辐射防护2024，Vol.44Issue(6)：623-630,8.
基于傅里叶级数的地表空气中210Pb活度浓度与气象参数的关系探讨
Study on the relationship between 210 Pb activity concentration in surface air and meteorological parameters based on Fourier series
李立凡 1范雪波 2李慧萍 3胡翔 3史鑫源 3陈东兵3
作者信息
- 1. 中国原子能科学研究院,北京 102413||北京市核与辐射安全中心,北京 100089
- 2. 北京市气象探测中心,北京 100176
- 3. 北京市核与辐射安全中心,北京 100089
- 折叠
摘要
Abstract
Based on the basic data of 210 Pb activity concentration in surface air,this study analyzed the correlation between 210 Pb activity concentration in surface air and meteorological parameters such as sunshine,temperature,relative humidity,pressure,average total cloud cover and rainfal.This study used Fourier series to complete the change trend prediction of 210 Pb activity concentration in surface air.The results showed that the monthly mean activity concentration of 210 Pb in the surface air had a strong negative correlation with temperature,relative humidity,average total cloud cover and rainfall while showed a strong positive correlation with air pressure,confirming the possibility of using Fourier series to predict the activity concentration of 210 Pb in surface air.In the activity concentration harmonic spectrum of 210 Pb,except for the maximum harmonic wave with a period of 1 year,the harmonic wave with a period of 5 years is also significant,but the periodicity is not very significant compared with temperature,relative humidity,pressure,average total cloud cover and rainfall.The Fourier series prediction results show that the predicted value of 210 Pb activity concentration in the surface air is roughly consistent with the measured value,but not completely consistent.In the subsequent research,machine learning,neural network and other methods can be considered to improve the prediction accuracy.关键词
傅里叶级数/空气/210Pb/活度浓度/气象参数Key words
fourier series/air/210 Pb/activity concentration/meteorological parameter分类
能源科技引用本文复制引用
李立凡,范雪波,李慧萍,胡翔,史鑫源,陈东兵..基于傅里叶级数的地表空气中210Pb活度浓度与气象参数的关系探讨[J].辐射防护,2024,44(6):623-630,8.
