Let Z i be the computed height from the ith frame of a target image sequence, and let h be the height feature (scalar).
Figure 7 compares the computed heights (H) of the flood marks (super-elevation) on the right and left banks of the flow, with respect to the lowest level at each cross-section, obtained from the V-t6 and T-t1 numerical analyses, with the values indicated by Takahashi (1991, 2007).
More precisely, the well-balanced requirement is fulfilled by following the surface gradient method, while the positivity requirement of the computed water height component is ensured by following a new technique specially designed for the unstaggered central schemes.
To quantify the comparison, the geometric mean K and geometric standard deviation κ of observed and computed heights (Aida 1978) are computed.
The computed runup height of a tsunami with a reef width of 1,000 m is about half the runup height without a reef (Kunkel et al. 2006).
Figure 9 shows the computed temporal height changes of the Genroku terrace in case 350_4.
Hence, the computed crossover height differences at different locations permit an internal accuracy assessment.
However, practically we have set an upper limit for H based on the computed optimal height values.
The shape of the computed PDF can be characterized by the FWHM and the maximum height of the curve.
Fig. 3 Illustration of the computed estimates and inactivity period.
