Collaborative Research: Deep Propagating Gravity Wave (DEEPWAVE)

深传播重力波(DEEPWAVE)是一个研究重力波(GW)从对流层产生到在中间层和低热层破裂(MLT)的传播和影响的跨学科项目。该项目由MLT和低层大气方面的专家设计。这些研究界以前没有密切合作过，但需要一种结合的方法，以全面和一致的方式处理这些动态。全球变暖强烈地影响着整个大气的动态和气候。DEEPWAVE将比以前更全面地了解在大地形、气旋和强风切变存在的情况下GW的产生、传播、击穿以及能量和动量传输。该项目的核心是在2014年6月和7月将NSF湾流V(GV)研究飞机部署到克赖斯特彻奇，为期6周。GV飞行将在新西兰、塔斯马尼亚和南大洋岛屿的山波位置和顺风方向上进行，以及作为额外的强大GW来源的南绕极急流。最近的卫星遥感已将该地区确定为全球高海拔地区的主要全球“热点”。利用GV原位仪器、落差探测仪和三种新的机载遥感仪器，几乎可以观测到GWS的全部垂直传播路径。GV将在9-13公里的高度飞行，并使用现场仪器观测长达18公里的GWS的结构和通量。在GV上，高功率瑞利和纳共振激光雷达和先进的中层温度测图仪(AMTM)将绘制出约15到100公里的GW结构图。这些最先进的测量将得到地面气球和遥感仪器的补充。这项为期4年的研究计划包括2014年的DEEPWAVE测量，以及此后为量化观察到的动态而进行的广泛分析工作和相关建模。所有DEEPWAVE数据将及时提供。除了这一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.