Skip to main content

Alternation of the Atmospheric Teleconnections Associated with the Northeast China Spring Rainfall during a Recent 60-Year Period

Abstract

Northeast China (NEC) is China’s national grain production base, and the local precipitation is vital for agriculture during the springtime. Therefore, understanding the dynamic origins of the NEC spring rainfall (NECSR) variability is of socioeconomic importance. This study reveals an interdecadal change in the atmospheric teleconnections associated with the NECSR during a recent 60-year period (1961–2020). Before the mid-1980s, NECSR had been related to a Rossby wave train that is coupled with extratropical North Atlantic sea surface temperature (SST), whereas, since the mid-1980s, NECSR has been linked to a quite different Rossby wave train that is coupled with tropical North Atlantic SST. Both Rossby wave trains could lead to enhanced NECSR through anomalous cyclones over East Asia. The weakening of the westerly jet over North America is found to be mainly responsible for the alternation of the atmospheric teleconnections associated with NECSR during two epochs.

摘 要

中国东北地区是主要粮食产区, 春季降水对于当地农业生产有着十分重要的影响. 深入理解影响东北春季降水变率的物理过程有着重要社会和经济意义. 本研究发现, 影响东北春季降水的大气遥相关型在近 60 年时段内 (1961-2020) 发生了年代际转变. 在 20 世纪 80 年代中期之前 (后), 东北春季降水主要受到与热带外 (热带) 北大西洋海表温度耦合的、 沿西风急流 (大圆路径) 传播的准定常罗斯贝波影响, 导致东亚地区受到气旋性环流的控制, 水汽输送至东北, 使得春季降水增多. 北美地区上空西风急流减弱是东北春季降水大气遥相关型发生转变的主要原因.

This is a preview of subscription content, access via your institution.

Data Availability Statement. The NCEP/NCAR Reanalysis can be obtained at https://psl.noaa.gov/data/gridded/data.ncep.reanal-ysis.html, the JRA-55 dataset can be downloaded from https://rda.ucar.edu/#!lfd?nb=y&b=proj&v=JMA%20Japanese%2000-year%20Reanalysis, and the ERA5 reanalysis data can be obtained from https://cds.climate.copernicus.eu/cdsapp#!/search?type=dataset. The global monthly precipitation data can be derived from https://psl.noaa.gov/data/gridded/data.prec.html, and the monthly mean SST data can be obtained at https://psl.noaa.gov/data/gridded/data.noaa.ersst.v5.html.

References

Download references

Acknowledgements

The authors would like to thank the editor and two reviewers for their strict and high-quality review. This work was supported by the National Natural Science Foundation of China (Grant Nos: 42088101 & 42175033), and the High-Performance Computing Center of Nanjing University of Information Science & Technology.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Zhiwei Zhu.

Additional information

Article Highlights

• The linkage between Northeast China spring rainfall and tropical North Atlantic SST is unstable.

• The unstable relationship is caused by the alternation of the associated stationary equivalent barotropic Rossby wave trains.

• The alternation of the barotropic Rossby wave trains is induced by the weakening of the westerly jet stream over North America.

Electronic Supplementary Material to

376_2022_2024_MOESM1_ESM.pdf

Alternation of the Atmospheric Teleconnections Associated with the Northeast China Spring Rainfall during a Recent 60-Year Period

Rights and permissions

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

Cite this article

Zhu, Z., Lu, R., Fu, S. et al. Alternation of the Atmospheric Teleconnections Associated with the Northeast China Spring Rainfall during a Recent 60-Year Period. Adv. Atmos. Sci. 40, 168–176 (2023). https://doi.org/10.1007/s00376-022-2024-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00376-022-2024-3

Keywords

  • Northeast China spring rainfall
  • Rossby wave train
  • interdecadal change
  • westerly jet stream

关键词

  • 中国东北春季降水
  • 准定常罗斯贝波列
  • 年代际转变
  • 西风急流