RV Investigator Voyage IN2018_E01 Underway UWY Data (Unprocessed)

This record describes the Underway (UWY) data collected from the Marine National Facility (MNF) RV Investigator Voyage IN2018_E01, titled: "Triaxus Sea Acceptance Testing & Calibrations Voyage." The voyage took place between June 9 and June 11, 2018 departing from Hobart (TAS) and arriving in Hobart.

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 Temprature, 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 Oceans & Atmosphere (O&A) 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.

本记录描述了从澳大利亚海洋国家设施（Marine National Facility (MNF)）‘Investigator’号调查船航次IN2018_E01采集的航次（Underway (UWY)）数据，该航次标题为"Triaxus海上验收测试与校准航次"，于2018年6月9日至6月11日开展，从塔斯马尼亚州霍巴特出发并返回霍巴特。

标准航次数据为连续采集记录，包含以下内容：
1. 导航数据（NAV）：纬度、经度、航速、航向、对地航向、陀螺仪以及多普勒计程仪（双GPS仪器）。
2. 温盐计（Thermosalinograph (TSG)）：海水盐度、流量、温度、荧光值、二氧化碳分压（pCO2）以及光学溶氧探头（Optode）/氧气数据。
3. 大气气象数据（MET）：湿度、风速与风向（叶片式与超声式传感器）、辐射计/海表温度、总辐射表/太阳辐射、光合有效辐射（Photosynthetically Active Radiation (PAR)）、气温、气压、降雨、臭氧以及痕量气体（左舷与右舷仪器）。

经质量控制后的‘Investigator’号调查船航次气象与海表温度（Sea Surface Temperature, SST）数据已提交至集成海洋观测系统-澳大利亚海洋数据网络（IMOS AODN），科研人员可通过"机遇船舶"Thredds服务器（http://thredds.aodn.org.au/thredds/catalog/IMOS/SOOP/SOOP-ASF/VLMJ_Investigator/catalog.html）公开获取。随后，美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）从该服务器下载数据，用于其原位质量监测网站（iQUAM2），并将其用于卫星海表温度验证工作。

SBE 38型海表温度数据已被澳大利亚气象局用于实时卫星海表温度验证，并被纳入实时海表温度分析产品，作为数值天气预报（Numerical Weather Prediction, NWP）模型的边界条件。

上述气象与海表温度数据已上传至全球电信系统（Global Telecommunications System, GTS），以供全球气象机构分发；同时还会单独提供给SAMOS项目（http://samos.coaps.fsu.edu/html/）用于海气通量研究。

目前（2017年），实时SBE 38型海表温度数据已被应用于以下数据产品（可通过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/）
• 美国国家环境信息中心扩展重建海表温度第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/）
• 全球海洋航次表层数据（Global Ocean Surface Underway Data (GOSUD)）项目（http://www.gosud.org/）
• 澳大利亚气象局每日与周度海表温度分析产品（http://www.bom.gov.au/marine/sst.shtml）
• 美国国家环境信息中心"雷诺兹"每日全球最优插值海表温度分析产品（NOAA NCEI "Reynolds" daily global OISST analysis）（https://www.ncdc.noaa.gov/oisst）
• 美国国家航空航天局喷气推进实验室"MUR"1公里分辨率每日全球海表温度分析产品（NASA JPL "MUR" 1 km daily global SST analysis）（https://mur.jpl.nasa.gov/）
• 英国气象局"OSTIA"每日全球海表温度分析产品（UK Met Office "OSTIA" daily global SST analysis）（http://ghrsst-pp.metoffice.com/pages/latest_analysis/ostia.html）
• 加拿大气象中心每日全球海表温度分析产品（CMC daily global SST analysis）
• 欧罗海洋"G1SST"全球每日1公里分辨率海表温度分析产品（Ourocean "G1SST" global daily 1 km SST analysis）（https://ourocean.jpl.nasa.gov/SST）

作为航次数据采集系统的一部分，本项目还生成其他数据集（如pCO2、ISAR海表温度数据），这些数据集将单独处理，并拥有独立的元数据记录。

本数据集的采集间隔为5秒。近实时数据可通过"航次数据可视化工具"链接获取。本数据集将由位于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（Commonwealth Scientific and Industrial Research Organisation, CSIRO）海洋与大气信息与数据中心（Oceans & Atmosphere (O&A) Information and Data Centre, IDC）进行处理与归档。数据集可提供5秒间隔（NetCDF格式）、10秒间隔以及5分钟间隔（ASCII格式）三种数据规格。有关本数据集的更多详细信息，请参见本航次的航次总结报告及/或数据处理报告。