Deployment of Argo Float APEX 6901926 May 2017

The Argo Float 6901926 was deployed on 20/05/2017 at 48.9012 N, -13.576 W. The most current measurement was taken on 09/01/2024. The autonomous floats Drift on the ocean currents for 10 days at 1 000 m before diving to its profiling depth of 2 000 m, taking ocean property measurements of temperature and salinity on its ascent to the surface. These two essential climate variables describe the oceans’ physical and thermodynamic state. Once surfaced the data are transmitted via satellite. Marine Institute floats used ARGOS communications to 2017, and moved to Iridium communications in 2018 allowing for more information transmitted at faster rates with a two-way communication to the Float. The Iridium communication means the Float surface times are between 15-30 minutes instead of hours using ARGOS communication. The data are accessible online at Erddap (https://erddap.marine.ie/erddap/tabledap/argoFloats.html) and https://argo.ucsd.edu/data/. The Marine Research Infrastructures team operate and manage Ireland’s contribution to Argo – a global array of autonomous floats or profilers, deployed across the world’s oceans, reporting subsurface ocean water properties to a wide range of users via satellite transmission links to data Centers. The Argo array is an indispensable component of the Global Ocean Observing System (GOOS) required to understand and monitor the role of the ocean in the Earth’s climate system, in particular the heat and water balance. The International Argo programme currently has a network of approximately 4,000 Argo floats taking measurements in the world’s oceans and is integrated into the Copernicus programme and the Global Earth Observation System of Systems (GEOSS). The Euro-Argo European Research Infrastructure Consortium (ERIC), which Ireland is a member of, find to sustain 25 % of Argo International’s global fleet autonomous floats.编号为6901926的Argo浮标（Argo Float）于2017年5月20日在北纬48.9012°、西经13.576°的位置完成布放。最新一次观测数据采集于2024年1月9日。该自主式浮标会随海流在1000米水层漂移10天，随后下潜至2000米的剖面观测深度，并在上升返回海面的过程中采集海水温度与盐度两项核心海洋属性参数。这两项关键气候变量可用于表征海洋的物理与热力学状态。浮标浮出海面后，会通过卫星链路传输采集到的观测数据。爱尔兰海洋研究所的浮标在2017年前采用ARGOS通信系统，2018年起切换至铱星（Iridium）通信系统，该系统可实现更高传输速率下的更多数据回传，并支持与浮标的双向通信。相较于ARGOS通信需耗时数小时的海面数据传输流程，铱星通信可将浮标海面作业时长缩短至15至30分钟。相关数据可通过以下在线平台获取：Erddap（https://erddap.marine.ie/erddap/tabledap/argoFloats.html）以及https://argo.ucsd.edu/data/。海洋研究基础设施团队负责运营与管理爱尔兰在Argo计划中的贡献份额——Argo计划是一套由全球布放的自主式浮标或剖面仪组成的观测阵列，通过卫星链路将水下海水属性数据传输至全球数据中心，供各类用户使用。 Argo观测阵列是全球海洋观测系统（Global Ocean Observing System, GOOS）不可或缺的组成部分，而该系统是认知与监测海洋在地球气候系统中所扮演角色，尤其是其热量与水平衡过程的必要支撑体系。国际Argo计划目前在全球海洋布设了约4000套Argo浮标组成的观测网络，并已融入哥白尼计划（Copernicus Programme）以及全球对地观测系统之系统（Global Earth Observation System of Systems, GEOSS）。作为爱尔兰成员国之一的欧洲Argo研究基础设施联合体（Euro-Argo European Research Infrastructure Consortium, ERIC），负责维持Argo国际全球浮标阵列中25%的自主式浮标的运行。