It is found that downstream moving storms with Ls/L<1.0 increase the peak discharges to a limited extent compared to stationary storms, and the kinematic-wave model overstates the increase in the peak flows resulting from downstream moving storms with Ls/L<1.0.
For a downstream moving wave oscillations of wave velocity, hot spot temperature and exit conversion have been measured.
Whereas, the kinematic wave model substantially overestimates the peak discharge of downstream moving storms, and yields generally poorer fits than for upstream moving storm, i.e. NSE equal to 0.867 and 0.674 for storms with lengths equal to and not equal to the watershed length, respectively.
To evaluate the importance of the backwater effects in the experimental watershed, the accuracy of kinematic-wave and dynamic-wave models for the simulation of surface runoff resulting from upstream and downstream moving storms was evaluated utilizing the same experimental data.
The dynamic-wave model simulates the downstream moving storms pretty well, i.e. NSE equal to 0.843 and 0.879 for storms with lengths equal to and not equal to the watershed length, respectively, indicating backwater significantly affects runoff for even this simple experimental watershed.
The hypothesis that downstream moving storms with storm length less than watershed length (Ls/L<1.0) magnify the peak discharges as indicated by kinematic-wave models in previous studies was evaluated in an analysis of the dimensionless peak discharge and dimensionless storm velocity.
Does a downstream move make sense for your company?
A downstream move makes sense in many cases today, but not in every case.
If, finally, the industry's channel is controlled by big, consolidated distributors the Wal-Marts of the world a downstream move will be tough to pull off.
If your ability to differentiate your products is declining, or if your customers are gaining power through consolidation, a downstream move may be a necessity, providing the only way to escape a profit squeeze in your core manufacturing business.
