add_wind_radii: Add Willoughby inputs and parameters

Description Usage Arguments Value References Examples

View source: R/my_wind_code.R

Description

Calculates a number of inputs and parameters needed for the Willoughby model for each observation of a storm track. This function intakes an inputed storm track and calculates these parameters for each observation in the storm tracks.These inputs and parameters are later used to model wind speed at each grid point for every observation.

Usage

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Arguments

full_track

A dataframe with interpolated hurricane track data, as created by create_full_track. This dataframe must have the following columns:

  • date: Date-time, in POSIXct format and UTC time zone

  • tclat: Latitude (decimal degree)

  • tclon: Longitude (decimal degrees), expressed as positive values (this model assumes all longitudes will be in the Western hemisphere)

  • vmax: Maximum 10-meter sustained wind speed (m / s)

Value

The input dataset, but with columns added for the Willoughby parameters for every observations. Added columns include:

References

Willoughby HE, Darling RWR, and Rahn ME. 2006. Parametric representation of the primary hurricane vortex. Part II: A new family of sectionally continuous profiles. Monthly Weather Review 134(4):1102-1120.

Examples

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## Not run: 
data("floyd_tracks")
full_track <- create_full_track(hurr_track = floyd_tracks)
with_wind_radii <- add_wind_radii(full_track = full_track)
head(with_wind_radii)

## End(Not run)

geanders/stormwindmodel documentation built on Oct. 15, 2018, 12:06 p.m.