RAMHS: Three Dimensional Distribution of Particle Concentration and Size Spectra in the South Atlantic: Indicator of Oceanic Processes

颗粒物质的分布是表层和底层水体中初级生产、上升流、大尺度涡旋、沉积物再悬浮和平流、边界层混合等物理和生物过程的敏感指标。本提案要求资助参加南大西洋通风实验（SAVE）的五(5)次巡航和McCartney等人在南大西洋的水文巡航，通过将透射仪与CTD连接以获取水文剖面并分析水，确定南大西洋颗粒物的三维分布和大小光谱用库尔特计数器对整个水柱的颗粒浓度和大小分布进行采样。这些数据将与今年在南大西洋另外两次巡航中收集的传输仪数据的横断面数据相结合。粒子数据将用于确定上述过程的位置和强度，并将与其他水文数据相关联，以研究其原因和影响。

The distribution of particulate matter is a sensitive indicator in surface and botton waters of physical and biological processes such as primary production, upwelling, large-scale eddies, resuspension and advection of sediments, and boundary- layer mixing. This proposal requests funding to participate on five (5) cruises in the South Atlantic Ventilation Experiment (SAVE) and a McCartney et al. hydrographic cruise in the South Atlantic to determine the three-dimensional distribution and size spectra of particulate matter in the South Atlantic by interfacing a transmissometer with a CTD for hydrographic profiles and analyzing water samples for particle concentrations and size distributions throughout the water column using a Coulter counter. These data will be combi>ed with transects of transmissometer data collected this year during two other cruises in the South Atlantic. The particle data will be used >o determine the location and intensity of the processes mentioned above and will be correlated with other hydrographic data to study their causes and effects.