Assessment of aerosol-cloud-precipitation interactions using polarimetric radar observations and comprehensive cloud-resolving models

使用极化雷达观测和综合云解析模型评估气溶胶-云-降水相互作用

• 批准号: 347489949
• 负责人: Professor Dr. Johannes Quaas
• 金额: --
• 依托单位: Institut für Meteorologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2017
• 资助国家: 德国
• 起止时间: 2016-12-31 至 无数据
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/347489949?language=en
• 关键词: Assessment; aerosol; cloud; precipitation; interactions

Aerosol-cloud-precipitation interactions are fundamental processes in the climate system which are perturbed by anthropogenic emissions and thus exert a climate forcing. The large uncertainties with respect to this forcing are a main reason why no better projectsion of future climate change even for given emission scenarios are possible. New data both for observations- and modelling may now enable a better process understanding. In the planned project collaboration we will in particular exploit new networks of polarimetric radar in Germany (operated by the German Weather Service) and in the USA in terms of observations, and a data set of simulations with a large-eddy model with detailed cloud- and precipitation microphysics and aerosol-cloud interactions for a broad range of cloud regimes in terms of modelling. The partner institute NASA-Goddard Institute for Space Studies is in an internationally leading position with respect to both fields. This expertise that examines the process level is complemented by the expertise at Universität Leipzig in terms of the analysis of global data (satellite data) and modelling (climate modelling).

气溶胶-云-降水相互作用是气候系统中的基本过程，它受到人为排放的扰动，从而产生气候强迫。与这种强迫有关的巨大不确定性是即使在给定的排放情景下也不可能更好地预测未来气候变化的主要原因。用于观测和建模的新数据现在可能有助于更好地理解过程。在计划中的项目合作中，我们将特别利用德国(由德国气象局运营)和美国在观测方面的新的极化雷达网络，以及在建模方面利用大涡模式的一组模拟数据，该大涡模式具有详细的云-降水微物理和气溶胶-云相互作用。伙伴机构美国航天局-戈达德空间研究所在这两个领域都处于国际领先地位。莱比锡大学在分析全球数据(卫星数据)和建模(气候建模)方面的专门知识补充了这一审查进程水平的专门知识。