Parameter TP - accumulated precip - in 24hr step forecast data

Datasets and Usage
1

Hi ECMWF community,

We receive 15-day 24hr step forecast data, from the 00:00UTC base time ENS forecast.

For example, the data supplied on Jan 1st covers forecasts from 00:00 Jan 1st → Jan 15th.

For accumulated precipitation, the first value is always 0, since there is no preceding accumulation.

We are unclear, however, as to what time period the second value refers to - e.g. 34mm or whatever:

In our example above, is it:

a. accumulated precip for 00:00->23:59 Jan 1st
b. accumulated precip for 00:00->23:59 Jan 2nd?

Would appreciate a clear confirmation. Thanks in advance.

CW

2

This depends on the exact dataset you use and the exact variable requested. COuld you share this?

Based on this & the info provided on each parameters definition, we can find the answer together.