Current Data Assimilation into 2-D and 3-D Barotropic Ocean Tidal Models
Current Data Assimilation into 2-D and 3-D Barotropic Ocean Tidal Models
批准号:
9906926
负责人:
Laurence Padman
金额:
$6.93万
依托单位:
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
项目状态:
已结题
起止时间:
2000-04-01 至 2002-03-31
中文摘要
9908091Padman/Egbert在这项工作中,次表层海流计数据将被同化为韦德尔海潮流的二维和三维数值模型。将使用逆方法来指导改进对日涡度波和底部边界层中的摩擦的影响的参数化。由于韦德尔海接近主半日潮汐的临界纬度,层结较弱,底部边界层较厚,潮汐气流相对正压,简化了模拟任务,使海流计更好地表征了潮流。
英文摘要
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.
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