Arctic Ocean annual high in [Formula: see text] could shift from winter to summer.

ABSTRACT: Long-term stress on marine organisms from ocean acidification will differ between seasons. As atmospheric carbon dioxide (CO₂) increases, so do seasonal variations of ocean CO₂ partial pressure ([Formula: see text]), causing summer and winter long-term trends to diverge^1-5. Trends may be further influenced by an unexplored factor-changes in the seasonal timing of [Formula: see text]. In Arctic Ocean surface waters, the observed timing is typified by a winter high and summer low⁶ because biological effects dominate thermal effects. Here we show that 27 Earth system models simulate similar timing under historical forcing but generally project that the summer low, relative to the annual mean, eventually becomes a high across much of the Arctic Ocean

SUBMITTER: Orr JC 

PROVIDER: S-EPMC9534769 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature