定了云是否具有净增温或降温效果。卷云的净辐射作用的这种可能性范围是在不同气候模型中报告的气候敏感性范围（即，对CO2倍增的平均平衡表面温度响应）范围变化的原因之一。卷云必须在气候模型中以简化形式表示，但是这些参数化的困难之一是缺乏对卷云的微物理特性（冰粒的大小，形状，粗糙度）与辐射的相互作用的了解。
学生有机会与由NERC资助的研究人员一起研究来自代表曼彻斯特冰云室内真实卷云的冰粒的反向散射，以改进和验证这种反向散射的建模。结果将输入到开发和测试用于表示卷云的新方案中，该方案将在Met Office UKV预测模型和Met Office Earth System模型中使用。
About the Project
Ice clouds, which can cover 20-35% of the Earth’s surface at any time, make a major contribution to radiative forcing in the atmosphere, both trapping IR (terrestrial) radiation and reflecting solar radiation. The balance between these processes determines whether the cloud has a net warming or cooling effect. This range of possibilities in the net radiative effect of cirrus is one of the causes of the range in climate sensitivity (i.e., the mean equilibrium surface temperature response to a doubling of CO2) reported across differing climate models. Cirrus must be represented in a simplified form in climate models, but one of the difficulties with these parameterisations is lack of understanding of how the cirrus microphysical properties (size, shape, roughness of the ice particles) interact with radiation.
There is an opportunity for a student to work alongside NERC-funded researchers exploring the backscatter from ice particles representative of real cirrus in the Manchester Ice Cloud Chamber, to enable improved and verified modelling of such backscatter. The results will input to development and testing of a new scheme for representing cirrus that will be used in the Met Office UKV forecast model and in the Met Office Earth System Model.
如有招聘信息发布(博士/博后/访学)可联系
邮箱：525022545@qq.com
微信：18876402770
院系：Department of Earth and Environmental Sciences
教授： Prof Ann Webb , Dr P Connolly , Dr Andrew Smedley
截止日期：Applications accepted all year round
职位介绍
冰云可随时覆盖地球表面的20-35％，这对捕获大气（辐射）和反射太阳辐射的大气中的辐射强迫起了主要作用。这些过程之间的平衡决定了云是否具有净增温或降温效果。卷云的净辐射作用的这种可能性范围是在不同气候模型中报告的气候敏感性范围（即，对CO2倍增的平均平衡表面温度响应）范围变化的原因之一。卷云必须在气候模型中以简化形式表示，但是这些参数化的困难之一是缺乏对卷云的微物理特性（冰粒的大小，形状，粗糙度）与辐射的相互作用的了解。
学生有机会与由NERC资助的研究人员一起研究来自代表曼彻斯特冰云室内真实卷云的冰粒的反向散射，以改进和验证这种反向散射的建模。结果将输入到开发和测试用于表示卷云的新方案中，该方案将在Met Office UKV预测模型和Met Office Earth System模型中使用。
About the Project
Ice clouds, which can cover 20-35% of the Earth’s surface at any time, make a major contribution to radiative forcing in the atmosphere, both trapping IR (terrestrial) radiation and reflecting solar radiation. The balance between these processes determines whether the cloud has a net warming or cooling effect. This range of possibilities in the net radiative effect of cirrus is one of the causes of the range in climate sensitivity (i.e., the mean equilibrium surface temperature response to a doubling of CO2) reported across differing climate models. Cirrus must be represented in a simplified form in climate models, but one of the difficulties with these parameterisations is lack of understanding of how the cirrus microphysical properties (size, shape, roughness of the ice particles) interact with radiation.
There is an opportunity for a student to work alongside NERC-funded researchers exploring the backscatter from ice particles representative of real cirrus in the Manchester Ice Cloud Chamber, to enable improved and verified modelling of such backscatter. The results will input to development and testing of a new scheme for representing cirrus that will be used in the Met Office UKV forecast model and in the Met Office Earth System Model.
如有招聘信息发布(博士/博后/访学)可联系
邮箱：525022545@qq.com
微信：18876402770
