IMOS - Ships of Opportunity - Expendable Bathythermographs - XBT real-time data

The IMOS Ships of Opportunity Expendable Bathythermographs Sub-Facility was formerly known as the Underway Expendable Bathythermographs (XBT), a research and data collection project working within the former IMOS Ship of Opportunity Multi-Disciplinary Underway Network Sub-Facility.XBT real-time data is available through the IMOS portal. Data is acquired by technicians who ride the ships of opportunity in order to perform high density sampling along well established transit lines. The data acquisition system used is the Quoll developed by Turo Technology. Data collected and is stored in netcdf files, with real-time data messages (JJVV bathy messages) created on the ship and sent to shore by iridium sbd. This is inserted onto the GTS by our colleagues at the Australian Bureau of Meteorology. The full resolution data is collected from the ship and returned for processing to scientists at CSIRO in Hobart. It undergoes a full scientific QC process which identifies both bad data and oceanic features such as eddies, fronts and temperature inversions. Finally, the data is distributed to the GTSPP global data acquisition centre in Washington DC where it is made freely available to all. This SOOP dataset covers waters around Australia and across to New Zealand.IMOS（Integrated Marine Observing System）机会航船投弃式温深仪（Expendable Bathythermographs, XBT）子设施前身为航渡式投弃式温深仪项目，作为一项研究与数据采集工作，隶属于原IMOS机会航船多学科航测网络子设施。XBT实时数据可通过IMOS门户网站获取。数据由搭乘机会航船的技术人员采集，沿既定运营航线开展高密度采样。本次项目所用的数据采集系统为Turo Technology公司开发的Quoll系统。采集所得数据存储于netCDF文件中，船舶端会生成实时数据报文（JJVV温深报文），并通过铱星短数据传输（Iridium Short Burst Data, Iridium SBD）将其传送至岸端。澳大利亚气象局（Australian Bureau of Meteorology）的同仁会将此类报文接入全球电信系统（Global Telecommunication System, GTS）。全分辨率原始数据会从船舶回收，送至位于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）的科研团队进行处理。该数据需经过完整的科学质量控制（Quality Control, QC）流程，不仅可识别无效数据，还可检测涡旋、海洋锋面及温度逆温等海洋学特征。最终，该数据集会被分发至位于华盛顿特区的全球温度盐度剖面计划（Global Temperature and Salinity Profile Programme, GTSPP）全球数据采集中心，向全球免费开放。本SOOP（Ships of Opportunity）数据集覆盖澳大利亚周边海域及通往新西兰的跨洋海域。