Shelf-Edge Circulation on the West Antarctic Peninsula from Archived ADCP Data: Follow-on Analyses

根据 ADCP 存档数据得出的西南极半岛陆架边缘环流：后续分析

• 批准号: 0944553
• 负责人: Dana Savidge
• 金额: $ 31.96万
• 依托单位: University of Georgia Research Foundation Inc
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-07-01 至 2015-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0944553&HistoricalAwards=false
• 关键词: Shelf; Edge; Circulation; West; Antarctic

Over the past decade the USAP ships, RV/AS Gould and RV/IB Palmer, have used hull-mounted acoustic Doppler current profilers (ADCP) to routinely record underway, along track velocity profiles beneath the ships. This has resulted in a growing database of ADCP transects, especially in the region of the West Antarctic Peninsula (WAP). Combined with other hydrographic data (e.g. XBT/ XCTD data, drifter tracks, some limited moorings) this current velocity data will be used for further analysis of the physical circulation in this ecologically and climatically sensitive region of the Southern Ocean. Processes including inter-annual and spatial variability of WAP shelf-edge and cross-shelf transport, the effects of tides, circulation controls upon sea-ice formation and associated Antarctic ecosystems (e.g. krill) are some of the key circulation features that may be more accurately inferred from these combined data sets. This study will support the development of a graduate student in descriptive physical oceanography, and introduce undergraduate students to quantitative scientific analysis.

在过去的十年里，USAP船，RV/AS古尔德和RV/IB帕尔默，使用船体安装的声学多普勒海流剖面仪(ADCP)定期记录在航中，沿着船舶下方的轨道速度剖面。这导致ADCP横断面数据库不断扩大，特别是在西南极半岛(WAP)地区。结合其他水文数据(如XBT/XCTD数据、漂流航迹、一些有限的系泊)，这些流速数据将用于进一步分析南大洋这一生态和气候敏感区域的物理环流。包括WAP陆架边缘和跨陆架运输的年际和空间变异性、潮汐的影响、对海冰形成的环流控制以及相关的南极生态系统(例如磷虾)等过程是一些关键的环流特征，可以从这些综合数据集更准确地推断出这些特征。这项研究将支持描述物理海洋学研究生的发展，并向本科生介绍定量科学分析。