Formation of the North Atlantic Warming Hole by reducing anthropogenic sulphate aerosols.

ABSTRACT: The North Atlantic Warming Hole (NAWH) has been observed and predicted due to the increase in carbon dioxide (CO₂) concentration. If sulphate aerosols, which have a cooling effect on the atmosphere, are reduced by air pollution control, the NAWH may form as it would if CO₂ concentrations increased. In this study, sensitivity experiments using a coupled atmosphere-ocean-aerosol model were conducted by varying the amount of sulphur dioxide (SO₂) emissions, a precursor of sulphate which is the primary anthropogenic aerosol in the atmosphere, to analyse the changes in the ocean temperature, salinity, and density. The results showed that although the spatial patterns of the NAWH due to the changes in SO₂ emissions was similar to that due to the change

SUBMITTER: Kusakabe Y 

PROVIDER: S-EPMC9807570 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature