Color Reflectance (Spectrophotometer) of IODP Hole 386-M0087C@en

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. […]本数据集涵盖国际大洋发现计划（International Ocean Discovery Program, IODP）386次航次（日本海沟古地震学研究）指定钻孔的颜色反射光谱光度学与色度学数据。本次数据采集工作于该航次的陆上阶段开展，时间为2022年2月14日至2022年3月15日，作业于D/V Chikyu号钻探船。对岩心剖面进行纵向劈分后，采用三传感器岩心测井仪（Tri-Sensor Core Logger, TSCL；NS Design）对每份归档半岩心进行扫描，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观测数据。所得数据采用L*a*b*颜色坐标系表示：其中L*为总反射率指数，取值范围为0%~100%；a*代表绿（数值<0）至红（数值>0）色度分量，b*代表蓝（数值<0）至黄（数值>0）色度分量。使用MATLAB的lab2rgb函数将L*a*b*色彩值转换为RGB色彩值。[…]