Lagrangian Submesoscale Experiment (LASER) surface drifters, interpolated to 15-minute intervals

Over 1000 near-surface biodegradable drifters were deployed in the northern Gulf of Mexico in January-February 2016 as part of the CARTHE Lagrangian Submesoscale Experiment (LASER). The drifters were drogued at 0.5 m depth and reported their positions in real-time using SPOT GPS units nominally every 5 minutes for about 3 months. No temperature or salinity sensors were attached to these drifters. The data was quality-controlled by separating trajectories at drogue-loss. Positions were then low-pass filtered and interpolated to uniform 15 minute intervals. Data covers the period 21 January through 30 April 2016. This dataset was created by the Consortium for Advanced Research on Transport of Hydrocarbon in the Environment (CARTHE). This research was made possible by a grant from The Gulf of Mexico Research Initiative.

2016年1月至2月，作为环境碳氢化合物输运高级研究联盟（Consortium for Advanced Research on Transport of Hydrocarbon in the Environment, CARTHE）拉格朗日次中尺度实验（Lagrangian Submesoscale Experiment, LASER）的组成部分，研究人员在墨西哥湾北部部署了超过1000台近海面可生物降解漂流浮标。该批次浮标在0.5米水深处安装了曳航稳定装置，标称每5分钟通过SPOT GPS设备实时传回位置信息，持续观测时长约3个月，且未搭载温度或盐度传感器。
数据质控环节通过识别曳航装置脱落事件拆分对应轨迹，随后对位置数据进行低通滤波，并将其插值为统一的15分钟时间间隔序列。数据集的时间覆盖范围为2016年1月21日至4月30日。本数据集由环境碳氢化合物输运高级研究联盟（CARTHE）构建，本研究依托墨西哥湾研究计划（Gulf of Mexico Research Initiative）的资助项目完成。