Collaborative Proposal: Assimilation of Current Data into 2-D and 3-D Barotropic Tidal Models

合作提案：将当前数据同化为 2-D 和 3-D 正压潮汐模型

• 批准号: 9908091
• 负责人: Gary Egbert
• 金额: $ 8.95万
• 依托单位: Oregon State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-04-01 至 2003-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9908091&HistoricalAwards=false
• 关键词: Collaborative; Proposal; Assimilation; Current; Data

9908091Padman/EgbertIn this work, sub-surface current meter data will be assimilated into two and three-dimensional numerical models of tidal flows in the Weddell Sea. Inverse methods will be used to guide improvements of parameterizations of the effects of diurnal vorticity waves and of friction in the bottom boundary layer. Since the Weddell Sea is close to the critical latitudes for the main semi-diurnal tide and has weak stratification, the bottom boundary layer is thick and the tidal flow is relatively barotropic, simplifying the modeling task and allowing a better characterization of the flow by the current meters.

9908091 Padman/Egbert在这项工作中，次表层流速计数据将被同化到威德尔海的潮汐流的二维和三维数值模型中。 逆方法将被用来指导改进的参数化的影响，周日涡度波和摩擦的底部边界层。 由于威德尔海接近主要半日潮的临界纬度，分层较弱，底部边界层较厚，潮汐流相对正压，简化了建模任务，并允许通过流速计更好地表征水流。