windSpeedErainterim: Computes total wind speed for raster based time series.
In henningte/herdersWDA: Functions for Raster Based Weather Time Series Analysis

Description Usage Arguments Value Examples

windSpeedErainterim calculates the total wind speed [m/s] of raster based time series (RasterBrick or RasterStack object, see: Raster-class) derived from netcdf raster files as downloaded from ERA interim. This is done by computing the length of the total vector from the north-south and east-west components as suggested by https://confluence.ecmwf.int/pages/viewpage.action?pageId=77229867.

1	windSpeedErainterim(u10, v10, cores = 10, timedate, clcall = NULL)

`u10`	A `RasterBrick` or `RasterStack` object with values for the wind speed at 10 m height in east direction (negative signs indicate a wind direction to the west). `u10` is supposed to have the same temporal extent and resolution as `v10`.
`v10`	A `RasterBrick` or `RasterStack` object with values for the wind speed at 10 m height in north direction (negative signs indicate a wind direction to the south). `v10` is supposed to have the same temporal extent and resolution as `u10`.
`cores`	The number of cores to be used in parallel computing.
`timedate`	A `POSIXct` vector containing the time information for each band/layer of `variable`.
`clcall`	A function passed to `clusterCall`.

A list with the first element representing the relative air humidity [ time series with as a RasterBrick with the same temporal resultution as dt and t and the second element a POSIXct vector containing the time information.