Question

After explaining this set-up, tell me how you would determine the minimum duration? What is the variable (distance or time) you will use to find minimum duration, and why would you start with a wind speed of zero to begin plotting the growth of the spectra for this time variable?

How would you tell from the spectral plot that the minimum duration required for FD had been reached?

Answer 1

To determine the minimum duration in spectral plotting, you need to plot the growth of the spectra for the variable of time. By starting with a wind speed of zero, you can observe the initial state of the spectra and track its growth over time. The minimum duration required for FD can be identified from the spectral plot when the spectra reach their maximum and start to decrease or stabilize.

Step-by-step explanation:

Minimum Duration in Spectral Plotting

To determine the minimum duration in spectral plotting, you need to plot the growth of the spectra for the variable of time. By starting with a wind speed of zero, you can observe the initial state of the spectra and track its growth over time. The minimum duration required for FD can be identified from the spectral plot when the spectra reach their maximum and start to decrease or stabilize.