dhourmean
Added by Lara Leko 6 months ago
dhourmean is a function that computes a multi-day hourly mean. so it computes a mean for eg. 01:00, 02:00 and so on, when we have hourly data over several days. I was wondering how it works if my dataset is subhourly, for example 30-min. Will it take two values in one day or only the closest one to 01:00. The documentation says "The date information in an output field is the date of the last contributing input field." If after executing it, my date and time show a value at 01:30. Does that mean in took both half-hours within an hour into account?
Replies (2)
RE: dhourmean - Added by Ralf Mueller 5 months ago
I think that all timesteps that are labeled with something that belongs to hour N is taken into account for the mean value of that hour. the timestep used for this mean values usually is the middle of the interval (hence 01:30). but you can change that with environment variables
cheers
ralf
RE: dhourmean - Added by Uwe Schulzweida 5 months ago
dminutemean is the right operator for this task.