Earthdata
CMR Virtual Directories

BUV/Nimbus-4 Ozone (O3) Nadir Profile and Total Column 1 Day L2 V8.7 (BUVN04L2)
temporal

Year	File Count
1970	266
1971	344
1972	320
1973	224
1974	276
1975	259
1976	238
1977	94

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