Air-Sea Fluxes of Momentum, Heat, and Carbon Dioxide at High Wind Speeds in the Southern Ocean

南大洋高风速下的动量、热量和二氧化碳的海气通量

• 批准号: 1043623
• 负责人: Scott Miller
• 金额: $ 49.68万
• 依托单位: SUNY at Albany
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-06-15 至 2016-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1043623&HistoricalAwards=false
• 关键词: Air; Sea; Fluxes; Momentum; Heat

Accurate parameterizations of the air-sea fluxes of CO2 into the Southern Ocean, in particular at high wind velocity, are needed to better assess how projections of global climate warming in a windier world could affect the ocean carbon uptake, and alter the ocean heat budget at high latitudes. Air-sea fluxes of momentum, sensible and latent heat (water vapor) and carbon dioxide (CO2) are to be measured continuously underway on cruises using micrometeorological eddy covariance techniques adapted to ship-board use. The measured gas transfer velocity (K) is then to be related to other parameters known to affect air-sea-fluxes. A stated goal of this work is the collection of a set of direct air-sea flux measurements at high wind speeds, conditions where parameterization of the relationship of gas exchange to wind-speed remains contentious. The studies will be carried out at sites in the Southern Ocean using the USAP RV Nathaniel B Palmer as measurment platform. Co-located pCO2 data, to be used in the overall analysis and enabling internal consistency checks, are being collected from existing underway systems aboard the USAP research vessel under other NSF awards.

需要对进入南大洋的二氧化碳海气通量进行准确的参数化，特别是在高风速情况下，以便更好地评估在多风世界中全球气候变暖的预测如何影响海洋碳吸收，并改变高纬度地区的海洋热收支。 将使用适合船上使用的微气象涡流协方差技术，在航行中连续测量动量、显热和潜热（水蒸气）和二氧化碳（CO2）的海气通量。然后将测得的气体传输速度 (K) 与已知影响气海通量的其他参数相关联。这项工作的既定目标是收集高风速下的一组直接空气-海洋通量测量结果，在这种情况下，气体交换与风速关系的参数化仍然存在争议。这些研究将在南大洋的地点进行，使用 USAP RV Nathaniel B Palmer 作为测量平台。 根据其他 NSF 奖项，正在从 USAP 研究船上现有的在建系统中收集同位 pCO2 数据，用于整体分析和内部一致性检查。