Surface velocity field reconstruction during the Grand Lagrangian Deployment (GLAD) experiment through Lagrangian Variational Analysis (LAVA) in the shallow northeastern Gulf of Mexico, September 2012

The surface velocity field in the northeastern Gulf of Mexico is reconstructed from drifter trajectories collected as part of the Grand Lagrangian Deployment (GLAD) experiment in September 2012. The Lagrangian Variational Analysis (LAVA) approach is used; see Taillandier et al., 2006: A variational approach for the reconstruction of regional scale Eulerian velocity fields from Lagrangian data, Ocean Model., 13, 1-24. This dataset is restricted to shallow waters (north of 27N); a companion dataset (UDI: R1.x134.115:0003) focuses on deeper waters (south of 27N).

本数据集基于2012年9月大拉格朗日部署（Grand Lagrangian Deployment, GLAD）实验采集的漂流浮标轨迹，重构得到墨西哥湾东北部海域的表层流速场。本研究采用拉格朗日变分分析（Lagrangian Variational Analysis, LAVA）方法，相关方法细节可参见Taillandier等（2006）发表于《海洋模式》（*Ocean Model.*）第13卷第1至24页的论文：《基于拉格朗日数据重构区域尺度欧拉流速场（Eulerian velocity fields）的变分方法》。本数据集仅覆盖北纬27°以北的浅水区；配套数据集（UDI: R1.x134.115:0003）则聚焦于北纬27°以南的深水区。