Preprints
https://doi.org/10.5194/npg-2015-75
https://doi.org/10.5194/npg-2015-75

  23 Mar 2016

23 Mar 2016

Review status: this preprint has been withdrawn by the authors.

Multi-scale analysis of the Asian Monsoon change in the last millennium

TingGui Jiang1,2,3, JiaJia Lin4, ZhenShan Lin1,2,3, and YuXia Li1,2,3 TingGui Jiang et al.
  • 1College of Geography Science, Nanjing Normal University, Nanjing, China
  • 2Jiangsu Key Laboratory of Environmental Change and Ecological Construction, Nanjing, China
  • 3Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing, China
  • 4Department of Earth and Environmental Sciences, University of Illinois at Chicago, Chicago, IL, USA

Abstract. The change rule and the driving mechanism of the Asian monsoon (AM) is widely concerned. In this paper, we have decomposed the Huangye cave δ18OR datasets (proxy for AM) into variations at different time scales with the Ensemble Empirical Mode Decomposition (EEMD) method, obtained the main cycles of the Asian monsoon changes and drought and wet periods in the last millennial history, analysed and predicted the precipitation trend at the local site in the future. Meantime, we have also decomposed 10Be (proxy for solar activity) and average Northern Hemisphere Temperature (NHT) datasets with the EEMD method. The relationship among the components of δ18OR, 10Be and NHT shows that NHT as well as solar activity has the obvious driving effect on the AM at millennial scales, and NHT with the frequency and amplitude modulations can influence the intensity of the AM more directly and obviously than the solar activity in the last 1000 years.

This preprint has been withdrawn.

TingGui Jiang et al.

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TingGui Jiang et al.

TingGui Jiang et al.

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This preprint has been withdrawn.

Short summary
This paper is mainly about the change rule and the driving mechanism of the Asian monsoon in the last millennial. We obtain the main cycles of the Asian monsoon changes, drought and wet periods in the history, and can predict the precipitation trend at the local site in the future. It also shows that solar activity and average Northern Hemisphere Temperature can influence the intensity of the Asian monsoon in the different degree in the last 1000 years.