Time in the ECDE

[charliepascoe]

Thinking about how we make a distinction between the time period of the dataset (e.g. 30 year climate periods) and the time period of the variation of the variable relative to the background state.

The documentation for the snow indicators uses the term "time horizon" for the longer term time periods.
Time Horizon:
Recent past (1986-2005)
Near Future (2021-2040)
Mid Century (2041 – 2060)
End of Century (2081- 2100)

If we adopt the same wording we can then refer to the time period of the monthly/season/annual variable as a "time period".
This seems to me to be a far more intuitive description of time than "anomaly period" or "change period".

This is related to issue #42