Physical trajectory profile data from glider ru29 deployed by Rutgers, The State University of New Jersey; Center for Ocean Observing Leadership (RU COOL) in the Caribbean Sea from 2019-10-10 to 2019-10-31 (NCEI Accession 0238815)

The Challenger Glider Mission is a re-creation of the first global scientific ocean survey conducted by the HMS Challenger from 1872-1876. The goals of the mission are to establish a collaborative international network of autonomous underwater glider ports, to assess global ocean model predictive skill while contributing real-time profile data for assimilation in ocean forecast models by operational centers worldwide, and to crowd source student-based ocean research and discovery. Glider is providing temperature, conductivity, salinity, density and current profile observations. The current profiles are logged via external pd0 files and are not available in this real-time dataset. RU29 is flying a transect across the Anegada Passage and box pattern throughout the surrounding island regions to monitor heat transport between the Caribbean Sea and the Tropical North Atlantic. This region includes the US Virgin Islands, British Virgin Islands, and Anguilla, areas commonly impacted by tropical cyclones.This deployment is the continuation of the prior USVI ru29 deployment.

The National Centers for Environmental Information (NCEI) received the data in this archival package from the Integrated Ocean Observing System's National Glider Data Assembly Center (IOOS NGDAC). The IOOS NGDAC received the data in one or more netCDF files comprising an entire glider deployment. The data are measurements of physical oceanographic properties such as temperature, salinity, conductivity, and density. The IOOS NGDAC checked the files for compliance to their netCDF file convention, aggregated the files into a single netCDF file, and then submitted the file to NCEI for long-term preservation.

挑战者滑翔机任务（Challenger Glider Mission）是对1872年至1876年间英国皇家海军挑战者号（HMS Challenger）开展的首次全球海洋科学调查的复刻项目。该任务的核心目标包括：搭建协同共享的国际自主水下滑翔机站点网络；评估全球海洋数值模式的预报性能，同时为全球各业务海洋预报中心的模式同化提供实时剖面观测数据；发起以学生为主体的海洋研究与发现众包活动。本次任务搭载的滑翔机将采集温度、电导率、盐度、密度及海流剖面观测数据，其中海流剖面数据通过外部PD0文件记录，未包含在本实时数据集中。RU29滑翔机将沿阿内加达海峡（Anegada Passage）布设断面观测航线，并在周边岛屿区域开展箱型巡测，以监测加勒比海与热带北大西洋之间的热输送过程。该区域涵盖美属维尔京群岛、英属维尔京群岛及安圭拉，上述区域常受热带气旋影响。本次部署为此前美属维尔京群岛RU29部署任务的延续。

美国国家环境信息中心（National Centers for Environmental Information, NCEI）从综合海洋观测系统国家滑翔机数据汇编中心（Integrated Ocean Observing System's National Glider Data Assembly Center, IOOS NGDAC）获取了本归档数据包中的观测数据。IOOS NGDAC通过包含完整滑翔机部署任务的一个或多个网络通用数据格式（netCDF）文件接收相关数据，所获取的数据为温度、盐度、电导率、密度等物理海洋学参数的实测值。IOOS NGDAC已核查所有文件是否符合其netCDF文件规范，将多个文件整合为单个netCDF文件后，提交至NCEI进行长期存档保存。