Modern aridity in the Altai-Sayan mountain range derived from multiple millennial proxies.

ABSTRACT: Temperature and precipitation changes are crucial for larch trees growing at high-elevation sites covered by permafrost in the Altai-Sayan mountain range (ASMR). To contextualize the amplitude of recent climate fluctuations, we have to look into the past by analyzing millennial paleoclimatic archives recording both temperature and precipitation. We developed annually resolved 1500-year tree-ring cellulose chronologies (δ¹³C_cell, δ¹⁸O_cell), and used these new records to reconstruct the variability in local summer precipitation and air temperature. We combined our new local reconstructions with existing paleoclimatic archives available for the Altai. The data show a strong decreasing trend by ca. 49% in regional summer precipitation, along with a r

SUBMITTER: Churakova-Sidorova OV 

PROVIDER: S-EPMC9095625 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature