Ambient noise station-correlation spectra for USArray stations

J12A-TA secondary stations.

F12A-TA F13A-TA G11A-TA G13A-TA G14A-TA G15A-TA H09A-TA H10A-TA H11A-TA H12A-TA
H13A-TA I08A-TA I09A-TA I10A-TA I11A-TA J08A-TA J09A-TA J10A-TA J11A-TA J13A-TA
K08A-TA K09A-TA K10A-TA K12A-TA K13A-TA K14A-TA L08A-TA L09A-TA L12A-TA L13A-TA
M09A-TA M10A-TA M11A-TA M12A-TA M13A-TA N11A-TA N12A-TA N13A-TA
HLID-US