MCR LTER: Coral Reef: Ocean Currents and Biogeochemistry: salinity, temperature and current at CTD and ADCP mooring FOR04 from 2004 ongoing

Moored and bottom-mounted instrumentation (ADCP, CTD, thermistors, wave-tide meters) sampled year-round on the reef of Moorea Island, French Polynesia at LTER 4 fore reef site (FOR04). Sampling began in 2005. All data have been interpolated onto a 20 min grid. ADCP data are organized into 1-meter bins, measured as height from the bottom, to a maximum of 20 bins. All bins may not be filled, and although post-processing attempted to exclude data from bins 'above the surface', users need to exercise caution with the near-surface bins. CTD parameters include Pressure, Temperature, Conductivity, Salinity, and Density. The two moored CTD packages are located approximately 5 and 14 meters above the bottom, and there are up to 5 additional temperature thermistors spaced vertically along the mooring line. Note that the upper CTD and temperature thermistor data were terminated in January 2020. Bottom CTD was terminated July 2021. There are 2 bottom mounted thermistors in the vicinity of the mooring at 10 and 20 meter depth. A bottom-mounted wave-tide meter provides a measure of significant wave height and dominant wave period at a 2-hour sampling interval. Tide-related data may be calculated from bottom-mounted pressure sensor data. This material uses data collected by the U.S. National Science Foundation's (NSF) Moorea Coral Reef Long Term Ecological Research (MCR LTER) site under Grant No. OCE 2224354 (and earlier awards). Additional financial support to the MCR LTER site was provided through a generous gift from the Gordon and Betty Moore Foundation. Research was completed under permits issued by the French Polynesian Government (Délégation à la Recherche) and the Haut-commissariat de la République en Polynésie Francaise (DTRT) (Protocole d'Accueil 2005-2024).

系泊与底置式观测仪器（包括声学多普勒流速剖面仪（ADCP）、温盐深仪（CTD）、热敏电阻温度传感器、波潮仪）于法属波利尼西亚莫雷阿岛的长期生态研究站点（LTER）4号前礁站点（FOR04）开展全年连续采样工作，采样始于2005年。所有数据均已插值至20分钟时间步长的网格中。ADCP数据按距底高度以1米为分层单元进行组织，最大分层数为20层。并非所有分层均会采集到有效数据，尽管后期处理尝试剔除"水面以上分层"的观测数据，但使用者仍需对近表层分层数据保持审慎。温盐深仪（CTD）的观测参数涵盖压力、温度、电导率、盐度与密度。两套系泊式CTD探头分别布设于距底约5米与14米处，另有最多5支温度热敏电阻传感器沿系泊缆绳垂直布设。需注意，表层CTD与热敏电阻温度传感器的观测数据采集已于2020年1月终止，底置式CTD的采集工作则于2021年7月停止。系泊站点附近布设了2台底置式热敏电阻温度传感器，布设深度分别为10米与20米。一台底置式波潮仪以2小时的采样间隔记录有效波高与优势波周期。潮汐相关数据可通过底置式压力传感器的观测数据计算得到。本数据集所用数据由美国国家科学基金会（NSF）资助的莫雷阿珊瑚礁长期生态研究（MCR LTER）站点采集，资助项目编号为OCE 2224354（及此前的资助项目）。莫雷阿珊瑚礁长期生态研究站点同时获得了戈登与贝蒂·摩尔基金会的慷慨资助。本研究的开展依托法属波利尼西亚政府研究代表团（Délégation à la Recherche）与法国驻波利尼西亚高级专员公署（DTRT，2005-2024年接待议定书）颁发的许可文件。