The ERA-Interim reanalysis dataset for the surface (6-hourly resolution)

ECMWF has in the past produced three major reanalyses: FGGE, ERA-15 and ERA-40. Now progress is being made in producing 'ERA-Interim'. ERA-Interim has progressed beyond the end of ERA-40. After completion of the first four years it was decided to revise the configuration of the system and to rerun the initial segment. Other shorter reruns for later periods have been completed as needed for technical reasons. ERA-Interim reanalysis is expected to catch up with operations in late 2008. The reanalysis will then be continued in near-real time with the same system in order to support climate monitoring. This experiment contains assimilated surface-data with a time-step of six hours. The grid is unreduced.

Please see this link for detailed terms of use:
https://apps.ecmwf.int/datasets/licences/general/

欧洲中期天气预报中心（ECMWF）既往已成功推出了三大主要再分析数据集：FGGE、ERA-15和ERA-40。目前，该中心正在致力于生产'ERA-Interim'数据集。'ERA-Interim'的进展已超越ERA-40的终点。在完成前四年数据后，决定修订系统配置并重新运行初始段。出于技术原因，对于后续时期，已根据需要完成了其他较短的重新运行。预计'ERA-Interim'再分析将在2008年底实现与现有操作同步。随后，将利用相同的系统以近乎实时的方式继续进行再分析，以支持气候监测。该实验包含每六小时一次的资料同化地表数据。网格未经缩减。

请参阅以下链接以获取详细的使用条款：
https://apps.ecmwf.int/datasets/licences/general/