Conductivity, Water Temperature, and others collected from R/V Pelican in Gulf of Mexico from 2013-05-16 to 2013-05-18 (NCEI Accession 0156661)

The main goals of this cruise were as follows: (1) Recover six moorings, including one sound source, and three trawl resistant bottom mounts concentrated in the upper De Soto Canyon. Instruments recovered have collected a years worth of: temperature, conductivity, pressure and current data. (2) Occupy CTD stations at the mooring locations and along the western edge of De Soto Canyon, collecting measurements of: temperature, conductivity, pressure, dissolved oxygen, turbidity (amount of suspended particles in the water), optical properties of water (transmittance or attenuation of incident radiation), and chlorophyll -A. (3) Sample water from the western edge of De Soto Canyon, up to and including mooring M6, in order to better understand the cholorophyll max. Collected samples will be analyzed for methane concentration, oxygen concentration, nutrients, cell microscopy, microbes (for DNA/RNA work) and particulate organic carbon (for carbon isotope work). (4) Acquire shipboard ADCP data (75kHz, 150kHz, and 300 kHz), from surface to bottom, for the duration of the cruise. This dataset contains CTD data from this cruise.

本航次的主要目标如下：
(1) 回收6套锚系系统（moorings），其中包含1套声源装置，以及3台集中布放在德索托峡谷（De Soto Canyon）上段的抗拖网底置观测装置（trawl resistant bottom mounts）。回收的观测仪器已获取了为期一年的温度、电导率、压力及海流数据。
(2) 在锚系布放站位及德索托峡谷西缘设置温盐深剖面仪（CTD，Conductivity-Temperature-Depth）观测站位，采集以下参数：温度、电导率、压力、溶解氧、浊度（水体悬浮颗粒物含量）、水体光学特性（入射辐射的透射率或衰减率）以及叶绿素a（chlorophyll-A）。
(3) 从德索托峡谷西缘直至锚系M6站位开展水样采集，以深入解析叶绿素最大值层。采集的水样将被用于以下分析：甲烷浓度、溶解氧浓度、营养盐、细胞显微观测、微生物样本（用于DNA/RNA相关研究）以及颗粒有机碳（用于碳同位素分析）。
(4) 在整个航次期间，采集覆盖从表层至海底全水层的船载声学多普勒流速剖面仪（ADCP，Acoustic Doppler Current Profiler）数据，采集频段涵盖75kHz、150kHz及300kHz。
本数据集包含本次航次获取的温盐深剖面仪观测数据。