Intra‐annual transfer of hydrogen and oxygen isotopic signals from water and sugar precursors to tree rings: Processes and mechanisms

Key Points

• The research aims to understand how hydrogen and oxygen isotopic signals from water and sugar precursors transfer to tree rings.
• Analyzed covariation of isotopes in tree rings
• Examined mechanisms of isotopic signal transfer
• Utilized climate variability models
• Demonstrated transfer mechanisms are significant in tree rings
• Found strong covariation supporting climate interpretations
• Indicated improved robustness of isotopic records