Ambient noise station-correlation spectra for USArray stations

E14A-TA secondary stations.

A13A-TA B12A-TA B13A-TA C12A-TA C13A-TA C14A-TA D10A-TA D11A-TA D12A-TA D13A-TA
D14A-TA D15A-TA E10A-TA E11A-TA E13A-TA E15A-TA F10A-TA F11A-TA F12A-TA F13A-TA
F14A-TA F15A-TA G11A-TA G13A-TA G14A-TA G15A-TA H11A-TA H12A-TA H13A-TA
BOZ-US