小波阈值法在地面气象自动站资料审核中的应用  

Application of wavelet threshold method in verification and check of automatic weather station data

作　　者：王艳[1] 方晓[1] 高杰[1] 

机构地区：[1]沈阳区域气候中心,沈阳110016

出　　处：《气象与环境学报》2007年第2期42-44,共3页Journal of Meteorology and Environment

摘　　要：为了提高地面自动站资料审核的质量控制,引入了小波阈值法分析方法。根据气象资料的多时间尺度特征,通过小波分解分析了气象要素的变化过程、变化强度和变化复杂性,实现了噪声阈值对地面自动站资料异常数据的自动判别,保证了地面自动站资料质量的控制。Wavelet threshold method was introduced in order to improve the quality control of automatic weather station data. Based on the multiple time-scale characteristics of meteorological data, the change process, intensity and complexity of meteorological elements were analyzed with wavelet decomposition. And noise threshold could distinguish from the abnormity data automatically, which guaranteed the quality control of automatic weather sta- tion data.

关 键 词：小波阈值法 自动站资料 审核 应用 

分 类 号：P415.12[天文地球—大气科学及气象学]