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).

固定系泊与海底安装的观测仪器（声学多普勒流速剖面仪（ADCP）、温盐深仪（CTD）、热敏电阻器、波潮仪）于法属波利尼西亚莫雷阿岛礁的长期生态研究（Long Term Ecological Research, LTER）4号前礁站点（FOR04）开展全年连续采样，采样工作始于2005年。所有数据已插值至20分钟的时间网格。ADCP数据按距底高度划分为1米间隔的测层，最大覆盖20个测层；部分测层可能无有效数据，尽管后期处理尝试剔除“超出海面”的测层数据，但用户仍需对近海面测层的使用保持谨慎。CTD参数包含压力、温度、电导率、盐度与密度。两套系泊式CTD观测舱分别安装于距底约5米和14米处，另有至多5个沿系泊缆绳垂直布设的热敏电阻温度传感器。需注意，上部CTD与热敏电阻的观测数据已于2020年1月终止采集；海底CTD的观测于2021年7月终止。系泊站点附近另有2个海底安装的热敏电阻，布设深度分别为10米与20米。一台海底安装的波潮仪以2小时的采样间隔记录有效波高与主波周期；潮汐相关数据可通过海底压力传感器数据计算得到。

本研究数据源自美国国家科学基金会（National Science Foundation, NSF）资助的莫雷阿珊瑚礁长期生态研究（Moorea Coral Reef Long Term Ecological Research, MCR LTER）站点，项目编号为OCE 2224354（及此前资助项目）。莫雷阿珊瑚礁长期生态研究站点还获得了戈登与贝蒂·摩尔基金会的慷慨捐赠支持。本研究依据法属波利尼西亚政府研究代表团与法国驻波利尼西亚高级专员公署（DTRT）签发的许可开展，配套接待议定书有效期为2005-2024年。