Hydroclimatic anomalies detected by a sub-decadal  diatom oxygen isotope record of the last  220 years from Lake Khamra, Siberia

Stieg, Amelie; Biskaborn, Boris K.; Herzschuh, Ulrike; Strauss, Jens; Pestryakova, Luidmila; Meyer, Hanno

doi:https://doi.org/10.5194/cp-20-909-2024

Articles | Volume 20, issue 4

https://doi.org/10.5194/cp-20-909-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/cp-20-909-2024

© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 4

Research article

|

11 Apr 2024

Research article |

| 11 Apr 2024

Hydroclimatic anomalies detected by a sub-decadal diatom oxygen isotope record of the last 220 years from Lake Khamra, Siberia

Amelie Stieg, Boris K. Biskaborn, Ulrike Herzschuh, Jens Strauss, Luidmila Pestryakova, and Hanno Meyer

Data sets

Sub-decadal diatom oxygen isotope record and biogeochemical data of the last 220 years (2015-1790 CE) based on a sediment short core from Lake Khamra Amelie Stieg et al. https://doi.org/10.1594/PANGAEA.962988

Short summary

Siberia is impacted by recent climate warming and experiences extreme hydroclimate events. We present a 220-year-long sub-decadal stable oxygen isotope record of diatoms from Lake Khamra. Our analysis identifies winter precipitation as the key process impacting the isotope variability. Two possible hydroclimatic anomalies were found to coincide with significant changes in lake internal conditions and increased wildfire activity in the region.