请问在ecmwf下载气象数据时，Select step是什么意思？

Charlotte.chen · 发表于 2017-12-14 21:39:55

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Select step：请问在ecmwf下载气象数据时，Select step是什么意思？

大南瓜 · 发表于 2017-12-15 09:17:19

这个是数据下载页面的说明

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.

Charlotte.chen · 发表于 2017-12-15 11:09:58

thank you

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