For observations, it denotes the period, in minutes, starting from time. It can be used to specify periods of time over different dates. (i.e., time=2100, range=360, denotes observations from 21:00 to 03:00 next day).


For fields, it is mostly used in ocean data. For a time series product, range defines the values in time over which the time series extends. For a time averaged product, range is the length of the period over which the averaging has been made. Range is generally used with step, which defines the end point of the relevant time interval. For example, for type forecast, step gives the number of hours at the end of the time series, and range gives the number of hours between the beginning and the end of the time-series.


Not supported.