RV Investigator Voyage IN2020_V06 Underway UWY Data (Unprocessed)

This record describes the Underway (UWY) data collected from the Marine National Facility (MNF) RV Investigator Voyage IN2020_V06, titled "Probing the Australian-Pacific Plate Boundary: Macquarie Ridge in 3-D." The voyage took place between October 8 and November 1, 2020 departing from Hobart (TAS) and arriving in Hobart (TAS).

Standard Underway data is continuously recorded, consisting of:

(1) Navigation data (NAV): Latitude, Longitude, Speed, Heading, Course Over Ground, Gyros, and Doppler Log (dual GPS instrument).

(2) Thermosalinograph (TSG): Water Salinity, Flow-Rate, Temperature, Fluorescence, pCO2 and Optode/Oxygen.

(3) Atmospheric (MET): Humidity, Wind Speed and Direction (vane and ultrasonic), Radiometer/Sea Surface Temperature, Pyranometer/Solar Radiation, Photosynthetically Active Radiation (PAR), Air Temperature, Air Pressure, Rain, Ozone and Trace Gases (port and starboard instruments).

The quality-controlled RV Investigator underway meteorological and SST data are supplied to the IMOS AODN where they are publicly available at the "Ships of Opportunity" Thredds server (http://thredds.aodn.org.au/thredds/catalog/IMOS/SOOP/SOOP-ASF/VLMJ_Investigator/catalog.html) for research. From there, they are downloaded by NOAA for their In Situ Quality Monitoring web site (iQUAM2) and made available for satellite SST validation.

The SBE 38 SST data are used within the Australian Bureau of Meteorology for real-time satellite SST validation and ingested into real-time SST analyses which are then used as the boundary condition for Numerical Weather Prediction models.

The meteorological and SST data are uploaded onto the Global Telecommunications System (GTS) for global dissemination to Meteorological Agencies, and separately supplied to the SAMOS (http://samos.coaps.fsu.edu/html/) Project for air-sea flux research.

The real-time SBE 38 SST data are currently (2017) used in the following data products (accessed via the GTS):
• International Comprehensive Ocean-Atmosphere Data Set (ICOADS R3.0) (http://icoads.noaa.gov/)
• NOAA NCEI Extended Reconstructed Sea Surface Temperature version 4 (ERSST.v4) (https://www.ncdc.noaa.gov/data-access/marineocean-data/extended-reconstructed-sea-surface-temperature-ersst-v4)
• Hadley Centre SST Data Set (HadSST3) (http://www.metoffice.gov.uk/hadobs/hadsst3/)
• Global Ocean Surface Underway Data (GOSUD) Project (http://www.gosud.org/)
• Bureau of Meteorology daily and weekly SST analyses (http://www.bom.gov.au/marine/sst.shtml)
• NOAA NCEI “Reynolds” daily global OISST analysis (https://www.ncdc.noaa.gov/oisst)
• NASA JPL “MUR” 1 km daily global SST analysis (https://mur.jpl.nasa.gov/)
• UK Met Office “OSTIA” daily global SST analysis (http://ghrsst-pp.metoffice.com/pages/latest_analysis/ostia.html)
• CMC daily global SST analysis
• Ourocean “G1SST” global daily 1 km SST analysis (https://ourocean.jpl.nasa.gov/SST)

As part of the underway data gathering system, other datasets are produced (e.g., pCO2, ISAR SST) which are processed separately and have their own metadata records.

Data are recorded at 5 second intervals. Near real-time data are available via the link "Visualisation tool for Underway Data." This dataset will be processed and archived within the CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC) in Hobart (TAS). Data are available at time intervals of 5 sec (NetCDF format), 10 sec and 5 min (ASCII format). Additional information regarding this dataset is contained in the Voyage Summary and/or the Data Processing Report for this voyage.

本记录描述了海洋国家设施（Marine National Facility, MNF）“调查者”号科考船（RV Investigator）IN2020_V06航次的走航（Underway, UWY）数据，该航次标题为“探测澳大拉西亚-太平洋板块边界：三维视角下的麦夸里海岭”。航次于2020年10月8日至11月1日进行，从塔斯马尼亚州霍巴特出发，最终返回霍巴特。

标准走航数据为连续记录，包含以下内容：

(1) 导航数据（Navigation data, NAV）：纬度、经度、航速、航向、对地航向、陀螺仪数据及多普勒计程仪（双GPS仪器）数据；

(2) 温盐仪（Thermosalinograph, TSG）数据：海水盐度、流速、温度、荧光值、二氧化碳分压（pCO₂）及光学溶解氧（Optode/Oxygen）数据；

(3) 大气数据（Atmospheric, MET）：湿度、风速与风向（风向标及超声波）、辐射计/海表温度、日射强度计/太阳辐射、光合有效辐射（Photosynthetically Active Radiation, PAR）、气温、气压、降雨量、臭氧及痕量气体（左舷与右舷仪器）数据。

经过质量控制的“调查者”号科考船走航气象与海表温度（SST）数据已提供给澳大利亚海洋观测系统海洋数据网络（IMOS AODN），可通过“机会船”Thredds服务器（http://thredds.aodn.org.au/thredds/catalog/IMOS/SOOP/SOOP-ASF/VLMJ_Investigator/catalog.html）公开获取，用于科研。美国国家海洋和大气管理局（NOAA）从该服务器下载数据，用于其现场质量监测网站（iQUAM2），并为卫星海表温度验证提供支持。

SBE38型海表温度数据被澳大利亚气象局用于实时卫星海表温度验证，并纳入实时海表温度分析，作为数值天气预报（Numerical Weather Prediction）模型的边界条件。

气象与海表温度数据已上传至全球电信系统（Global Telecommunications System, GTS），向全球气象机构分发；同时单独提供给船舶大气海洋测量（SAMOS）项目（http://samos.coaps.fsu.edu/html/），用于海气通量研究。

实时SBE38型海表温度数据目前（2017年）用于以下数据产品（通过GTS获取）：
• 国际综合海洋大气数据集（International Comprehensive Ocean-Atmosphere Data Set, ICOADS R3.0）（http://icoads.noaa.gov/）
• NOAA国家环境信息中心扩展重建海表温度4版（NOAA NCEI Extended Reconstructed Sea Surface Temperature version 4, ERSST.v4）（https://www.ncdc.noaa.gov/data-access/marineocean-data/extended-reconstructed-sea-surface-temperature-ersst-v4）
• 哈德利中心海表温度数据集（Hadley Centre SST Data Set, HadSST3）（http://www.metoffice.gov.uk/hadobs/hadsst3/）
• 全球海洋表面走航数据集（Global Ocean Surface Underway Data, GOSUD）项目（http://www.gosud.org/）
• 澳大利亚气象局日度与周度海表温度分析（http://www.bom.gov.au/marine/sst.shtml）
• NOAA国家环境信息中心“雷诺兹”全球日度最优插值海表温度分析（NOAA NCEI "Reynolds" daily global OISST analysis）（https://www.ncdc.noaa.gov/oisst）
• NASA喷气推进实验室“MUR”1公里全球日度海表温度分析（NASA JPL "MUR" 1 km daily global SST analysis）（https://mur.jpl.nasa.gov/）
• 英国气象局“OSTIA”全球日度海表温度分析（UK Met Office "OSTIA" daily global SST analysis）（http://ghrsst-pp.metoffice.com/pages/latest_analysis/ostia.html）
• 加拿大环境部全球日度海表温度分析（CMC daily global SST analysis）
• Ourocean“G1SST”全球日度1公里海表温度分析（Ourocean "G1SST" global daily 1 km SST analysis）（https://ourocean.jpl.nasa.gov/SST）

作为走航数据采集系统的一部分，还生成了其他数据集（如二氧化碳分压、ISAR海表温度），这些数据集单独处理，拥有独立的元数据记录。

数据记录间隔为5秒。近实时数据可通过“走航数据可视化工具”（Visualisation tool for Underway Data）链接获取。本数据集将在塔斯马尼亚州霍巴特的澳大利亚联邦科学与工业研究组织（CSIRO）国家收藏与海洋基础设施（NCMI）信息数据中心（IDC）进行处理和存档。数据以5秒（NetCDF格式）、10秒及5分钟（ASCII格式）的时间间隔提供。关于本数据集的附加信息包含在本次航次的航行总结和/或数据处理报告中。