Climate of the Past
Climate of the Past
CP
Articles | Volume 19, issue 11
Articles | Volume 19, issue 11
https://doi.org/10.5194/cp-19-2079-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/cp-19-2079-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 19, issue 11
Research article
 | 
30 Oct 2023
Research article |  | 30 Oct 2023

Drought reconstruction since 1796 CE based on tree-ring widths in the upper Heilongjiang (Amur) River basin in Northeast Asia and its linkage to Pacific Ocean climate variability

Yang Xu, Heli Zhang, Feng Chen, Shijie Wang, Mao Hu, Martín Hadad, and Fidel Roig

Supplement

https://doi.org/10.5194/cp-19-2079-2023-supplement

Data sets

G-RUN ENSEMBLE: A Multi-Forcing Observation Based Global Runoff Reanalysis G. Ghiggi, V. Humphrey, S. I. Seneviratne, and I. Gudmundsson https://doi.org/10.6084/m9.figshare.1279-4075

Objective analyses of sea-surface temperature and marine meteorological variables for the 20th~century using ICOADS and the Kobe collection M. Ishii, A. Shouji, S. Sugimoto, and T. Matsumoto https://psl.noaa.gov/data/gridded/data.cobe.html

The NCEP/NCAR 40-year reanalysis project E. Kalnay, M. Kanamitsu, R. Kistler, W. Collins, D. Deaven, L. Gandin, M. Iredell, S. Saha, G. White, J. Woollen, Y. Zhu, M. Chelliah, W. Ebisuzaki, W. Higgins, J. Janowiak, K. C. Mo, C. Ropelewski, J, Wang, A. Leetmaa, R. Reynolds, R. Jenne, and D. Joseph https://psl.noaa.gov/data/gridded/data.ncep.reanalysis.html

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Short summary
We reconstructed the monthly mean self-calibrating Palmer drought severity index for May–July in the upper Heilongjiang (Amur) Basin since 1796. Our analysis suggests that the dry/wet variability in this basin is related to several large-scale climate stresses and atmospheric circulation patterns (El Niño–Southern Oscillation). The cause of drought is primarily a reduction in advective water vapor transport, rather than precipitation circulation processes.
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