TCHazaRds (version 1.1.2)

TCHazaRdsWindTimeSereies: Compute the Wind Hazards Associated Over the Period of a TCs Event at one Given Location

Description

Compute the Wind Hazards Associated Over the Period of a TCs Event at one Given Location

Usage

TCHazaRdsWindTimeSereies(
  outdate = NULL,
  GEO_land = NULL,
  TC,
  paramsTable,
  returnWaves = FALSE
)

Value

list() containing a timeseries

abbreviated attribute	description	units
date	POSIX data time object of TC or outdate if provided	as.POSIX
P	Atmospheric pressure	hPa
Uw	Meridional wind speed	m/s
Vw	Zonal wind speed	m/s
Sw	Wind speed	m/s
R	distance to TC centre	m
rMax	radius of maximum wind	km
vMax	TC maximum velocity	m/s
b	TC wind profile exponent	-
CP	TC central Pressure	hPa
dPdt	change in TC CP per hour	hPa/hr
vFm	velocity of TC forward motion	m/s
Hs0	Deep water significant wave height	m
Tp0	Deep water Peak wave period	s
Dp0	The peak direction in which wave are heading	deg clockwise from true north.

Arguments

outdate

array of POSITx date times to linearly interpolate TC track,optional.

GEO_land

dataframe hazard geometry generated with land_geometry

TC

SpatVector of Tropical cyclone track parameters

paramsTable

Global parameters to compute TC Hazards.

returnWaves

Return ocean wave parameters (default = FALSE)

Details

The function calculates wind speed and direction time series from a tropical cyclone track using various wind profile models.

Examples

GEO_land = data.frame(dem=0,lons = 147,lats=-18,f=-4e-4,inlandD = 0)

require(terra)
TCi <- vect(system.file("extdata/YASI/YASI.shp", package="TCHazaRds"))
TCi$PRES <- TCi$BOM_PRES

paramsTable = read.csv(system.file("extdata/tuningParams/defult_params.csv",package = "TCHazaRds"))
HAZts = TCHazaRdsWindTimeSereies(GEO_land=GEO_land,TC=TCi,paramsTable = paramsTable)
main =  paste(TCi$NAME[1],TCi$SEASON[1],"at",GEO_land$lons,GEO_land$lats)
#with(HAZts,plot(date,Sw,format = "%b-%d %H",type="l",main = main,ylab = "Wind speed [m/s]"))