Skip to main content

Advertisement

Log in

Correlations between hydrological drought and climate indices with respect to the impact of a large reservoir

  • Original Paper
  • Published:
Theoretical and Applied Climatology Aims and scope Submit manuscript

Abstract

With the construction of numerous water conservation projects, an assessment of the correlation between the evolution of hydrological drought and climate indices under in the context of large reservoirs helps to elucidate the response of the global environment to variations in hydrological drought. This study is focused on the Jinjiang River basin in southeastern China, where the Shilong hydrological station is affected by a large reservoir, and the Anxi hydrological station is not. Based on monthly streamflow data from 1960 to 2010, the Standardized Streamflow Index (SSI) was used to identify hydrological droughts. Pearson correlation coefficients (PCC) and the cross-wavelet transform (XWT) method were used to reveal detailed correlations between the SSI and climate indices. The correlations detected for both stations were then compared. The results indicate the following: (1) the correlations between the SSI and both ENSO (EI Niño-Southern Oscillation) and PDO (Pacific Decadal Oscillation) are more obvious than those of the other two climate indices, NAO (North Atlantic Oscillation) and AMO (Multi-decadal Oscillation). Moreover, the effect of EI Niño was more notable than that of La Niño. (2) Apparent intra-annual (12–48 months) and inter-decadal (128–256 months) common oscillation cycles between the SSI and ENSO were detected. Furthermore, there is an unequal lag time (1.47–1.80 months) between the coherence cycles of the SSI with ENSO. (3) The regulation functions of the large reservoir with respect to streamflow changed the correlations between the SSI and climate indices. The correlations at Shilong were weaker (stronger) than those at Anxi in the dry (wet) season.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8

Similar content being viewed by others

References

Download references

Acknowledgments

We wish to thank Hartmut Graßl (Editor-in Chief) and a magical anonymous reviewer for their valuable comments and suggestions that improve the paper. This research was supported by the Natural Science Foundation of China (Grant No. 41877167), the Science and Technology Major Project of Fujian Province (Grant No. 2019Y0009), and the International Program for Ph.D candidates, Sun Yat-sen University.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Xingwei Chen.

Additional information

Publisher’s note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Wu, J., Chen, X. & Chang, TJ. Correlations between hydrological drought and climate indices with respect to the impact of a large reservoir. Theor Appl Climatol 139, 727–739 (2020). https://doi.org/10.1007/s00704-019-02991-w

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s00704-019-02991-w

Navigation