Collaborative Research: Deep Propagating Gravity Wave (DEEPWAVE)

深度传播重力波（DEEPWAVE）是一个跨学科的研究项目，研究重力波（GW）从对流层产生到中间层和低层热层（MLT）分解的传播和影响。该项目是由MLT和低层大气专家设计的。这些研究团体以前没有密切合作过，但是需要一种耦合的方法以全面和一致的方式处理这些动态。GWs强烈影响整个大气的动力和气候。DEEPWAVE将比以前更全面地了解GW的产生、传播、分解以及在大地形、气旋和强风切变存在下的能量和动量传输。该项目的核心是NSF湾流V （GV）研究飞机于2014年6月和7月在基督城进行为期6周的部署。GV飞行将在新西兰、塔斯马尼亚和南大洋岛屿的山波和下风位置以及作为附加强GW源的南极地急流上进行。最近的卫星遥感已将该地区确定为全球高空GWs的主要“热点”。利用GV原位仪器、落差探空仪和三种新型机载遥感仪器，可以观测到gw的几乎完整的垂直传播路径。GV将在9-13公里的高度飞行，现场仪器将观测GWs的结构和通量，最高可达18公里。在GV上，高功率瑞利和Na共振激光雷达以及先进的中间层温度成像仪（AMTM）将绘制出15至100公里的GW结构。这些最先进的测量将由地面气球和遥感仪器补充。这项为期4年的研究计划包括2014年的DEEPWAVE测量，以及此后广泛的分析工作和相关建模，以量化观察到的动态。所有DEEPWAVE数据将及时提供。除了该合作奖支持的研究人员外，NRL支持的参与者以及来自新西兰、澳大利亚、加拿大、德国和英国的国际合作者将密切参与DEEPWAVE项目。

DEEP propagating gravity WAVE (DEEPWAVE) is an interdisciplinary project addressing the propagation and effects of gravity waves (GW) extending from their generation in the troposphere to their breakdown in the mesosphere and lower thermosphere (MLT). The project is designed by experts on the MLT and the lower atmosphere. These research communities have not worked closely together before, but a coupled approach is required to address these dynamics in a comprehensive and consistent manner. GWs strongly influence the dynamics and climate throughout the atmosphere. DEEPWAVE will provide a more complete understanding of GW generation, propagation, breakdown, and energy and momentum transport in the presence of large topography, cyclones, and strong wind shears than has been possible previously. At the core of the project is a 6-week deployment of the NSF Gulfstream V (GV) research aircraft to Christchurch in June and July 2014. The GV flights will take place over mountain wave locations over and downwind of New Zealand, Tasmania, and islands in the Southern Ocean as well as the southern circumpolar jet that is an additional strong GW source. Recent satellite remote sensing has identified this region as a primary global "hotspot" of GWs reaching high altitudes. Using the GV in situ instruments, dropsondes, and three new airborne remote sensing instruments, nearly the full vertical propagation path of GWs can be observed. The GV will fly at altitudes from 9-13 km with in situ instruments observing the structure and fluxes of GWs up to ~18 km. On the GV, high-power Rayleigh and Na resonance lidars and an advanced mesospheric temperature mapper (AMTM) will map out GW structures from ~15 to 100 km. These state-of-the-art measurements will be supplemented by ground-based balloon and remote sensing instruments. This 4-year research program includes DEEPWAVE measurements in 2014, and extensive analysis efforts and associated modeling to quantify the observed dynamics thereafter. All DEEPWAVE data will be made available in a timely fashion. In addition to the investigators supported by this collaborative award, participants supported by NRL as well as international collaborators from New Zealand, Australia, Canada, Germany and the UK will be closely involved in the DEEPWAVE project.