In this experiment, we will deploy ~600 nodal seismometers throughout Yellowstone National Park for a little over a month. For the passive portion of the array, we will deploy geophones more or less evenly along all accessible roads (~3 km spacing) within Yellowstone National Park to supplement the existing permanent network. About a month of passive data will be collected, and ambient noise tomography will be applied to determine both Rayleigh and Love wave phase velocity and Rayleigh wave H/V ratio maps. With the dense station coverage, we expect we will be able to obtain a Vs model with lateral resolution ~5 km compatible to the Vp model constructed using earthquakes. In addition to ambient noise, we will also utilize both local and teleseismic earthquakes to provide additional constraints.
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