Project: GCOS Earth Heat Inventory - A study under the Global Climate Observing System (GCOS) concerted international effort to update the Earth heat inventory (EHI), and presents an updated international assessment of ocean warming estimates, and new and updated estimates of heat gain in the atmosphere, cryosphere and land over the period from 1960 to present. Summary: The file “GCOS_EHI_1960-2020_Atmosphere_Heat_Content_data.nc” presents an updated estimate of the atmospheric heat content (AHC) from 1960-2020 calculated using observational data and reanalyses. The estimate is given for the AHC relative to 1960. This represents an update to the record described in von Schuckmann et al. (2020) with the ENSO signal removed. The data are used in von Schuckmann et al. (2022).