NCEP Global Data Assimilation System GDAS

Data is from NCEP initialized analysis (2x/day). It consists of most variables interpolated to pressure surfaces from model (sigma) surfaces.本数据集的数据源自美国国家环境预报中心（National Centers for Environmental Prediction, NCEP）初始化分析场，时间分辨率为每日两次。数据集包含绝大多数从模式（sigma，西格马）坐标系垂直面插值至气压垂直面的变量。