S.A. Hughes / Coastal Engineering 51 (2004) 10851104
1095
Fig. 4. Nondimensional run-up versus Iribarren number for regular waves.
clustered reasonably well for values of Iribarren
number below about 3.0. At values of nopN3.0
elevation for milder slopes ranging between 1/30
VtanaV1/5. Fig. 6 plots nondimensional 2% run-up
(representing steeper slopes and/or longer nonbreak-
Ru2%/Hmo versus Iribarren number nop. The solid line
ing waves) scatter increases significantly. Ahrens et al.
(1993) discussed reasons for the scatter and proposed
is Mase's best fit to the data previously given by Eq.
modified equations (Eqs. (12)(15)) to reduce the
(20). A very good fit is seen for all but a few points for
the steepest slope at nopN2.5.
scatter for nonbreaking wave conditions.
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