South China Sea Mesoscale Cyclonic Eddy Trajectory Dataset (1993-2022)

This dataset comprises multimission altimeter products, specifically multimission altimetry-derived cyclonic eddy trajectories in the South China Sea region (109°E-121°E, 3°N-23°N). These products are released by the Archiving, Validation and Interpretation of Satellite Oceanographic data (AVISO) with the support of the Copernicus Marine Environment Monitoring Service (CMEMS). The eddy trajectories are derived from the all satellites constellation maps distributed by CMEMS. The dataset is intended for the study of ocean mesoscale eddies. It provides cyclonic eddies detected from multimission altimetry datasets, including information such as their location, time, amplitude, average speed, effective radius, velocity, and angle, spanning the altimetry period from 1993 to 2022. The spatial resolution of the data is 0.25° × 0.25°, with a temporal resolution of one day, stored in the CSV file format. The trajectory data contain 3,976 trajectories with 141,938 sampling points.

本数据集涵盖多任务高度计产品，具体为南海区域（109°E-121°E，3°N-23°N）内由多任务测高数据反演得到的气旋式涡旋轨迹。此类产品由卫星海洋学数据存档、验证与解释中心（Archiving, Validation and Interpretation of Satellite Oceanographic data, AVISO）发布，得到了哥白尼海洋环境监测服务（Copernicus Marine Environment Monitoring Service, CMEMS）的支持。该涡旋轨迹数据源自CMEMS分发的多卫星星座组网测高图集。本数据集面向海洋中尺度涡旋研究，提供了从多任务测高数据集中检测得到的气旋式涡旋数据，涵盖涡旋的位置、时间、振幅、平均流速、有效半径、速度及角度等信息，时间跨度覆盖1993年至2022年的测高观测时段。本数据集空间分辨率为0.25°×0.25°，时间分辨率为1日，以CSV文件格式存储。该涡旋轨迹数据集共包含3976条轨迹，总计141938个采样点。