Introduction Scope Experimental Arrangement Figure 1. Inlet model research facilityFigure Model Inlet entrance channel with parallel jetties and an oblique wave approach Table 1 Model-Prototype Scale Relations at 1:50 Undistorted ScaleInstrumentation and Calibration - TR-CHL-98-310016Table 2. Laboratory Wave ParametersExperiment Procedures and Data Analysis Figure 4. Comparison of target and measured spectra for wave generation Figure 5. Snapshot of wave records at wave generator and in entrance channel at same time for a test without currents (Experiment 58) and with ebb currents (Experiment 70)Figure 6. Time series of currents in channel at meter location 5, run 61Table 3 Calculated Wave Parameters from Downcrossing AnalysisTable 4 Calculated Wave Parameters from Single Channel Frequency Domain Analysis Results - TR-CHL-98-3100241-D Wave-Current InteractionBreaking FormulationsSpectraFigure 7. Spectra for Tp = 0.7 s, Hmo = 5.5 cm, and U = 24 cm/sCalculating Wave Breaking on a Current Figure 9. Dissipation versus steepnessFigure 11. Miche criterion Wave heightsFigure 13. Battjes-Janssen dissipationFigure 15. Wave height transformationFigure 16. Wave height transformationFigure 18 Wave height transformation Conclusions - TR-CHL-98-310037References - TR-CHL-98-310038References - TR-CHL-98-310039Photo 1. Wave height: 5.5 cm, wave period: 1.4 sec, no current Photo 2. Wave height: 5.5 cm, wave period: 1.4 sec, ebb current: 12 cm/secPhoto 3. Wave height: 5.5 cm, wave period 1.4 sec, ebb current: 24 cm/secPhoto 4. Wave height: 5.5 cm, wave period 0.7 sec, no current Photo 5. Wave height: 5.5 cm, wave period 0.7 sec, ebb current: 12 cm/secPhoto 6. Wave height: 5.5 cm, wave period: 0.7 sec, ebb current: 24 cm/secAppendix A Data TablesTable A1 cont'd - TR-CHL-98-310047Table A1 cont'd - TR-CHL-98-310048Table A1 concludedTable A2 Still-Water Depths at Guages Appendix B Spectra PlotsFigure - TR-CHL-98-310052Figure - TR-CHL-98-310053Figure - TR-CHL-98-310054Figure - TR-CHL-98-310055Figure - TR-CHL-98-310056Appendix C NotationNotation cont'dREPORT DOCUMENTATION PAGE - TR-CHL-98-310059TR-CHL-98-31