2. Following question 1 and the discussion about 2D Green's function in the class, numerically calculate the single frequency waveforms observed at station 1 and station 2 for a series of sources on the y axis. Use the following information for your calculation. Period 50 sec; velocity=4 km/sec; x1=500 km; x2=1000 km; sources are from y=-10000 km to 10000 km with a 10 km interval; up (r,t) = 1 ei(wt-kx-+). What is the 2 amplitude difference between station 1 and station 2? Compared to a single source at y=0 (yellow star), what is the phase shift at station 1 and station 2? Do your answers agree with your expectations? y X Station 1 Station 2