大地测量与地球动力学2026，Vol.46Issue(5)：561-568,8.DOI:10.14075/j.jgg.2025.06.220
基于大气可降水量的AOD模型构建与分析
Development and Analysis of an Aerosol Optical Depth Model Based on Precipitable Water Vapor
摘要
Abstract
To investigate the correlation between precipitable water vapor(PWV)and aerosol optical depth(AOD),a novel AOD estimation model was developed based on PWV.The model incorporates not only a linear relationship between PWV and AOD but also accounts for the periodic characteristics observed in the residuals of the linear fit.Utilizing high-precision PWV and AOD data from 20 sta-tions in Yunnan from 2016 to 2019,the model was constructed and validated.The results reveal a strong lagged correlation between PWV and AOD in the region,with an average correlation coefficient of 0.82.The proposed model achieved excellent performance in AOD estimation,both in internal and external validations,yielding a mean standard deviation(STD)of 0.11 mm and a root mean square er-ror(RMSE)of 0.12 mm.This model effectively paves the way for estimating high-precision AOD from PWV,thereby opening up new avenues for atmospheric environmental monitoring and research using GNSS remote sensing.关键词
GNSS气象学/大气可降水量/气溶胶光学厚度/滞后相关性分析/云南地区Key words
GNSS meteorology/precipitable water vapor(PWV)/aerosol optical depth(AOD)/lag correlation analysis/Yunnan region分类
天文与地球科学引用本文复制引用
董秋林,杨飞,王伟,周大山,许凯雯,刘若涵..基于大气可降水量的AOD模型构建与分析[J].大地测量与地球动力学,2026,46(5):561-568,8.基金项目
国家自然科学基金(42204022) （42204022）
中央高校基本科研业务费专项(2024ZKPYDC02). （2024ZKPYDC02）
