Improved Understanding of Thermosphere-Mesosphere-Stratosphere-Troposphere Coupling Using Lidar Measurements

使用激光雷达测量提高对热层-中间层-平流层-对流层耦合的理解

• 批准号: 41677-2013
• 负责人: Sica, Robert
• 金额: $ 1.97万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633479
• 关键词: Improved; Understanding; Thermosphere; Mesosphere; Stratosphere; Improved; Understanding; Thermosphere; Mesosphere; Stratosphere

Solar-terrestrial relations is the study of how solar light and particle energy enters and is distributed through Earth's atmosphere-ionosphere-magnetosphere system. The ionosphere is the electrically charged region of the upper atmosphere (80 to 500 km above Earth's surface) while the magnetosphere is the extended region of space around Earth resulting from the Sun's magnetic field interacting with Earth's magnetic field. The atmospheric component traditionally emphasizes the interaction of solar energy with the lower atmosphere. Over the last 20 years it has been realized that the coupling of the lower atmosphere with the upper atmosphere and ionosphere is critical to understanding the system. Thus, simultaneous measurements over a wide range of heights are necessary to provide the inputs needed to understand processes which affect weather and climate, both near the surface and 100s of km above the surface.The proposed research program has several significant benefits for Canadians. A better understanding of coupling between the lower, middle and upper atmosphere is a key element to improving weather and climate models, as processes that occur in one region of the atmosphere can have a significant effect on other regions separated from the first by height, latitude, longitude and time. The proposed measurements will improve our understanding of the transport of pollutants in the atmosphere. It is now well established that pollution created in one region of the world can be lifted into the stratosphere, where it can both affect ozone and be transported great distances before being mixed back down to the surface. Knowledge gained from these studies will be used to address the quality of weather forecasts, health concerns due to air quality, declining levels of stratospheric ozone, GPS navigation in the North and predicting future climate change.

太阳与粒子能量如何进入并通过地球大气圈 - 磁层层系统进行分布的研究是对太阳能和粒子能量如何进入的研究。电离层是上层大气的电动区域（地面表面80至500 km），而磁层是由于太阳的磁场与地球磁场相互作用而导致的地球周围空间的扩展区域。传统上，大气成分强调了太阳能与较低大气的相互作用。在过去的20年中，人们已经意识到，下层大气与上层大气和电离层的耦合对于理解系统至关重要。因此，为了提供影响天气和气候的过程所需的投入，必须同时进行高度的高度测量，无论是在表面附近和100 km的表面上方。拟议的研究计划对加拿大人都有一些重要的好处。更好地理解下层，中层和上层大气之间的耦合是改善天气和气候模型的关键要素，因为在大气层一个区域中发生的过程可能会对其他第一个区域的其他区域产生重大影响，从而划分为第一个，高度，纬度，经度和时间。提出的测量将提高我们对污染物在大气中的运输的理解。现在已经很好地确定，在世界一个地区造成的污染可以提升到平流层中，在那里它可以影响臭氧和运输距离很大，然后再混合回表面。从这些研究中获得的知识将用于解决天气预报的质量，由于空气质量而引起的健康问题，平流层臭氧水平的下降，北部的GPS导航以及预测未来的气候变化。