Table 3 Initial variability values for the amplification factors in the real frequency domain for the RP, NP, and TP profile sets

Total initial variability \(\sigma_{{0{\text{m}}}}\)

Maximum initial variability \(\sigma_{{0{ \hbox{max} }}}\)

σ (T = 0.01 s)

σ (T = 0.02 s)

σ (T = 0.04 s)

σ (T = 0.07 s)

σ (T = 0.1 s)

σ (T = 0.2 s)

σ (T = 0.4 s)

σ (T = 0.7 s)

σ (T = 1.0 s)

σ (T = 2.0 s)

σ (T = 4.0 s)

σ (T = 7.0 s)

σ (T = 10.0 s)