Wave Glider Observations of Surface Fluxes and Mixed-layer Processes in the Southern Ocean

南极环极流（ACC）的表层和上层海洋过程在海洋热输送、海气通量（如pCO2）和海冰形成中起着重要作用。它们的网络反过来调节全球气候、海平面上升和全球环流。该项目继续进行地面自动驾驶车辆（https://www.liquid-robotics.com/wave-glider/overview/）的现场开发，以更好地测量和研究南大洋偏远地区的这些过程，否则很难获得连续的数据。移动自主水面车辆，由阳光和波浪作用驱动，为解决在遥远的南大洋获得无人看管的观测覆盖问题提供了一种非常经济有效的方式。该项目将支持pi正在进行的教育和推广工作，包括学校演讲、访问科学中心和编写教育材料。WaveGlider在恶劣的水域和海况中具有成功导航空间测量和定位时间序列测量的良好记录。该研究增加了一些新的测量功能，如（上层混合）层剖面CTD绞车、高频声学多普勒湍流系统和生物地球化学叶绿素荧光传感器。这一增强型仪器将用于南极夏季的一系列实验，观测南极半岛西部附近的大陆架交换以及锋面海气相互作用。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

Surface and upper-ocean processes in the Antarctic Circumpolar Current (ACC) play an important role in ocean heat transport, air-sea gas fluxes (such as pCO2) and in sea-ice formation. The net of these in turn modulate global climate, sea level rise and global circulation. This project continues the field development of a surface autonomous vehicle (https://www.liquid-robotics.com/wave-glider/overview/ ) to better measure and study these processes in the remote Southern Ocean, where continuous data is otherwise very difficult to obtain. Mobile autonomous surface vehicles, powered by sunlight and wave action provide a very cost effective manner of solving the problem of obtaining unattended observational coverage in the remote Southern Ocean. The project will support ongoing education and outreach efforts by the PIs including school presentations, visits to science centers and the development of educational materials.The WaveGlider has an established track record of navigating successful spatial surveys and positioned time series measurements in otherwise inhospitable waters and sea-states. The study includes the addition of some new measurement capabilities such as an (upper mixed) layer profiling CTD winch, a high frequency acoustic Doppler turbulence system, and a biogeochemical chlorophyll fluorescence sensor. This augmented instrumentation package will be used for a set of Austral summer season experiments observing ocean-shelf exchange along with frontal air-sea interactions in the vicinity of the West Antarctic Peninsula.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.