Orbital-accelerated transient simulations of glacial-interglacial climate cycles for the last 800,000 years.

ABSTRACT: Over the last 800,000 years, Earth's climate has experienced periodic glacial and interglacial cycles driven by orbital parameters, CO₂ concentrations, and ice sheet volumes. To understand how these climate forcing factors influence climate on orbital scales, high-resolution and continuous paleoclimate simulations are crucial. This study employed the CESM1.2.2 Earth System Model for four 800,000-year orbital-accelerated transient climate simulations, including a full-forcing experiment and three single-factor forcing experiments. The results were compared with geological proxy records from various regions, showing good agreement in mid-low latitude monsoon systems, mid-latitude sea surface temperatures, and high-latitude North Atlantic climate variability. However, the model und

SUBMITTER: Su B 

PROVIDER: S-EPMC12149303 | biostudies-literature | 2025 Jun

REPOSITORIES: biostudies-literature