Sustained measurements of Southern Ocean air-sea coupling from a mobile autonomous platform

通过移动自主平台对南大洋海气耦合进行持续测量

• 批准号: 1558448
• 负责人: James Girton
• 金额: $ 91.94万
• 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: 2016
• 资助国家: 美国
• 起止时间: 2016-05-01 至 2020-04-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1558448&HistoricalAwards=false
• 关键词: Sustained; measurements; Southern; Ocean; air

The coupled air-sea dynamics of the Southern Ocean play a critical role in the ocean?s transport and storage of heat and carbon dioxide and the response of these processes to climate change. This project advances our capability to observe air-sea dynamics under winds through a 6-month deployment of a wave glider. The wave glider has been adequately demonstrated as a robust high-endurance platform for open-ocean work and has begun to demonstrate its capability for research-quality measurements. This project will advance that capability by increasing our understanding of vehicle and sensor performance and suitability for measuring air?sea fluxes of momentum, moisture, and heat. Simultaneously, the vehicle will be used to study critical scientific questions on air-sea interactions. The project will include graduate and undergraduate student training and outreach activities through local schools, the Seattle Aquarium, and the Pacific Science Center.The main research topics addressed in this project are the spatial structure of winds and surface properties in the Southern Ocean, the influence of surface wave Stokes drift on Ekman transport in the upper ocean, wave modulation of wind stress, near-inertial wind energy input into the ocean, and the coupling between winds and sea surface temperature. The observations will be taken by a Liquid Robotics Wave Glider SV3 autonomous surface vehicle instrumented for measurements of surface waves, temperature and salinity, upper-ocean currents, barometric pressure, and winds. Deployment and recovery will exploit planned cruises maintaining the Ocean Observatories Initiative Southern Ocean array and re-supplying the US Antarctic Program's Palmer Station. The sampling plan consists of (1) three months near the Ocean Observatories Initiative air-sea interactions buoy to study spatial structure and allow cross-calibration of the various sensors and their responses to vehicle heading and wind and wave conditions; (2) two months conducting a downstream grid survey across the Antarctic Circumpolar Current towards Drake Passage; and (3) a month-long timeseries in southern Drake Passage in the weak-current region between the Polar Front and the Southern ACC Front before recovery from the R/V Laurence M. Gould.

南大洋的耦合空气动力学在海洋的运输和储存二氧化碳的运输和储存中起着至关重要的作用，以及这些过程对气候变化的反应。 该项目通过波滑翔机进行了6个月的部署，可以提高我们观察风能下空气动态的能力。 波滑翔机已被充分证明是开放式工作的强大高耐用平台，并已开始证明其用于研究质量测量的能力。该项目将通过提高我们对车辆和传感器性能的理解以及用于测量空气的适用性来提高能力？势头，水分和热量的海量。同时，该车辆将用于研究有关空气相互作用的关键科学问题。 The project will include graduate and undergraduate student training and outreach activities through local schools, the Seattle Aquarium, and the Pacific Sc​​ience Center.The main research topics addressed in this project are the spatial structure of winds and surface properties in the Southern Ocean, the influence of surface wave Stokes drift on Ekman transport in the upper ocean, wave modulation of wind stress, near-inertial wind energy input into the ocean, and the coupling between winds and sea surface temperature.观察结果将由液体机器人波滑翔机SV3自动表面车辆进行测量，以测量表面波，温度和盐度，上海流，大气压力和风。部署和恢复将利用计划的巡航，以维护海洋天文台倡议，南大洋阵列并重新供应美国南极计划的帕尔默站。采样计划包括（1）在海洋天文台附近的三个月组成的气海相互作用浮标，以研究空间结构，并允许对各种传感器进行交叉校准及其对车辆标题以及风和波浪条件的响应； （2）两个月在南极圆极电流向Drake传递的下游网格调查； （3）在极性阵线和南部ACC阵线之间的弱流区域的南部德雷克通道中为期一个月的时间，然后从R/V Laurence M. Gould恢复。