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

颗粒物的分布是表层和底层水域物理和生物过程的敏感指标，如初级生产、上升流、大尺度涡旋、沉积物的再悬浮和平流以及边界层混合。该提案要求提供资金，以参加南大西洋通风实验(SAVE)的五(5)次巡航和McCartney等人的一次巡航。在南大西洋进行水文学巡航，以确定南大西洋颗粒物的三维分布和粒度谱，方法是将透射计与CTD对接以获得水文学剖面，并使用库尔特计数器分析水样在整个水柱中的颗粒浓度和粒度分布。这些数据将与今年在南大西洋另外两次航行中收集的透射计横断面数据结合起来。颗粒数据将被用来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.