Ambient noise station-correlation spectra for USArray stations

Q11A-TA secondary stations.

M11A-TA M12A-TA N09A-TA N10A-TA N11A-TA N12A-TA N13A-TA O08A-TA O09A-TA O10A-TA
O11A-TA O12A-TA P07A-TA P08A-TA P09A-TA P10A-TA P11A-TA P12A-TA Q07A-TA Q08A-TA
Q09A-TA Q12A-TA R08A-TA R09A-TA R10A-TA S08C-TA S09A-TA U10A-TA U11A-TA U12A-TA
FUR-CI GRA-CI
DUG-US TPNV-US