CAREER: Understanding the Global MLT Thermal Structure and Dynamics from Lidar and Satellite Observations and GCM Simulations

职业：通过激光雷达和卫星观测以及 GCM 模拟了解全球 MLT 热结构和动力学

• 批准号: 0645584
• 负责人: Xinzhao Chu
• 金额: $ 56.91万
• 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: 2007
• 资助国家: 美国
• 起止时间: 2007-04-15 至 2013-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0645584&HistoricalAwards=false
• 关键词: CAREER; Understanding; Global; MLT; Thermal

This is a CAREER award that will set a solid foundation for a young scientist in developing a successful academic career through creative and exciting research, education, and integrated activities. The focus of the work plan is to advance research and education in lidar remote sensing and the applications of global lidar data to middle and upper atmospheric science. The research represents the first time that worldwide lidar data will be combined to create a global picture of the thermal structure of the mesosphere and lower thermosphere (MLT) via the use of satellite data and computer simulations. These efforts will significantly advance our understanding of the global MLT thermal structure and will further our knowledge of middle atmosphere dynamics that govern these variations. This research will also test and improve sophisticated global circulation models through use of these observational data. Because this project will identify altitudes in the MLT region where the temperatures undergo minimum seasonal variations, it will be important for establishing a temperature baseline that can be used to monitor climate change. This project will significantly advance our knowledge of the least understood region of the atmosphere, which is the equatorial and transition region of the middle atmosphere. This project will also significantly increase the usage of the lidar data collected at Arecibo Observatory, a national facility for scientific research, and at other sites around the world. Through analyzing past and present data, the large data backlog will be reduced, and scientific results will be obtained to help guide future data collection and instrumentation upgrades. The study will act as a bridge to encourage collaborations between modelers and experimentalists to dramatically increase the use of lidar data in testing and improving GCM models. This project provides excellent opportunities to educate and train graduate and undergraduate students, and to advance the integration of atmospheric science with lidar engineering. Students will gain extensive knowledge and experience through classroom learning of lidar remote sensing and then applying them to active lidar research. This project will help the principal investigator to successfully develop her academic career. The activities align well with the PI's career goals of establishing a strong lidar and atmospheric research and education group at the University of Colorado, and developing a center of excellence for lidar technologies and applications for the middle and upper atmosphere community.

这是一个职业奖，将为年轻科学家通过创造性和令人兴奋的研究，教育和综合活动发展成功的学术生涯奠定坚实的基础。 该工作计划的重点是推进激光雷达遥感方面的研究和教育以及全球激光雷达数据在中高层大气科学中的应用。 该研究首次将全球激光雷达数据结合起来，通过使用卫星数据和计算机模拟来创建中间层和低热层（MLT）热结构的全球图像。 这些努力将大大推进我们对全球MLT热结构的理解，并将进一步加深我们对控制这些变化的中层大气动力学的了解。 这项研究还将通过使用这些观测数据来测试和改进复杂的全球环流模型。 由于该项目将确定MLT地区温度季节变化最小的海拔高度，因此建立可用于监测气候变化的温度基线非常重要。 这一项目将大大增进我们对大气层中最不了解的区域，即中层大气的赤道和过渡区域的了解。 该项目还将大大增加在阿雷西博天文台（一个国家科学研究机构）和世界各地其他地点收集的激光雷达数据的使用。 通过分析过去和现在的数据，将减少大量的数据积压，并获得科学的结果，以帮助指导未来的数据收集和仪器升级。 这项研究将作为一个桥梁，鼓励建模者和实验者之间的合作，以显着增加使用激光雷达数据在测试和改进GCM模型。 该项目提供了极好的机会，教育和培训研究生和本科生，并推进大气科学与激光雷达工程的整合。 学生将通过激光雷达遥感的课堂学习获得广泛的知识和经验，然后将其应用于主动激光雷达研究。 该项目将帮助首席研究员成功地发展她的学术生涯。 这些活动与PI在科罗拉多大学建立强大的激光雷达和大气研究和教育小组的职业目标保持一致，并为中层和高层大气社区开发激光雷达技术和应用的卓越中心。