Water temperature, salinity, and other data from CTD taken from the RV Sikuliaq in the Pacific Ocean between San Diego, California and Manzanillo, Mexico from 2016-12-21 to 2017-01-13.

<p>Hydrographic data were collected using a Seabird CTD Niskin Bottle Rosette, deployed at a wire speed between 40 and 60 meters per minute.&nbsp;</p>

<p>Nutrient samples were filtered (GFF glass fiber) before analysis and analyzed using the US-JGOFS protocols (http://usjgofs.whoi.edu/protocols_rpt_19.html) at the UW Marine Chemistry Laboratory.</p>

<p>The Seabird CTD Niskin Bottle Rosette included the following sensors: Seabird 911 Conductivity Temperature Density meter; Seabird SBE 43 Dissolved Oxygen Sensor; WETLabs ECO Chlorophyll Fluorometer; Biospherical/Licor PAR/Irradiance Sensor; WETLabs C- Star Transmissometer.&nbsp;</p>

<p>CTD data were processed using Seabird proprietary data conversion software and factory calibration coefficients; dissolved oxygen voltage was aligned using a time advance of 2.33 seconds; downcast data were averaged into 1 meter bins. CTD data has been reprocessed and aligned and outliers have been removed. All data are considered final.</p>

<p>This data is available at National Centers for Environmental Information (NCEI).</p>

<p>NCEI Accession: 0164968</p>

<p>Link:&nbsp;<a href=\"https://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/details/164968\" target=\"_blank\">https://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/details/164968</a></p>

本研究采用海鸟（Seabird）公司CTD-尼斯金采水器罗塞塔架采集水文数据，布放时缆绳下放速度控制为40~60米/分钟。

营养盐样品在分析前采用GFF玻璃纤维滤膜过滤，随后于华盛顿大学（UW）海洋化学实验室，按照美国全球海洋通量联合研究（US-JGOFS）规程（http://usjgofs.whoi.edu/protocols_rpt_19.html）完成分析。

该海鸟CTD-尼斯金采水器罗塞塔架搭载的传感器如下：海鸟911型电导率-温度-密度仪、海鸟SBE 43型溶解氧传感器、WETLabs公司ECO型叶绿素荧光计、Biospherical/Licor公司PAR/辐照度传感器，以及WETLabs公司C-Star型透射率计。

CTD数据采用海鸟公司专有数据转换软件及原厂校准系数进行处理；溶解氧电压信号通过2.33秒的时间偏移完成对齐；下行剖面数据以1米为间隔进行平均。本数据集的CTD数据已完成重新处理、信号对齐及异常值剔除，所有数据均为最终定稿数据。

本数据集可于美国国家环境信息中心（National Centers for Environmental Information, NCEI）获取。

NCEI存档编号：0164968

数据链接：<a href="https://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/details/164968" target="_blank">https://www.nodc.noaa.gov/cgi-bin/OAS/prd/accession/details/164968</a>