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Factor analysis of the MAP3S/RAINE precipitation chemistry network: 1976–1980
Abstract This paper presents a factor analysis of the MAP3S/RAINE precipitation chemistry data for the period 1976–1980. The purpose of the analysis is to determine the underlying source and/or processes accounting for the variance in the data. Three general sources, ‘acid,’ sea, and ‘ammonium/road dust/soil’ account for most of the variance in the data for the entire network for the aggregated three-and-one-half-year period. Both sulfate and nitrate are found to be significant components of the acid factor. Seasonal and spatial (individual site) analyses were able to distinguish other, less encompassing factors. Seasonal results showed a summer maximum in contribution for the acid factor, while individual site results showed that the contribution of the acid factor increases in going from the midwest to the northeast. Seasonal results show an ‘ammonium/soil’ factor appearing in spring and summer, while an ammonium sulfate factor appears in fall and winter. The results of this study should serve as a baseline for comparison with factor analyses of subsequent MAP3S data sets and factor analysis of other northeastern U.S. precipitation chemistry networks.
Factor analysis of the MAP3S/RAINE precipitation chemistry network: 1976–1980
Abstract This paper presents a factor analysis of the MAP3S/RAINE precipitation chemistry data for the period 1976–1980. The purpose of the analysis is to determine the underlying source and/or processes accounting for the variance in the data. Three general sources, ‘acid,’ sea, and ‘ammonium/road dust/soil’ account for most of the variance in the data for the entire network for the aggregated three-and-one-half-year period. Both sulfate and nitrate are found to be significant components of the acid factor. Seasonal and spatial (individual site) analyses were able to distinguish other, less encompassing factors. Seasonal results showed a summer maximum in contribution for the acid factor, while individual site results showed that the contribution of the acid factor increases in going from the midwest to the northeast. Seasonal results show an ‘ammonium/soil’ factor appearing in spring and summer, while an ammonium sulfate factor appears in fall and winter. The results of this study should serve as a baseline for comparison with factor analyses of subsequent MAP3S data sets and factor analysis of other northeastern U.S. precipitation chemistry networks.
Factor analysis of the MAP3S/RAINE precipitation chemistry network: 1976–1980
Crawley, J. (author) / Sievering, H. (author)
Atmospheric Environment ; 20 ; 1001-1013
1985-09-25
13 pages
Article (Journal)
Electronic Resource
English
Comments on MAP3S/RAINE precipitation chemistry statistics
| Elsevier | 1983
| TIBKAT | 2016
| British Library Online Contents