Index of ftp://ftp.cmdl.noaa.gov/data/aer/spo/1975

[DIR] Parent Directory

[   ] ESRL-GMD-AEROSOL_v1.0_HOUR_SPO_s19750101T000000Z_e19760101T000000Z_c20200630T202333Z.nc  8.02Mb  June 30 2020
[   ] US6004G.19750101000000.20200630202332.cpc.particle_number_concentration.aerosol.1y.1h.US06L_GE_Rich_SPO.US06L_cpc_ref.lev2.nas  516.51Kb  June 30 2020