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Rain measurement: Difference between revisions
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= Precipitation measurement and Cumulus =
Cumulus processes rainfall in one of two [[cumulus.ini| units]] (millimetres and inches). Most processing by Cumulus is based on the total rainfall count output by a weather station, see [[FAQ#My_station_invented_some_rain_that_didn.27t_really_occur.2C_and_I_want_to_set_it_to_zero_.28or_some_other_figure.29 | FAQ]] for more. The rainfall observations output by different weather stations varies, see [[Monthly_log_files]] for the parameters that Cumulus tracks. Cumulus can also read rainfall from a separate RG11 optical gauge.▼
Cumulus processes rainfall in one of two [[cumulus.ini| units]] (millimetres and inches).
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The rainfall observations output by different weather stations varies, see [[Standard_log_files]] for the parameters that Cumulus tracks. Cumulus can also read rainfall from a separate RG11 optical gauge.
== Rain day ==
The threshold value which the daily rainfall has to equal or exceed for the day to be considered a 'rain day' is set in [[Cumulus.ini#Section:_Station | RainDayThreshold]] and has a default value of ''-1'' that means 0.2mm or 0.01in. Alternative thresholds can be used by specifying a number in the units your configuration uses.
== Cumulus View Menu ==
Cumulus 1 provides a number of ways to view derived rainfall.
=== Highs and Lows ===
On the Cumulus '''View''' ''Highs and lows'' screens you can see those of the following appropriate to the chosen period:
* Highest Hourly/Daily/Monthly Rainfall
=== ''This month/period/year'' screens ===
A number of values are shown for rainfall, these are calculated by summing field 14 (total rain today) from relevant rows in [[dayfile.txt]] (so will exclude the current meteorological day):
# Total rainfall
==[[Webtags]] report ==
* For current, last 24 hours, yesterday (<#rfallY>), and this month;
**totals (<#rfall>, <#r24hour>, <#rmonth> all include rainfall so far today)
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