Catalog https://vortices.npm.ac.uk/thredds/catalog/cci/v4.2-release/geographic/monthly/chlor_a/2020/catalog.html

Dataset	Size	Last Modified
`2020`		`--`
`ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_GEO_PML_OCx-202001-fv4.2.nc`	`156.1 Mbytes`	`2020-06-05T09:13:54Z`
`ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_GEO_PML_OCx-202002-fv4.2.nc`	`159.0 Mbytes`	`2020-06-05T09:14:53Z`
`ESACCI-OC-L3S-CHLOR_A-MERGED-1M_MONTHLY_4km_GEO_PML_OCx-202003-fv4.2.nc`	`163.4 Mbytes`	`2020-06-05T09:14:02Z`