1488 
FIGURE 3 
v_neene eee rer a ee ee ee ee 
grnee* SR BA 
at —- 
Ee90° 
qe e7.se fenton FIGURE Se. FIGURE 3b. 
PRESSURE-TIME RECORDS SHOWING DISTORTION OF BOTTOM THEORETICAL PRESSURE-TIME CURVES FOR BOTTOM REFLECTION 
REFLECTION WITH INCREASING ANGLE OF INCIDENCE OF AN EXPONENTIAL SHOCK WAVE. 
©, : ANGLE OF INCIDENCE AT THE SEA BED yt 
BR: BOTTOM REFLECTION 
INCIDENT WAVE: pe © 
REFLECTED WAVE: ps» fcos2e + Fsin2e 
PHASE SHIFT FOR VARIOUS ANGLES OF INCIDENCE: € 
SR: SURFACE REFLECTION 
TIMING WAVE: IO KC. 
12 
