The
Overtopping Manual This page contains some additions and discussions related to the overtopping manual.
For further information is referred to: A pdf with errata (on the first internet edition) The Neural Network as can be downloaded from www.overtoppingmanual.com does not work properly because of missing licence file. See updated information below.

Section 5.3.1, p82, equation 5.11:
Lander Victor remarks that the definition of the power c in the formula is not
clear. In probabilistic calculations c can be considered as a stochast with mean
0.92 and a standard deviation of 0.24.
For deterministic calculations an exceedance
frequency of 15% is assumed. The Gaussian distribution gives u_{15%} =
1,035. So c becomes c=0.92 + 1.035*0.24 = 0.672. And 10^{0.672}
= 0.21. This is the coefficient in equation 5.10.
Section 5.4, p 99, equation 5.33:
Lander Victor remarks that T_{m} in eq. 5.33 might be replaced by T_{m1,0},
which is in line with figure 5.32, also mentioning T_{m1,0}.
Section 6.3.3, p118, equation 6.8
Corrado Altomare remarks that the formula presented here is different from the
formula originally presented by Van der Meer, and in the Manual presented as
formula 5.24. In that formula a multiplier (10.0033β)
is used, while in 6.8 a multiplier (10.0063β) is used.
Formula 6.8 is restricted to permeable
(armourstone) structures under oblique wave attack, while formula 4.25 is for
smooth, impermeable slopes.
Neural Network update:
The Neural Network Overtopping tool is freely available now on the Deltares
website as a web application. To use this application please visit
http://www.deltares.nl/en/software/630304/overtoppingneuralnetwork and
start the application by clicking the following link:
Open Overtopping Neural Network on this website.
Further, in case you still want to use the standalone version of Neural Network
Overtopping Tool, you can download it from the deltares ftpaccount. Below you
can find information on this ftpaccount.
Host name =
ftp.wldelft.nl
User name = overtopnn
Password = sueu978
Account = <leave this blank>
Directory = <leave this blank>
The URL representation of the account, e.g., for use in a browser, is:
ftp://overtopnn:sueu978@ftp.wldelft.nl
After downloading, please run the setup. This will install/update the files on
your system.
For further inquiries, contact
Jan Kramer of Deltares