Unveiling shifts in Eurasian annual temperature cycles under anthropogenic warming.

ABSTRACT: The annual temperature cycle (ATC) is an essential component of Earth's ecological and climate systems, driving prominent oscillations in many organic and climate variables outside the tropics. Significant decreases in ATC amplitude have been evident across most extratropical Eurasian land areas over the last 70 years, particularly in Western Siberia. However, the long-term trend in the ATC phase yields substantial uncertainty, with its dominant change being a phase advance in Eastern Europe. The state-of-the-art climate models underestimate the amplitude decrease due to inadequate modeling of the ATC amplitude's response to anthropogenic surface warming, manifesting as a robust linear constraint across multiple models. The preliminary attribution analysis also indicates that the ATC ampli

SUBMITTER: Yan Y 

PROVIDER: S-EPMC12753635 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature