Application of Wavelet Analysis to Correlation Between Sunspot Activity and Precipitation in Yunnan Province

Siyuan Du, Zhongmu Li

2022

Abstract

Wavelet analysis is widely applied in the processing of time series such as climate and hydrology to extract the change characteristics and periodic relations. Based on wavelet analysis and time lag correlation analysis, this paper studies the correlation between sunspot numbers and precipitation at seven meteorological stations in Yunnan Province from year 1959 to 2019.The results show that the cross wavelet analysis and time lag correlation analysis are suitable for studying the periodic response and time delay relationship between solar activity and climate factors. These two methods can extend to other geographical locations. It is shown that the resonance period between sunspot numbers and the annual mean precipitation at the seven meteorological stations are mainly concentrated in the scale of 8-12a, and there are obvious time lag relationships between these time series from the phase angle. The time lag correlation analysis shows that there are different time delays between sunspot numbers and precipitation in different climatic regions.

Paper Citation

in Harvard Style

Du S. and Li Z. (2022). Application of Wavelet Analysis to Correlation Between Sunspot Activity and Precipitation in Yunnan Province. In Proceedings of the 3rd International Symposium on Automation, Information and Computing - Volume 1: ISAIC; ISBN 978-989-758-622-4, SciTePress, pages 224-229. DOI: 10.5220/0011918400003612

in Bibtex Style

@conference{isaic22,
author={Siyuan Du and Zhongmu Li},
title={Application of Wavelet Analysis to Correlation Between Sunspot Activity and Precipitation in Yunnan Province},
booktitle={Proceedings of the 3rd International Symposium on Automation, Information and Computing - Volume 1: ISAIC},
year={2022},
pages={224-229},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011918400003612},
isbn={978-989-758-622-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Symposium on Automation, Information and Computing - Volume 1: ISAIC
TI - Application of Wavelet Analysis to Correlation Between Sunspot Activity and Precipitation in Yunnan Province
SN - 978-989-758-622-4
AU - Du S.
AU - Li Z.
PY - 2022
SP - 224
EP - 229
DO - 10.5220/0011918400003612
PB - SciTePress