add_forward_speed: Add in forward speed of the storm

In geanders/stormwindmodel: Model Tropical Cyclone Wind Speeds

Add in forward speed of the storm

Description

Adds the storm's forward speed component (i.e., motion asymmetry) back into the estimated surface wind speed at a grid point location after rotational winds have been modeled for the location.

Usage

add_forward_speed(wind_sfc_sym, tcspd_u, tcspd_v, swd, cdist, Rmax)

Arguments

wind_sfc_sym	A numeric value with the estimated symmetric surface wind speed at the grid point, in meters / second
tcspd_u	A numeric value with the u-component of the tropical cyclone speed in meters / second
tcspd_v	A numeric value with the v-component of the tropical cyclone speed in meters / second
swd	A numeric value with the surface wind direction in degrees
cdist	A numeric value with the radius from the storm's center to the grid point in kilometers
Rmax	A numeric value with the radius at which maximum winds occur in kilometers

Details

This function uses equation 12 from Phadke et al. (2003).

Value

windspeed A numeric value with the asymmetric surface windspeed at the location, in meters/second

References

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.

geanders/stormwindmodel documentation built on Sept. 27, 2022, 6:47 a.m.