Simulation to Examine How Lower Crustal Velocity and Moho Depth Trade Off in Low-Frequency Full-Waveform Inversions that use Transverse-Component Seismograms. Strategy: Compare seismograms produced by three models: A reference model, a model where just lower crustal velocity is perturbed, and a model in which both lower crustal velocity and Moho depth are perturbed in a compensating way. Bill Menke, December 2000.