Description Usage Arguments Details Value References

View source: R/willoughby2006eqs.R

Calculates *A*, a paramter for the Willoughby wind model, using equation 10c
(Willoughby et al. 2006).

1 | ```
will10c(vmax_gl, tclat)
``` |

`vmax_gl` |
Numeric vector of the tangential wind component of the maximum gradient wind speed, in meters per second |

`tclat` |
Numeric vector of the absolute value of latitude, in degrees. |

This function calculates *A* using equation 10c (Willoughby et al.
2006):

*
A = 0.0696 + 0.0049 vmax_gl - 0.0064 φ*

where:

*A*: Parameter for the Willoughby wind model (any value of A calculated as negative is re-set to 0)*vmax_gl*: Tangential component of the maximum gradient-level sustained wind speed (in m / s)*φ*: Latitude, in decimal degrees

Any negative values of *A* are reset to 0.

A numeric vector that is a parameter required for the Willoughby model.

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.

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