Collaborative Research: Dynamics in the Mesosphere and Lower Thermosphere over the Andes Lidar Observatory

合作研究：安第斯山脉激光雷达天文台上空中间层和低层热层的动力学

• 批准号: 1110199
• 负责人: Alan Liu
• 金额: $ 19.99万
• 依托单位: Embry-Riddle Aeronautical University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-04-01 至 2018-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1110199&HistoricalAwards=false
• 关键词: Collaborative; Research; Dynamics; Mesosphere; Lower

This is a 5-year scientific collaboration to investigate the dynamics in the mesosphere and lower thermosphere (MLT) over the Andes Mountains in northern Chile. The objective is to characterize and understand wave phenomenology in the 80 to 100 km region, including background state interactions and effects. The investigation will be carried out at the newly established Andes Lidar Observatory (ALO) at Cerro Pachón (30.3°S, 70.7°W, 2530 m), Chile. This location is uniquely important for wave studies because it is a region of steep terrain and prolific wave generation that produces particularly pure examples of terrain generated waves due to the extreme dryness of the area and relative lack of convection, and it provides data for a region, the subtropical Southern Hemisphere, that currently is poorly characterized in terms of planetary waves, tides and gravity waves. The suite of instruments at ALO comprises a Na wind/temperature lidar, an all sky imager, a multichannel photometer, a mesospheric temperature mapper, an infrared camera, and a meteor radar, which will be used to observe waves and wave phenomena over a wide range of spatial and temporal scales. The project aims to provide the most detailed study to date from a Southern Hemisphere mountainous site of the characteristics and variability of instabilities, gravity waves, tides, planetary waves and mean winds and their interactions over a continuous 5-year period. Specific questions that will be addressed include: 1) What is the climatology of waves and wave related phenomenology over the Andes?2) What are the origins, lifecycle and morphology of instabilities at ALO?3) What atmospheric conditions lead to the formation of various wave phenomena?4) What are the characteristics of the interactions between tides, planetary waves and gravity waves and their effects on the MLT variability? The project will provide new education and training opportunities for students at all three universities involved. International collaborations with strong student involvement will also be pursued under this project with the Ciudad Universitaria, Argentina and the University of Adelaide, Australia. The unique dataset collected during this project will be made available to the scientific community and will support research on a wide range of scientific topics in both atmospheric science and astronomy.

这是一项为期5年的科学合作，旨在研究智利北部安第斯山脉山脉上的米层和下热层（MLT）的动力学。目的是表征和理解80至100 km区域的波浪现象学，包括背景状态相互作用和效果。这项投资将在智利的新成立的安第斯山脉雷达天文台（ALO）（30.3°S，70.7°W，2530 m）进行。对于波浪研究，该位置非常重要，因为它是钢质地形和多产的波浪产生的区域，由于该地区的极端干燥和相对缺乏构建，产生了特别纯粹的地形范围，并且为南半球亚热带提供数据，目前在行星，潮汐，潮汐，潮汐，潮汐，潮汐，潮汐和弓形浪潮方面都具有很差的特征。 ALO的仪器套件包括NA风/温度激光龙，全天空成像仪，多通道光度计，中层温度映射器，红外摄像头和流星雷达，可用于观察波浪和波浪现象在广泛的空间和临时尺度上。该项目旨在提供迄今为止最详细的研究，从南半球山区的特征和变异性，重力波，潮汐，行星波和平均风以及它们在连续的5年期间的相互作用的特征和可变性。将要解决的具体问题包括：1）在安第斯山脉上的波浪和波浪相关现象的气候是什么？2）ALO的不稳定性的起源，生命周期和形态是什么？3）3）大气条件会导致各种波浪现象的形成？4）4）耐用的浪潮和效果之间的相互作用是什么？该项目将为参与其中的所有三所大学的学生提供新的教育和培训机会。该项目还将在阿根廷，阿根廷和澳大利亚阿德莱德大学与强大的学生参与的国际合作进行。该项目期间收集的独特数据集将提供给科学界，并将支持大气科学和天文学中广泛科学主题的研究。