Abstract
AbstractThe Siberian high (SH) experienced a decline from the 1970s to 1990s and a recovery in recent years. The evolution of the SH under global warming is unclear. In this study, 41 Coupled Model Intercomparison Project Phase 5 (CMIP5) climate models are evaluated in terms of their ability to simulate the temporal evolution of the SH in the 19th and 20th centuries and the spatial pattern of the SH during 1981–2005. The results show that 12 models can capture the temporal evolution of the SH center intensity (SHCI) for 1872–2005. The linear correlation coefficient between the SHCI from the Twentieth Century Reanalysis and the simulated SHCI from the multi-model ensemble (MME) of the 12 models is 0.3 on annual and inter-annual scales (above the 99% confidence level). On decadal and multi-decadal time scales, the MME also captures the pronounced reduction (between 1981–2000 and 1881–1900 period) and the recovery (during 1991–2005) of the SH intensity. Finally, the future evolution of the SH is investigated...
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