The Role of Cyclonic Upwelling Eddies in Southern Ocean CO2 Flux

气旋上升涡流在南大洋二氧化碳通量中的作用

• 批准号: 2048840
• 负责人: Don Chambers
• 金额: $ 109.75万
• 依托单位: University of South Florida
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-06-01 至 2025-05-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2048840&HistoricalAwards=false
• 关键词: Role; Cyclonic; Upwelling; Eddies; Southern

Abstract: WilliamsPart 1: Characterization of the role of eddies in wintertime air-sea carbon dioxide (CO2) fluxes in the Indian sector of the Southern Ocean pairs two autonomous sailing vehicles called Saildrones will take place during austral winter 2021.The Saildrones will carry sensors to directly measure atmospheric and oceanic concentrations of CO2 (pCO2), atmospheric pressure, and wind speed to allow calculation of air-sea CO2 flux at 5-km resolution and with similar accuracy to an underway ship-based measurements.To broaden participation in physical and chemical oceanography, robotics, and data science, PI Williams and Graduate Student will develop and deliver a Saildrone-focused lesson plan for USF’s Oceanography Camp for Girls (OCG), a hands-on three-week summer camp for 8th grade girls from the Tampa Bay, FL area. Since 1991, OCG has broadened participation by recruiting diverse young women and is recognized by NSF as a model STEM program.Part 2: The surface following floating platforms will carry sensor suites to directly measure atmospheric and oceanic concentrations of the greenhouse gas CO2 (pCO2), atmospheric pressure, and wind speed allowing direct calculation of air-sea CO2 fluxes at a resolution and an accuracy similar to that of underway ships. The overall objectives of this project are to determine the relationship between wintertime pCO2 variability and the presence and structure of eddies, and to use these relationships to create a better representation of mesoscale variability in Southern Ocean CO2 fluxes. An ability to inform data from the SOCCOM autonomous float array in crossing surface tracks will also be explored.The overall objectives of this project are to determine the relationship between wintertime pCO2 variability and the presence and structure of eddies and to use these relationships to create a better representation of mesoscale variability in Southern Ocean CO2 flux.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.

摘要：威廉姆斯第 1 部分：南大洋印度区冬季海气二氧化碳 (CO2) 通量中涡流作用的表征 两艘名为 Saildrones 的自主帆船将在 2021 年南方冬季进行。Saildrones 将携带传感器直接测量大气和海洋二氧化碳浓度 (pCO2)、大气压力和风速，以便计算 分辨率为 5 公里，精度与正在进行的船基测量相似。为了扩大对物理和化学海洋学、机器人技术和数据科学的参与，PI Williams 和研究生将为 USF 女孩海洋学营 (OCG) 开发并提供以 Saildrone 为重点的课程计划，这是一个针对佛罗里达州坦帕湾地区八年级女孩的为期三周的实践夏令营。自 1991 年以来，OCG 通过招募不同的年轻女性扩大了参与范围，并被 NSF 认可为 STEM 计划的典范。第 2 部分：浮动平台表面将携带传感器套件，直接测量大气和海洋中温室气体 CO2 (pCO2) 浓度、大气压力和风速，从而能够以与航行船舶类似的分辨率和精度直接计算海气 CO2 通量。该项目的总体目标是确定冬季 pCO2 变化与涡流的存在和结构之间的关系，并利用这些关系更好地表示南大洋 CO2 通量的中尺度变化。还将探索从跨海面轨迹中的 SOCCOM 自主浮标阵列获取数据的能力。该项目的总体目标是确定冬季 pCO2 变化与涡流的存在和结构之间的关系，并利用这些关系更好地表示南大洋 CO2 通量的中尺度变化。该奖项反映了 NSF 的法定使命，并通过使用基金会的智力优势和知识进行评估，被认为值得支持。 更广泛的影响审查标准。