Assessment of Indirect Radiative Effects of Aerosols Using Aircraft and Satellite Data Collected During the Indian Ocean Experiment (INDOEX)

使用印度洋实验 (INDOEX) 期间收集的飞机和卫星数据评估气溶胶的间接辐射效应

• 批准号: 0308340
• 负责人: Guosheng Liu
• 金额: $ 23.22万
• 依托单位: Florida State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-05-01 至 2007-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0308340&HistoricalAwards=false
• 关键词: Assessment; Indirect; Radiative; Effects; Aerosols

The focus of this project is the use of state-of-the-art techniques for retrieving cloud optical properties, utilizing both in-situ and satellite data from the Indian Ocean Experiment (INDOEX) to quantify the first and second indirect effects of aerosols on clouds, that is the effects on cloud albedo and on cloud lifetime. The principal research objectives are to: (a) retrieve and collocate liquid water path, effective radius, cloud number concentration, and cloud thickness data; (b) develop and validate a technique for drizzle/rain detection using the ratio of the liquid water path derived from microwave brightness temperatures to the liquid water path derived from solar reflectances; (c) estimate the interrelated terms that determine cloud particle size, and use them to assess aerosol indirect radiative effects, and (d) extend the methodology to satellite measurements to gain better temporal and spatial coverage.The modeling community will benefit from a better quantification of aerosol indirect effects. Further, the synergetic use of different airborne instruments is a necessary step before combining data from similar spaceborne instruments and developing cloud products. One post-doc and one graduate student will also receive scientific guidance and training during their contribution to this study. The project also promotes collaboration between Florida State University, the Georgia Institute of Technology, and the National Center for Atmospheric Research.

该项目的重点是使用最先进的技术来检索云的光学特性，利用印度洋实验的现场数据和卫星数据来量化气溶胶对云的第一和第二种间接影响，即对云寿命和云寿命的影响。主要研究目标是：（a）检索和配置液态水路径、有效半径、云数浓度和云厚度数据;（B）开发和验证一种利用微波亮度温度导出的液态水路径与太阳反射率导出的液态水路径之比探测毛毛雨/雨的技术;（c）估计确定云粒子大小的相互关联项，并利用这些项评估气溶胶的间接辐射效应，以及（d）将该方法扩展到卫星测量，以获得更好的时间和空间覆盖范围。气溶胶间接效应此外，协同使用不同的机载仪器是合并来自类似星载仪器的数据和开发云产品之前的一个必要步骤。一名博士后和一名研究生也将在参与本研究期间接受科学指导和培训。该项目还促进了佛罗里达州立大学、格鲁吉亚理工学院和国家大气研究中心之间的合作。