Particle birefringence photon yield and particle beam attenuation coefficient derived from optical particle sensors deployed on GTC CTD casts on the U.S. GEOTRACES Pacific Meridional Transect (PMT) cruise (GP15) on R/V Roger Revelle from Sept-Nov 2018

This data set was derived from optical particle sensors deployed during casts of the GEOTRACES Trace Metal Carousel (GTC) as part of the GEOTRACES Pacific Meridional Transect (GP15 expedition). There are several related data files provided. Data files are provided containing the average of all optical data profiles at each station for 0-500 meters (m) depth as well as for the full depth of the water column (6000 meters). CTD data used in the profile data calculations are also provided.本数据集源自部署于全球海洋痕量金属与同位素研究计划（GEOTRACES）痕量金属旋转架（GTC）科考站位作业期间的光学粒子传感器，相关部署工作作为该计划太平洋经向断面（GP15）科考航次的组成部分开展。本次发布附带多份相关数据文件：所提供的数据文件包含各站位0至500米深度以及整个水柱（6000米）范围内所有光学剖面数据的平均值；剖面数据计算中使用的温盐深（CTD）数据亦一并提供。