关于ERA-Interim数据资料step=0的数据疑惑

山山山山

以前在使用ERA-Interim数据时，对step=0的时候，总有疑惑，有人说step=0时是再分析，等于3,6,9,12是预测。但是我想使用的蒸发数据就没有再分析，只有预测。经过浏览查询，查到一些数据说明，终于死心，确实没有蒸发再分析数据。
数据说明：
The ERA-Interim data server surface archive has a mixture of analysis fields, forecast fields and fields available from both the analysis and forecast. The other daily archives have only analysis data.
If step 0 is chosen, then only analysed fields, which are produced for 0000, 0600, 1200 and 1800 UTC, are available.
If step 3, 6, 9 or 12 is selected then only forecast fields which are produced from forecasts beginning at 0000 and 1200 UTC, are available.
可以自己百度翻译

山山山山

REA5有蒸发~~