Why is the first column time negative and what does it mean,Will setting the first column time of EFDC at will affect the final result
The first column is the model time perid. If the time of the wind sequence does not match the time of the model. The model can not run successfully.
我问的是第一列为什么是负数。我也知道不匹配不成功。废话
第一列是你自己准备的数据，你要问别人为什么是负数？难道第一列是EEMS生成的？
第一列是你自己准备的数据，你要问别人为什么是负数？难道第一列是EEMS生成的？
I assume that your wind time series is generated by EE (Exported from EE to an external file). The time column in the file is Julian time, which can be negative or positive depending on the base date of the model. If you have a wind data time series, the time is in the calendar, and then you import it into EE, EE will convert it into Julian by subtracting the base date that was set to the model.