HubbertWindFieldPi

Time series vortex Wind, wind vectors. Hubbert, G.D., G.J.Holland, L.M.Leslie and M.J.Manton, 1991: A Real - Time System for Forecasting Tropical Cyclone Storm Surges. *Weather and Forecasting*, **6 * *, 86 - 97

Methods for generating modelled parametric Tropical Cyclone (TC) spatial hazard fields and time series output at point locations from TC tracks. R's compatibility to simply use fast 'cpp' code via the 'Rcpp' package and the wide range spatial analysis tools via the 'terra' package makes it an attractive open source environment to study 'TCs'. This package estimates TC vortex wind and pressure fields using parametric equations originally coded up in 'python' by 'TCRM' <https://github.com/GeoscienceAustralia/tcrm> and then coded up in 'Cuda' 'cpp' by 'TCwindgen' <https://github.com/CyprienBosserelle/TCwindgen>.

Julian O'Grady

TCHazaRds

Tropical Cyclone (Hurricane, Typhoon) Spatial Hazard Modelling

HubbertWindFieldPi function

<dl><dt>f</dt>
<dd>single coriolis parameter at the centre of TC in hz</dd>
<dt>rMax</dt>
<dd>radius of maximum winds in km</dd>
<dt>vFm</dt>
<dd>input forward velocity of TC</dd>
<dt>thetaFm</dt>
<dd>input forward direction of TC</dd>
<dt>Rlam</dt>
<dd>two columns for distances and direction from grid points to TC centre in km</dd>
<dt>V</dt>
<dd>velocity profile</dd>
<dt>surface</dt>
<dd>equals one if winds are reduced from the gradient level to the surface, otherwise gradient winds.</dd></dl>

Arguments

Hubbert Wind Field Time Series — HubbertWindFieldPi

<dl>

<dt>f</dt>
<dd>single coriolis parameter at the centre of TC in hz</dd>


<dt>rMax</dt>
<dd>radius of maximum winds in km</dd>


<dt>vFm</dt>
<dd>input forward velocity of TC</dd>


<dt>thetaFm</dt>
<dd>input forward direction of TC</dd>


<dt>Rlam</dt>
<dd>two columns for distances and direction from grid points to TC centre in km</dd>


<dt>V</dt>
<dd>velocity profile</dd>


<dt>surface</dt>
<dd>equals one if winds are reduced from the gradient level to the surface, otherwise gradient winds.</dd>

</dl>

HubbertWindFieldPi: Hubbert Wind Field Time Series

Description

Usage

Value

Arguments