diff --git a/site/Cell2FireW/data_preparation.md b/site/Cell2FireW/data_preparation.md index 6971eaf..6e58ca3 100644 --- a/site/Cell2FireW/data_preparation.md +++ b/site/Cell2FireW/data_preparation.md @@ -67,7 +67,7 @@ Scott&Burgan * FireScenario was deprecated by "Live & Dead Fuel Moisture Content Scenario [1=dry..4=moist]" * There's no need to be consistent with the timestamps, but isoformat `YYYY-MM-DDTHH:MM:SS` should be followed * WIP: unifying weather formats, relying on column names instead of order to read them -* Cell2Fire wind angle is reversed from normal metereological data, check [wind direction](weather) for more details. +* Cell2Fire wind angle follows metereological convention, check [wind direction](weather) for more details. back to top {: style="text-align: right;"} diff --git a/site/Cell2FireW/weather.md b/site/Cell2FireW/weather.md index 54a0599..dcea352 100644 --- a/site/Cell2FireW/weather.md +++ b/site/Cell2FireW/weather.md @@ -8,30 +8,32 @@ has_toc: false --- # Wind direction - -Wind direction is generally indicated by the direction from which the wind originates. For example, a north or northerly wind blows from the north to the south. - -## Wind direction in meteorology - -It is measured in degrees, from 0º to 360º, rotating clockwise in the horizontal plane. - -* Values close to 1º and 360º indicate north wind -* 90º indicate east wind -* 180º south wind -* 270º west wind. - -## Wind direction Cell2Fire - -In Cell2Fire, the wind is also measured in degrees from 0° to 360°, rotating clockwise in the horizontal plane. - -* Values close to 0° or 360° indicate south wind -* 90° indicate west wind -* 180° north wind -* 270° east wind - - -| Metereological | Cell2FireW | -| --- | --- | -| ![meteo](img/meteo_angulos.png)| ![angulos](img/Cell2Fire_angulos.png) | - +How wind direction should be indicated in weather files depends of which version of the simulator or QGIS plugin you use. + +## Wind direction in Cell2FireW version 1.0.0 or greater + +Following the meteorological standard, wind direction is indicated by the direction from which the wind originates. For example, a north or northerly wind blows from the north to the south. The wind direction is measured in degrees, from 0º to 360º, rotating clockwise in the horizontal plane. + +
+ + + + + +
meteo
Values close to 0º and 360º indicate north wind
90º indicate east wind
180º south wind
270º west wind.
+
+ +## Wind direction in Cell2FireW versions prior to 1.0.0 + +In previous versions of Cell2FireW, the wind direction was dictated by the direction towards which the wind is blowing. +It is also measured in degrees from 0° to 360°, rotating clockwise in the horizontal plane, but 0° means "South". + +
+ + + + + +
meteo
Values close to 0º and 360º indicate south wind
90º indicate west wind
180º north wind
270º east wind.
+