PRINCIPAL COMPONENT ANALYSIS OF DATA FOR TRACE-ELEMENTS AND MAIN COMPONENTS IN PRECIPITATION FALLING ON NORWAY

被引：2

作者：

BERG, T ^{[1
]}

ROYSET, O ^{[1
]}

STEINNES, E ^{[1
]}

机构：

[1] NORWEGIAN INST AIR RES, N-2007 KJELLER, NORWAY

来源：

ENVIRONMENTAL MONITORING AND ASSESSMENT | 1994年 / 31卷 / 03期

关键词：

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Trace elements and the main components in precipitation were measured at three background sites in Norway. The work is based on weekly samples from 1989 and 1990. Principal component analysis was used to detect the covariation of the chemical components in the data set. Dominant factors are long-range atmospheric transport of anthropogenic components to Norway, crustal material, and marine sources. Different local sources also exist. The interpretation of seasonal variations in the data set is eased by studying the changes in the factor scores throughout the year. Distinct seasonal patterns are shown for some of the factors, in particular those representing soil dust and atmospheric transport from the marine environment.

引用

页码：259 / 273

页数：15