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首页> 外文期刊>Oceanography >EFFECTS OF RAINFALL ON THE ATMOSPHERE AND THE OCEAN DURING SPURS-2
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EFFECTS OF RAINFALL ON THE ATMOSPHERE AND THE OCEAN DURING SPURS-2

机译：暴雨对SPURS-2期间大气和海洋的影响

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摘要

The salinity variability of the upper ocean is influenced by surface heat, momentum, and freshwater fluxes, which are in turn affected by atmospheric conditions. It is necessary to accurately measure these surface fluxes within their atmospheric environment to understand the linkages between rain events and the resulting upper-ocean salinity balance that occurs at cloud scales. We describe a comprehensive set of atmospheric and oceanic data collected during the second Salinity Processes in the Upper-ocean Regional Study (SPURS-2) experiment in the tropical eastern Pacific Ocean. These measurements included direct estimates of heat, moisture, and momentum fluxes using direct covariance flux systems on R/V Roger Revelle and a 3 m discus buoy. These are the first successful direct measurements of evaporation from a buoy over an extended period. The atmospheric moisture budget is estimated from a combination of data, including measured freshwater fluxes, upper air sounding data, and satellite data. This analysis reconfirms the important role of moisture convergence beneath the Intertropical Convergence Zone in this region. We perform an analysis of the near-surface vertical salinity structure and its relationship to these surface fluxes, highlighting the roles of stabilization by solar insolation and precipitation and the effects of rainfall on mixing of the upper ocean.
机译：上层海洋的盐度变化受地表热量，动量和淡水通量的影响，而地表热量，动量和淡水通量又受大气条件的影响。有必要在大气环境中准确测量这些表面通量，以了解降雨事件与由此产生的云层尺度上海洋盐度平衡之间的联系。我们描述了在热带东部太平洋上海洋区域研究（SPURS-2）实验中第二次盐度过程中收集的一套全面的大气和海洋数据。这些测量包括使用R / V Roger Revelle上的直接协方差通量系统和3 m铁饼浮标直接估算热量，水分和动量通量。这是长时间以来首次成功直接测量浮标的蒸发量。大气湿度预算是根据数据组合估算的，包括测得的淡水通量，高层大气探测数据和卫星数据。这项分析再次证实了该地区热带辐合带下水分辐合的重要作用。我们对近地表垂直盐度结构及其与这些表面通量的关系进行了分析，强调了日照和降水稳定作用以及降雨对上层海洋混合的影响。

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