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Aircraft measurements of ice-nucleating particles and their importance for mixed-phase clouds

飞机对冰核颗粒的测量及其对混合相云的重要性

基本信息

批准号：
2743363
负责人：
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-2743363
关键词：
Aircraft measurements ice nucleating particles

项目摘要

This project aums to understand the sources and activity of particles which trigger ice formation in clouds. Ice formation in clouds is a major uncertainty in climate projections and short term weather forecasts, hence with major societal and commercial implications. The overarching objective is to improve the understanding of the sources, processing and activity of ice nucleating particles relevant for mixed-phase clouds. The scientific objectives will involve:1. Work with the Met Office to characterise and validate their new Ice Nucleus Counter (INC) against other INP devices, both in Leeds and at our partner's AIDA facility in Karlsruhe Institute of Technology. 2. Work in Leeds to develop the complementary filter based INP analysis and increase its sensitivity in order to quantify INP at temperatures relevant for the initiation of secondary ice production and distinguish between biological and mineral ice nucleating materials.3. Measure and characterise the occurrence of INP in the WesCon field campaign which has a focus on convective clouds in southern England. This will involve taking part in research flights on the FAAM BAe-146 aircraft in summer 2023.4. Measure and characterise INP relevant for cold-air outbreaks as part of our ongoing programme of research in this area. 5. Work with the modellers in WesCon to define primary ice production using the results from the campaign.

该项目旨在了解触发云中冰形成的粒子的来源和活动。云中结冰是气候预测和短期天气预报中的一个主要不确定性，因此具有重大的社会和商业影响。总体目标是增进对与混合相云有关的冰核粒子的来源、处理和活动的了解。科学目标将包括：1.与英国气象局合作，针对利兹和我们合作伙伴在卡尔斯鲁厄理工学院的AIDA设施中的其他INP设备，对他们的新冰核计数器(INC)进行表征和验证。2.在利兹开展工作，开发基于INP分析的互补过滤器，并提高其灵敏度，以便在与二次冰产生相关的温度下量化INP，并区分生物和矿物冰成核物质。在WesCon现场活动中测量和描述INP的发生情况，该活动的重点是英格兰南部的对流云。这将包括参加2023.4夏季FAAM BAE-146型飞机的研究飞行。作为我们在这一领域正在进行的研究计划的一部分，测量和描述与冷空气爆发相关的INP。5.与WesCon的建模人员合作，使用活动结果定义初级冰产量。