GLAD experiment CODE-style drifter trajectories (low-pass filtered, 15 minute interval records), northern Gulf of Mexico near DeSoto Canyon, July-October 2012

297 trajectories from near-surface CODE-type ocean drifters (drogued at a depth of one meter) tracked in real-time using SPOT GPS units, launched in the northern Gulf of Mexico near DeSoto Canyon in July 2012 as part of the CARTHE Grand Lagrangian Deployment (GLAD) experiment. Most of these drifters were launched as triplets (separated by roughly 100 meters at launch) in an attempt to measure multi-scale near surface dispersion. Positions are low-pass filtered (one hour cutoff period) and interpolated to uniform 15 minute intervals starting on whole hours over the period July 20 through October 22, 2012. No temperature or salinity sensors were attached to these drifters. 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 BP/The Gulf of Mexico Research Initiative.

本数据集收录297条近表层CODE型海洋漂流浮标的轨迹数据，此类浮标在1米深度处搭载锚定浮具，通过SPOT GPS设备完成实时追踪。这些浮标于2012年7月在墨西哥湾北部靠近德索托峡谷（DeSoto Canyon）的海域投放，作为“CARTHE大尺度拉格朗日部署（CARTHE Grand Lagrangian Deployment, GLAD）”实验的组成部分。多数浮标以三枚为一组进行投放，投放时组内浮标间距约100米，以此实现多尺度近表层海水扩散过程的观测。浮标位置数据经过低通滤波处理（截止周期为1小时），并被插值为统一的15分钟时间间隔，采样时段覆盖2012年7月20日至10月22日，且所有采样时刻均对齐整点。该批浮标未搭载温度或盐度传感器。本数据集由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, 简称CARTHE）构建。本研究依托英国石油公司（BP）与墨西哥湾研究倡议（The Gulf of Mexico Research Initiative）提供的资助得以完成。