McConochieWindField

Grid point vortex Wind field, wind vectors. McConochie, J.D., T.A.Hardy and L.B.Mason, 2004: Modelling tropical cyclone over - water wind and pressure fields. Ocean Engineering, 31, 1757 - 1782.

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

McConochieWindField function

<dl><dt>rMax</dt>
<dd>radius of maximum winds in km</dd>
<dt>vMax</dt>
<dd>maximum wind velocity calculation in m/s</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>f</dt>
<dd>coriolis parameter at the centre of TC in hz</dd>
<dt>surface</dt>
<dd>equals one if winds are reduced from the gradient level to the surface, otherwise gradient winds.</dd></dl>

Arguments

McConochie Wind Field — McConochieWindField

<dl>

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


<dt>vMax</dt>
<dd>maximum wind velocity calculation in m/s</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>f</dt>
<dd>coriolis parameter at the centre of TC in hz</dd>


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

</dl>

McConochieWindField: McConochie Wind Field

Description

Usage

Value

Arguments