| DOI: | 10.1016/j.atmosenv.2016.11.056
|
| Scopus记录号: | 2-s2.0-84998673718
|
| 论文题名: | Particulate matter time-series and Köppen-Geiger climate classes in North America and Europe |
| 作者: | Pražnikar J
|
| 刊名: | Atmospheric Environment
|
| ISSN: | 0168-2563
|
| EISSN: | 1573-515X
|
| 出版年: | 2017
|
| 卷: | 150 | | 起始页码: | 136
|
| 结束页码: | 145
|
| 语种: | 英语
|
| 英文关键词: | Climate
; Clustering
; Köppen-Geiger classes
; Particulate matter
|
| Scopus关键词: | Cluster analysis
; Climate
; Clustering
; Continental climate
; Down-welling radiation
; Monitoring stations
; Particulate Matter
; Secondary aerosols
; United States of America
; Time series
; climate modeling
; climatic region
; cluster analysis
; concentration (composition)
; downwelling
; humid environment
; monitoring system
; particulate matter
; shortwave radiation
; time series analysis
; Article
; autumn
; Bulgaria
; climate
; cluster analysis
; controlled study
; Europe
; Finland
; geographic distribution
; Germany
; meteorology
; North America
; particulate matter
; precipitation
; priority journal
; semiarid climate
; summer
; United States
; Bulgaria
; Finland
; Germany
; Iberian Peninsula
; North America
; United States
|
| Scopus学科分类: | Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
|
| 英文摘要: | Four years of time-series data on the particulate matter (PM) concentrations from 801 monitoring stations located in Europe and 234 stations in North America were analyzed. Using k-means clustering with distance correlation as a measure for similarity, 5 distinct PM clusters in Europe and 9 clusters across the United States of America (USA) were found. This study shows that meteorology has an important role in controlling PM concentrations, as comparison between Köppen-Geiger climate zones and identified PM clusters revealed very good spatial overlapping. Moreover, the Köppen-Geiger boundaries in Europe show a high similarity to the boundaries as defined by PM clusters. The western USA is much more diverse regarding climate zones; this characteristic was confirmed by cluster analysis, as 6 clusters were identified in the west, and only 3 were identified on the eastern side of the USA. The lowest similarity between PM time-series in Europe was observed between the Iberian Peninsula and the north Europe clusters. These two regions also show considerable differences, as the cold semi-arid climate has a long and hot summer period, while the cool continental climate has a short summertime and long and cold winters. Additionally, intra-continental examination of European clusters showed meteorologically driven phenomena in autumn 2011 encompassing a large European region from Bulgaria in the south, Germany in central Europe and Finland in the north with high PM concentrations in November and a decline in December 2011. Inter-continental comparison between Europe and the USA clusters revealed a remarkable difference between the PM time-series located in humid continental zone. It seems that because of higher shortwave downwelling radiation (≈210 W m−2) over the USA's continental zone, and consequently more intense production of secondary aerosols, a summer peak in PM concentration was observed. On the other hand, Europe's humid continental climate region experiences lower solar radiation (≈180 W m−2); consequently, the elevated summer-time PM concentrations were not detected. © 2016 Elsevier Ltd |
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/82228
|
| Appears in Collections: | 气候变化事实与影响
|
|
There are no files associated with this item.
|
|
作者单位: | Institute Andrej Marušič, University of Primorska, Muzejski Trg 2, Koper, Slovenia
|
| Recommended Citation: | |
Pražnikar J. Particulate matter time-series and Köppen-Geiger climate classes in North America and Europe[J]. Atmospheric Environment,2017-01-01,150
|
|
|