Dissolved inorganic carbon, total alkalinity, pH, phosphate, dissolved oxygen, and other variables collected from surface discrete observations using Niksin bottle and other instruments from R/V Sultana in the southwest coast of Puerto Rico from 2009-01-05 to 2016-02-01 (NCEI Accession 0145164)

This time series dataset includes weekly and bi-weekly discrete seawater samples of pH and total alkalinity, dissolved inorganic carbon, phosphates and profile measurements of temperature and salinity from 2009 to 2015. These are used to track the dynamics and controls on local carbon chemistry at the southwest part of Puerto Rico in support of the ocean acidification and water quality research in regional coastal and near-shore zones. Some of these environmental parameters have been monitored since 2009 when the National Oceanic and Atmospheric Administration (NOAA) Coral Health and Monitoring Program established the Atlantic Ocean Acidification Test-Bed (AOAT) at the Marine Reserve of La Parguera, Puerto Rico. As a key part of this project, a moored autonomous pCO2 system (MAPCO2) was deployed along the fore-reef of Enrique shelf reef and a discrete sampling at the Marine Reserve for data validation and calibration commenced. This monitoring effort supports the requirements of the recent implementation of La Parguera as a Class III climate and ecosystem monitoring station through the National Coral Reef Monitoring Program (NCRMP) in support of the NOAA Coral Reef Conservation Program (CRCP) and the Ocean Acidification Program (OAP).

本时间序列数据集涵盖2009年至2015年间采集的周度及双周离散海水样本，检测参数包括pH值、总碱度、溶解无机碳与磷酸盐，同时包含同期的温度与盐度剖面测量数据。该数据集旨在追踪波多黎各西南部海域的本土碳化学动态与调控机制，为区域沿海及近岸海域的海洋酸化与水质研究提供支撑。自2009年起，部分环境参数便已纳入监测范畴：彼时美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration，NOAA）珊瑚健康与监测项目，在波多黎各拉帕尔格拉海洋保护区设立了大西洋海洋酸化试验台（Atlantic Ocean Acidification Test-Bed，AOAT）。作为本项目的核心环节，研究团队在恩里克岸礁的礁前带部署了锚定自主式pCO₂系统（Moored Autonomous pCO2 System，MAPCO2），并同步启动拉帕尔格拉海洋保护区内的离散采样工作，用于数据验证与校准。本次监测工作通过美国国家珊瑚礁监测计划（National Coral Reef Monitoring Program，NCRMP），满足了将拉帕尔格拉升级为三级气候与生态系统监测站的相关要求，同时为美国国家海洋和大气管理局珊瑚礁保护计划（Coral Reef Conservation Program，CRCP）与海洋酸化计划（Ocean Acidification Program，OAP）提供支撑。