For a dataset such as ECMWF | S2S, ECMWF, Realtime, Daily averaged, the steps are labeled as “0-24”, “24-48”, etc. My understanding is that daily means are the average of 0, 6, 12, and 18 UTC steps. Therefore, my assumption would be that step “0-24” contains 0, 6, 12, and 18. However, in the dataset file retrieved from the system, the coordinate is labeled as 24 hours lead time rather than 0, which is odd since step 24 should not even be included if my understanding is correct.
Can an expert on these data clarify the exact steps that are labeled “24 hours” in the data file’s coordinates? Is it 0, 6, 12, 18? 0, 6, 12, 18, 24? 6, 12, 18, 24? Or something else?