IMOS - Southern Ocean Time Series (SOTS) - Annual Reports: 2015/2016

The Southern Ocean Time Series (SOTS) is a Sub-Facility of the Australian Integrated Marine Observing System (IMOS), funded by the National Collaborative Research Infrastructure Strategy (NCRIS). It is operated under collaborative arrangements by the CSIRO Oceans and Atmosphere, Bureau of Meteorology, and University of Tasmania (via the Antarctic Climate and Ecosystems Cooperative Research Centre). The primary focus is sustained observing of ocean properties and processes important to climate, carbon cycling, and ocean productivity.

The SOTS Sub-facility consists of deep ocean moorings deployed in Subantarctic waters southwest of Tasmania, equipped with autonomous sensors and sample collectors. The SOTS moorings are serviced annually - the existing moorings are recovered and new moorings are deployed. Some sensor data is transmitted from the moorings via satellite in near real time. Other sensor data and samples are recovered during the annual service visit.

For each year, three reports are issued:
Report 1. Overview of mooring voyages, dates, locations, designs, instruments
Report 2. Samples from moored and shipboard sample collections
Report 3. Sensors mounted on the moorings moored and shipboard

These reports focus on metadata, i.e. descriptions of the moorings, sensors, samplers, and their deployment, recovery, processing, analysis and curation. Pointers are provided to supporting information from voyage reports and to on-line sources of the data. Shipboard sensor and sample measurements made during the service visits are also described.

Report 1. Overview - describes the deployment and recovery of the moorings. It provides their locations, drawings of their designs, and lists of each instrument deployed and the variables measured. It also summarizes ancillary measurements and sample collections made during the deployment and recovery voyages.

Report 2. Samples - describes 3 main types of samples and associated composition measurements:
1. Sediment trap samples collected by the Subantarctic Zone (SAZ) mooring.
2. Water samples collected by the RAS water sampler deployed on either the Pulse or Southern Ocean Flux Station (SOFS) mooring, and collected by the TM sampler deployed on the SOFS mooring.
3. Samples collected with other devices during the SOTS service voyages, e.g. from CTD Niskin bottles, underway supply, in-situ pumps, continuous plankton recorders, and nets.
Note that not all these sample types were collected in any given year.

Report 3.Sensors provides:
1. Metadata on the sensor types, mounting, set-up, data availability and QC. This information is organized in tables for each mooring.
2. Links to access on-line sensor data from all SOTS moorings in the 2015-16 year.
3. Description of and links to shipboard sensors records used for comparison to the moored sensors - note that Report 1. Overview provides links for standard shipboard sensors, and here we focus on additional sensor efforts with value for SOTS mooring sensor evaluations.

This metadata record represents the reports for the 2015/2016 research season.

南大洋时间序列数据集（Southern Ocean Time Series, SOTS）是澳大利亚综合海洋观测系统（Australian Integrated Marine Observing System, IMOS）的子设施，由国家合作研究基础设施战略（National Collaborative Research Infrastructure Strategy, NCRIS）资助。该设施由澳大利亚联邦科学与工业研究组织海洋与大气研究中心、澳大利亚气象局及塔斯马尼亚大学（依托南极气候与生态系统合作研究中心）以协作模式共同运营，核心观测目标为持续监测与气候、碳循环及海洋生产力密切相关的海洋属性与过程。

SOTS子设施由部署于塔斯马尼亚西南侧亚南极海域的深海锚系组成，搭载自主传感器与样品采集设备。该锚系系统每年开展一次维护作业：回收现有锚系并部署新锚系。部分传感器数据可通过卫星实现近乎实时回传，其余传感器数据与采集的样品则在年度维护航次中回收。

每年将发布三份报告：
报告1：锚定航次概览，涵盖航次信息、作业日期、观测站位、系统设计与搭载仪器
报告2：锚系与船载采集样品
报告3：锚系与船载传感器

上述报告均聚焦于元数据（metadata），即锚系、传感器、采样器及其部署、回收、处理、分析与管理的相关描述。报告中会提供航次报告辅助信息及数据在线来源的链接，同时也会阐述维护航次中开展的船载传感器与样品测量工作。

报告1（概览）：阐述锚系的部署与回收流程，提供其观测站位信息、系统设计图纸，列出每台搭载仪器及所观测的环境变量，同时总结部署与回收航次中开展的辅助测量与样品采集工作。

报告2（样品）：介绍三类主要样品及对应的组分测量内容：
1. 亚南极海域（Subantarctic Zone, SAZ）锚系采集的沉积物捕集器样品
2. 由搭载于Pulse锚系或南大洋通量站（Southern Ocean Flux Station, SOFS）的RAS水质采样器，以及搭载于SOFS锚系的TM采样器采集的水样
3. SOTS维护航次中通过其他设备采集的样品，例如CTD尼斯金采水器、走航采样系统、原位泵、连续浮游生物记录仪与网具采集的样品。需注意，并非每年都会采集所有类型的样品。

报告3（传感器）：
1. 各类传感器的元数据，包括类型、安装方式、设置参数、数据可用性与质量控制（QC）信息，该信息按每台锚系整理为表格形式
2. 2015-2016航季所有SOTS锚系的在线传感器数据访问链接
3. 用于与锚系传感器比对的船载传感器记录的说明与链接：需注意，报告1（概览）已提供标准船载传感器的链接，本部分重点聚焦于可用于SOTS锚系传感器评估的额外传感器相关工作。

本元数据记录对应2015/2016研究航季的相关报告。