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Cumulus.ini (Cumulus 1): Difference between revisions
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Multiple corrections to several explanation typing errors that were introduced long, long ago
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*0 = metres Above Sea Level | *0 = metres Above Sea Level | ||
*1 = feet ASL | *1 = feet ASL | ||
|- | |||
|CalculatedDP=0 | |||
|Selected on same screen as other parameters. Simple tick or not, available from version 1.1 onwards, not implemented correctly for Fine Offset until 1.8.5: | |||
* Tick (value shown as 1 in Cumulus.ini) then Cumulus will '''calculate dew point from temperature and humidity''' | |||
* Don't tick (value shown as 0 in Cumulus.ini) action depends on '''Calibration settings''' | |||
** If Cumulus has non-default multiplier and/or offset settings for temperature or humidity, from 1.8.3, Cumulus will calculate dew point. This avoids the restriction in the Oregon Scientific stations where the dew point can never be below freezing point. | |||
** If station provides dew point, then from 1.8.3 that will be used provided no multiplier/offsets have been specified for temperature or humidity | |||
** If station does not provide dew point, then Cumulus will calculate it anyway | |||
** For LaCrosse stations from build 1083, calculation reports normal temperature if humidity reported by station is zero. | |||
** From version 1.8.8 added ability to calulate dew point when humidity is 100% | |||
Note that Cumulus also calculates wet bulb temperature, irrespective of this setting; extremes for dew point were added in version 1.9.1 | |||
|- | |||
|CalculatedWC=0 | |||
|Selected on same screen as other parameters. Available only from version 1.8.3 beta builds. Simple tick or not: | |||
* Tick (value shown as 1 in Cumulus.ini) then Cumulus will '''calculate wind chill from temperature and wind speed''' | |||
** Note that there is a maximum temperature, and minimum wind speed, for Cumulus to make the calculation, see [[Wind_chill]] page | |||
* Don't tick (value shown as 0 in Cumulus.ini), from later builds in 1.8.3, action depends on '''Calibration settings''' | |||
** If Cumulus has non-default multiplier and/or offset settings for temperature or wind speed, Cumulus will calculate wind chill | |||
** If station provides wind chill, then that will be used provided no multiplier/offsets have been specified for temperature or wind speed | |||
Note that some stations (Fine Offset, for example), do not make a wind chill value available to Cumulus. For these, Cumulus always calculates it. | |||
|- | |||
| PeakGustMinutes=10 | |||
|Selected on same screen as other parameters. | |||
Select the number of minutes, 'N', over which wind speeds are averaged, default is 10, see [[FAQ#Cumulus_is_showing_a_different_wind_speed_compared_to_my_console]], next two parameters determine how this parameter is used. | |||
|- | |- | ||
|Wind10MinAverage=0 | |Wind10MinAverage=0 | ||
|Selected on same screen as other parameters. | |Selected on same screen as other parameters. | ||
*1 = Enabled, Cumulus will calculate and display a N-minute average wind speed where N is defined by the previous parameter if present, otherwise defaults to 10 | The average wind speed supplied by a Davis station is calculated by considering all wind speed measurements over a ten minute period, the international standard duration used to calculate average wind speeds. Other weather station types output an average over a shorter period (e.g. Oregon Scientific and Fine Offset stations). | ||
*0 = Disabled (default), Cumulus will display the value supplied by the station, see [[FAQ#Cumulus_is_showing_a_different_wind_speed_compared_to_my_console]]. | |||
*1 = Enabled, Cumulus will calculate and display a N-minute average wind speed where N is defined by the previous parameter if present, otherwise defaults to 10 | |||
|- | |- | ||
|UseSpeedForAvgCalc=0 | |UseSpeedForAvgCalc=0 | ||
|Selected on same screen as other parameters. | |Selected on same screen as other parameters. | ||
Determines how Cumulus does '''the average speed and wind run calculations''' (the preceding 'Wind10MinAverage' option must be enabled for this parameter to have any effect): | |||
*0 = Disabled (default), Cumulus will display the average wind speed value supplied by the station, see [[FAQ#Cumulus_is_showing_a_different_wind_speed_compared_to_my_console]]. | *0 = Disabled (default), Cumulus will display the average wind speed value supplied by the station, see [[FAQ#Cumulus_is_showing_a_different_wind_speed_compared_to_my_console]]. | ||
*1 = Enabled, Cumulus will use the longer-term | *1 = Enabled, Cumulus will use the longer-term (calculated as specified in last parameter) values for this calculation. | ||
Note that there isn't really any point enabling this option for Davis stations, as their 'longer-term speed' is a 10 minute average anyway; | Note that enabling this option makes a Fine Offset station give much better agreement with a Davis station; there isn't really any point enabling this option for Davis stations, as their 'longer-term speed' is a 10 minute average anyway; it is not useful for La Crosse stations, as they only supply one wind speed anyway. | ||
|- | |- | ||
|RoundWindSpeed=0 | |RoundWindSpeed=0 | ||
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*0 = Disabled, Cumulus displays the current bearing read from the station (i.e. the last direction the wind was blowing from before it became calm). Note that the average wind bearing will always display zero bearing if there has been no wind for the last N minutes (where N is defined by previous parameter if present but defaults to 10), as the average bearing takes wind speed into account. | *0 = Disabled, Cumulus displays the current bearing read from the station (i.e. the last direction the wind was blowing from before it became calm). Note that the average wind bearing will always display zero bearing if there has been no wind for the last N minutes (where N is defined by previous parameter if present but defaults to 10), as the average bearing takes wind speed into account. | ||
*1 = Enabled, Cumulus display a bearing of zero (and '---' for the compass point) when the wind is calm (note when not calm, bearing is 360 for true North) | *1 = Enabled, Cumulus display a bearing of zero (and '---' for the compass point) when the wind is calm (note when not calm, bearing is 360 for true North) | ||
|- | |- | ||
|RolloverHour=0 | |RolloverHour=0 | ||