Study on qi circulating characteristics of the meteorological cycle and extreme climate in Henan Province for 60 years
Objective:To explore the influence of different factors in the theory of five yun and six qi on climate.Methods:Based on the daily accumulated precipitation,daily average temperature,daily maximum temperature,daily average wind speed and other data in Henan Province during the 60 years from 1960 to 2019,the complex Morlet wavelet is used to analyze the periods of the above meteorological data changes,explore the correlation of the periods related to the yun and qi,and analyze the characteristics of yun and qi of the years with extreme weather such as rainstorm,high temperature and strong wind.Results:In the 60-year time frame,Henan Province had a 6-year quasi-cycle in terms of precipitation;In terms of high temperature,the periodicity of the change was not significant,but the occurrence of extreme high temperature was more related to the attributes of the qi of Sitian and Zaiquan.In terms of wind speed,there was an 11-year quasi-cycle.Conclusion:The 60-year meteorological change cycle in Henan Province is nearly consistent with the cycle of six-qi of three-yin and three-yang,and the qi of Sitian and Zaiquan has played a significant role in the extreme of the climate.And the correction effect of the qi of conquer and restraining on the climate cannot be ignored.
Five yun and six qiHenan ProvinceMeteorological cycleExtreme climateComplex Morlet wavelet analysis
NETL
NSTL
万方数据
