Analysis of Climate Change Characteristics in Le'an County,Jiangxi Province from 1973 to 2022
In order to reveal the climate change characteristics of Le'an county in the past 50 years,based on the meteorological data of the National Basic Meteorological Station in Le'an county from 1973 to 2022,the study identified the climate change trends,mutation phenomena,and change cy-cles in Le'an county in the past 50 years by using linear trend analysis,M-K mutation test,and wavelet analysis.The results show a significant warming trend since 1973.The linear trend rate of the annual average temperature is 0.47℃/(10 a),and there was a sudden change in 2006.After the sudden change,the temperature rose significantly with distinctive periodic variation.The annual precipitation shows a stable trend with significant cyclical changes,while the annual average wind speed shows a slowly increasing trend,with the first main period being 42 years,and there are no obvious changes in annual precipitation and average annual wind speed.The comprehensive muta-tion time of climate change in Le'an county in the past 50 years is determined to be 2006.
climate change characteristicstrend analysischange cycleLe'an county
国家科技期刊平台
NSTL
万方数据
