Temperature-Salinity Variability in the Upper Ocean

上层海洋的温度-盐度变化

• 批准号: 9529752
• 负责人: Daniel Rudnick
• 金额: $ 29.39万
• 依托单位: University of California-San Diego Scripps Inst of Oceanography
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-15 至 1999-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9529752&HistoricalAwards=false
• 关键词: Temperature; Salinity; Variability; Upper; Ocean

9529752 Rudnick This project will observe temperature (T) and salinity (S) in the upper ocean and evaluate competing hypotheses about how T-S variability along isopyclals, introduced by surface fluxes and advection, is reduced to establish a T-S relationship. This area of investigation is of great importance to understanding near-surface processes and their relationship to the large-scale circulation, but remains virtually unexplored. Recent developments in towed vehicles make this exploration possible now. Changes in the T-S relationship and the density ratio with changing horizontal scale will be key elements in distinguishing competing theories of T-S regulation. Field data will be obtained using a depth-controllable, towed vehicle (SeaSoar) equipped with T, S, and pressure sensors. Three different sampling strategies (constant depth, isopycnal, and sawtooth) will be employed during a series of long (1000 km) tows. ***

小行星9529752 该项目将观测海洋上层的温度（T）和盐度（S），并评价关于如何减少由表面通量和平流引起的沿着等旋线的T-S变化以建立T-S关系的相互竞争的假设。这一领域的调查是非常重要的，了解近地表的过程及其关系的大规模流通，但仍然几乎没有探索。最近拖曳车辆的发展使这种探索成为可能。T-S关系和密度比随水平尺度变化的变化将是区分T-S调节竞争理论的关键因素。现场数据将使用配备有T、S和压力传感器的深度可控的拖曳式潜水器（SeaSoar）获得。 在一系列长（1000 km）拖航期间，将采用三种不同的取样策略（恒定深度、等密度线和等密度线）。 ***