FAQ: Difference between revisions

131 bytes added ,  18:14, 22 August 2013
m
Line 79: Line 79:
* The Davis 3-second average is treated by Cumulus as 'Latest' (available via <#wlatest>)
* The Davis 3-second average is treated by Cumulus as 'Latest' (available via <#wlatest>)
* The Davis 10-minute average is the Cumulus 'Average' (available via <#wspeed>).
* The Davis 10-minute average is the Cumulus 'Average' (available via <#wspeed>).
Note that if you sample these readings at shorter (real time) intervals it is possible for Cumulus 'Latest' to be lower than Cumulus 'Average' because approximately half of the 3-second wind speeds will be higher and half of them lower than the 10-minute average.
Note that if you sample these readings at shorter (real time) intervals it is possible for Cumulus 'Latest' to be lower than Cumulus 'Average' because approximately half of the 3-second wind speeds will be higher and half of them lower than the 10-minute average.
If the Cumulus figure seems lower than the Davis figure see [[#My_Davis_station_shows_a_higher_maximum_wind_speed_than_Cumulus]].


Davis stations do not supply the 'Gust value.  The Cumulus 'Gust (available via <#wgust>) is a value calculated by Cumulus by capturing the highest of the station's 3-second readings over the previous 10 minutes.
Davis stations do not supply the 'Gust value.  The Cumulus 'Gust (available via <#wgust>) is a value calculated by Cumulus by capturing the highest of the station's 3-second readings over the previous 10 minutes.
5,838

edits