Polar Mesospheric Clouds and their Atmospheric Environment

极地中层云及其大气环境

• 批准号: 8918443
• 负责人: Gary Thomas
• 金额: $ 18.03万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-03-15 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8918443&HistoricalAwards=false
• 关键词: Polar; Mesospheric; Clouds; their; Atmospheric

In the polar regions there have been a number of satellite observations of dense collections of aerosol particles at altitudes around 85 km during the summer months. These phenomena have been named polar mesospheric clouds (PMC). This project is a continuation of research into the origin and nature of these clouds. Included in this project is a generalization of the one- dimensional, time-dependent cloud physics model to study the multi-dimensional aspects of the PMC structure. In particular, emphasis will be on the seasonal and latitudinal structure and the impact of horizontal winds. The climatology will be studied using the (1977-87) SBUV satellite data as well as from a new PMC data base. *** //

在极地地区，在夏季的几个月里，有许多卫星观测到在海拔约85公里处密集聚集的气溶胶颗粒。这些现象被称为极地中间层云（PMC）。这个项目是对这些云的起源和性质研究的延续。包括在这个项目是一个推广的一维，时间依赖的云物理模型，以研究PMC结构的多维方面。特别强调的是季节和纬度结构以及水平风的影响。气候学研究将使用（1977-87）SBUV卫星资料以及一个新的PMC数据库。*** //