CEMES全球海洋涡旋再分析数据集

GLORYS12V1产品是CMEMS全球海洋涡旋分辨率(1/12°水平分辨率，50个垂直水平)再分析，覆盖高度(1993年以后)。

它在很大程度上是基于当前的实时全球预报CMEMS系统。模型组件是近年来ECMWF ERA-Interim和ERA5再分析在地面驱动的NEMO平台。用降阶卡尔曼滤波对观测结果进行同化。沿航迹高度计资料(海平面异常)、卫星海表温度、海冰浓度和现场温度和盐度垂直剖面共同同化。此外，3D-VAR方案为温度和盐度缓慢演变的大尺度偏差提供了校正。

该产品包括从上到下的温度、盐度、洋流、海平面、混合层深度和冰参数的每日和每月平均文件。全球海洋输出文件显示在1/12°(约8公里)的标准规则网格上，并在50个标准水平上显示。

The GLORYS12V1 product is a CMEMS global ocean eddy-resolving reanalysis with a 1/12° horizontal resolution and 50 vertical levels, spanning the period from 1993 onwards.

This product is largely based on the operational global forecasting system of CMEMS. The model component is the NEMO platform forced with recent ECMWF ERA-Interim and ERA5 reanalysis datasets. Observations are assimilated using a reduced-order Kalman filter. Assimilated observations include along-track altimeter data (sea level anomalies), satellite sea surface temperature, sea ice concentration, and in-situ temperature and salinity vertical profiles. In addition, a 3D-VAR scheme provides corrections for slowly evolving large-scale biases in temperature and salinity.

This product includes daily and monthly averaged files of temperature, salinity, ocean currents, sea level, mixed layer depth, and ice parameters from the surface to the deep ocean. The global ocean output files are presented on a standard regular 1/12° grid (approximately 8 km) with 50 standard vertical levels.