pH, temperature, salintiy, and oxygen time series measurements from the Chukchi Ecosystem Observatory CEO2 mooring deployed at 33 meters depth in the Northeast Chukchi Sea

This dataset presents a data record of the pH, temperature, salinity, and oxygen from the Chukchi Ecosystem Observatory. These data are presented both as csv-formatted tabular data and as self-describing netCDF files. The Chukchi Ecosystem Observatory (CEO) is a set of subsurface moorings on the NE Chukchi Sea continental shelf that is annually recovered and re-deployed (Hauri et al., 2018). The mooring observatory is located on the southern flank of Hanna Shoal, 70 miles offshore, at 71.6 °N and 161.5 °W. The instruments record with high temporal resolution throughout the year, including the under-sampled and poorly understood seasons when sea ice typically inhibits ship-based sampling. The observatory records physical, nutrient and carbonate chemistry, particulate, phytoplankton, zooplankton, and fisheries data sets, thereby providing an unprecedented view into the mechanistic workings of the Chukchi shelf ecosystem. While increasing temperatures and melting sea ice act as direct stressors on the ecosystem, they also indirectly enhance ocean acidification, moving the system across potentially harmful thresholds. With these data, we hope to gain a better understanding of current state and variability of the inorganic carbon system in these remote places.

本数据集收录了楚科奇生态观测站（Chukchi Ecosystem Observatory）采集的pH值、温度、盐度与溶解氧数据记录。该数据集以两种格式提供数据：逗号分隔值（CSV）格式的表格数据，以及自描述型netCDF文件。楚科奇生态观测站（CEO）由布设于楚科奇海东北大陆架的多套水下锚定系统组成，每年均会进行回收与重新布设（Hauri等，2018）。该锚定观测站位于汉娜浅滩南翼，离岸70英里，坐标为北纬71.6°、西经161.5°。观测设备全年以高时间分辨率开展数据采集，覆盖了海冰通常阻碍船舶采样、因而此前采样不足且认知匮乏的季节。该观测站可采集物理海洋、营养盐、碳酸盐化学、颗粒物质、浮游植物、浮游动物以及渔业相关数据集，从而为解析楚科奇大陆架生态系统的机制性运作过程提供了前所未有的视角。尽管海水升温与海冰消融是该生态系统的直接胁迫因子，但它们同时也会间接加剧海洋酸化，使该生态系统越过潜在的有害阈值。依托本数据集，我们期望能更深入地理解这些偏远海域无机碳系统的当前状态与变化特征。