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

南大洋表面通量和混合层过程的波浪滑翔机观测

• 批准号: 1853291
• 负责人: James Girton
• 金额: $ 82.65万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-07-01 至 2024-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1853291&HistoricalAwards=false
• 关键词: Wave; Glider; Observations; Surface; Fluxes

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.

南极绕极流（ACC）中的表层和上层海洋过程在海洋热输送、海气通量（如pCO 2）和海冰形成中起着重要作用。这些网络反过来又调节全球气候、海平面上升和全球环流。 该项目继续进行地面自主车辆的实地开发（https：www.liquid-robotics.com/wave-glider/overview/），以更好地测量和研究偏远南大洋的这些过程，否则很难获得连续数据。移动的自主水面航行器，由阳光和波浪作用提供动力，提供了一种非常具有成本效益的方式来解决在偏远的南大洋获得无人值守的观测覆盖的问题。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，参观科学中心和开发教育材料。WaveGlider在导航成功的空间调查和定位时间序列测量方面有着良好的记录，否则就不适合沃茨和海况。这项研究包括增加一些新的测量能力，如（上混合）层剖面CTD绞车，高频声学多普勒湍流系统，和海洋地球化学叶绿素荧光传感器。这一增强的仪器包将用于一组南极夏季实验，观测西南极半岛附近的海洋-陆架交换沿着锋面海气相互作用。该奖项反映了NSF的法定使命，并被认为值得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来支持。