Catalog https://thredds.daac.ornl.gov/thredds/catalogs/ornldaac/Field_Campaign_Data/ATom/ATom.html

Dataset	Size	Last Modified
`ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols, Version 2/`		`--`
`ATom: Merged Atmospheric Chemistry, Trace Gases, and Aerosols (superseded by version 2)/`		`--`
`ATom: Observed and GEOS-5 Simulated CO Concentrations with Tagged Tracers for ATom-1/`		`--`