Interaction of Dynamics and Thermodynamics along the Boundaries of the North Pacific Subtropical Gyre

沿着北太平洋副热带环流边界的动力学和热力学的相互作用

• 批准号: 9818920
• 负责人: LuAnne Thompson
• 金额: $ 41.58万
• 依托单位: University of Washington
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-03-01 至 2004-02-29
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9818920&HistoricalAwards=false
• 关键词: Interaction; Dynamics; Thermodynamics; along; Boundaries

9818920ThompsonThe project is for a study of ocean dynamics and thermodynamics along the boundaries of the subtropical gyre in the North Pacific. The observed variability in surface height and temperature will be compared with numerical runs using Princeton isopycnal model. Along the northern boundary, the hypothesis is that this is where the mode waters are formed, which can carry information from atmospheric forcing into the ocean interior. An isopycnal model with an embedded bulk-mixed-layer will be used to investigate where in the water column heat content changes and whether these changes could affect SST at a later time. At the southern boundary of the gyre, the numerical model will be used to investigate whether this response is due to the interaction of the shoaling thermocline with buoyancy forcing in the mixed layer. The objective is to improve both model performance and interpretation of surface observations. After confirming model accuracy with observations, the model will be used to extend the analysis to longer time scales than are available from satellite measurements.

9818920汤普森该项目是研究北太平洋副热带环流边界沿着的海洋动力学和热力学。 观测到的地表高度和温度的变化将与使用普林斯顿等密度模型的数值运行进行比较。 沿着沿着北方边界，假设这是模态沃茨形成的地方，它可以将大气强迫的信息带入海洋内部。 将使用一个带有嵌入式大体积混合层的等密度模式来研究水柱中热含量的变化以及这些变化是否会在以后影响SST。在环流的南部边界，数值模型将被用来调查是否这种反应是由于浅水温跃层与浮力强迫在混合层的相互作用。 其目的是提高模型性能和地面观测的解释。 在通过观测确认模型准确性之后，将利用该模型将分析扩展到比卫星测量所能提供的时间尺度更长的时间尺度。