PacMARS Bottom Water Nutrients (1988-2012)

This dataset contains water column samples that were collected at designated bottom water depths during the cruises, primarily utilizing a CTD/rosette bottle system, although sometimes with a water pumping system (COMIDA CAB 2009 and 2010). Cruises included in this synthesis data set are outlined in the Pacific Marine Arctic Regional Synthesis (PacMARS) Final Report, Methods section to be posted on the PacMARS website (http://pacmars.cbl.umces.edu/). Each sample depth has associated latitude, longitude, water depth, and four nutrient collections: silica, nitrite/nitrate, phosphate and ammonia. Note that many of these data are also listed in full hydrographic files. Links to these referenced files can be found in the README documentation.

本数据集收录了航次期间于指定底层水深位置采集的水柱样本，采样工作主要采用CTD/罗西特采水瓶系统（CTD/rosette bottle system），部分航次（2009与2010年COMIDA CAB航次）则使用抽水系统完成采样。本综合数据集涵盖的所有航次信息，详见将发布于太平洋-北极区域综合研究（PacMARS）官网（http://pacmars.cbl.umces.edu/）的《PacMARS最终报告》方法学章节。每个采样站位均附带纬度、经度、实测水深四项地理与水深参数，以及四项营养盐检测数据：硅酸盐、亚硝酸盐/硝酸盐、磷酸盐与氨氮。需注意的是，本数据集的大量数据同时完整收录于官方水文档案文件中，相关参考文件的获取链接可在README文档中查阅。