Removes the forward speed of the storm from the maximum storm wind speed, \(V_{max}\), to estimate \(V_{max,sym}\), the storm's maximum 10-m 1-min sustained wind with motion asymmetry removed.
remove_forward_speed(vmax, tcspd)A numeric vector giving maximum 10-m 1-minute sustained wind (m / s)
A numeric vector giving the tropical cyclone's forward speed (m / s).
A numerical vector with \(V_{max,sym}\), the storm's maximum 10-m 1-min sustained wind with motion asymmetry removed, in m / s.
This function is based on equation 12 (and accompanying text) in Phadke et al. 2003. Based on this paper, the correction factor for forward speed is at its highest at the radius of maximum winds, where it equals 0.5 times the forward wind speed.
Phadke AC, Martino CD, Cheung KF, and Houston SH. 2003. Modeling of tropical cyclone winds and waves for emergency management. Ocean Engineering 30(4):553-578.