Color Reflectance (Spectrophotometer) of IODP Hole 386-M0087D

Color reflectance spectrophotometry and colorimetry data from the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The data where obtained during the onshore phase of expedition 386 which took place between 2022-02-14 – 2022-03-15 onboard D/V Chikyu. After longitudinal splitting of the core sections, each archive half was scanned by the Tri-Sensor Core Logger (TSCL; NS Design) including a noncontact imaging spectrophotometer (MetaVue VS3200; X-Rite), recording data at 2-cm sampling interval. The obtained data is represented in the L*a*b* color coordinate system, where L* is a total reflectance index ranging 0%–100%, a* is green (<0) to red (>0) chromaticity, and b* is blue (<0) to yellow (>0) chromaticity. L*a*b* values were transferred into RGB values using the MATLAB routine lab2rgb. […]

本数据集包含国际大洋发现计划（International Ocean Discovery Program, IODP）第386航次（日本海沟古地震学研究）指定钻孔的颜色反射光谱光度法与色度学数据。该数据采集自第386航次的陆上作业阶段，作业时间为2022年2月14日至2022年3月15日，作业平台为“地球号”（D/V Chikyu）钻探船。岩心剖面经纵向劈开后，每份归档半岩心均通过三传感器岩心测井仪（Tri-Sensor Core Logger, TSCL；NS Design）完成扫描，该仪器搭载非接触式成像分光光度计（MetaVue VS3200；X-Rite），以2厘米的采样间隔记录数据。所获数据以L*a*b*颜色坐标系呈现，其中L*为总反射率指数，取值范围为0%~100%；a*代表绿（值<0）至红（值>0）色度轴；b*代表蓝（值<0）至黄（值>0）色度轴。研究人员通过MATLAB内置函数lab2rgb将L*a*b*色彩值转换为RGB色彩值。[...]