Laboratory and Numerical Model Studies of Ice Formation in Clouds

云中冰形成的实验室和数值模型研究

• 批准号: 9103748
• 负责人: Lewis Grant
• 金额: $ 29.9万
• 依托单位: Colorado State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-02-01 至 1994-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9103748&HistoricalAwards=false
• 关键词: Laboratory; Numerical; Model; Studies; Ice

The basic goal of this research is ice formation in the atmosphere. The basic approach includes experiments performed with an instrumented cloud chamber and simulations using a numerical model. Experiments will focus on ice initiation by natural aerosols from -5 to -40 degrees C, and for a range of humidity conditions, both subsaturated and supersaturated with respect to water. Results from these and previous studies of artificial ice nuclei will be incorporated into numerical simulations of natural and seeded clouds, for comparison to atmospheric observations.

这项研究的基本目标是在大气中形成冰。基本方法包括使用仪表式云室进行的实验和使用数值模式进行的模拟。实验将集中在从-5到-40摄氏度的自然气溶胶引发的冰，以及在一系列湿度条件下，对于水来说，包括过饱和和过饱和。这些和之前对人造冰核的研究结果将被纳入对天然云和播种云的数值模拟中，以便与大气观测进行比较。