readWindNinjaWindFields: Reads WindNinja results
In miquelcaceres/meteoland: Landscape Meteorology Tools

Description Usage Arguments Value Note Author(s) References See Also Examples

Reads the wind fields generated by 'WindNinja' (http://www.firelab.org/project/windninja) for combinations of domain-level wind speed and wind direction classes.

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readWindNinjaWindFields(filebase, resolution = "100m",
                        directionClasses = c(0, 45, 90, 135, 180, 225, 270, 315),
                        speedClasses = c(5, 15, 25), proj4string = CRS(as.character(NA)))

`filebase`	A string to indicate the template for accessing WindNinja files. Resolution, wind directions and wind speed class values are appended to this string to obtain the filename to read.
`resolution`	Resolution string.
`directionClasses`	A vector of wind speed directions (in degrees).
`speedClasses`	A vector of wind class values (in m/s).
`proj4string`	Object of class `"CRS"` with the projection string of wind field rasters.

A list with the following items:

directionClasses: The vector of wind direction classes.
speedClasses: The vector of wind speed classes.
indexTable: A numeric matrix indicating the raster index of each combination of domain-level wind directions and wind speed classes.
windSpeed: An object of class SpatialGridDataFrame containing wind speed rasters (in m/s) for each combination of domain-level wind direction and wind speed.
windDirection: An object of class SpatialGridDataFrame containing wind direction rasters (in degrees from North) for each combination of domain-level wind direction and wind speed.

WindNinja should be run with m/s as wind speed units and for all the combinations of domain-level wind speed and wind direction required.

Miquel De Cáceres Ainsa, Biodiversity and Landscape Ecology Laboratory, Centre Tecnologic Forestal de Catalunya

Forthofer, J.M., Butler, B.W., Wagenbrenner, N.S., 2014. A comparison of three approaches for simulating fine-scale surface winds in support of wildland fire management. Part I. Model formulation and comparison against measurements. Int. J. Wildl. Fire 23, 969–981.

MeteorologyInterpolationData